LTC4162-L UnderVoltage Control Loop Recursive, Battery Charging Issue

Question

Hello, 
 We are trying to get this Solar/Basic Charging of 2S Li ICR Chemistry to work. But it seems like charging is not happening. 
 Our Observations: 
 
 Battery Detection Starts 
 Detects Battery and Starts Charging 
 UVCL Take over (Check 0x35 Address Register in Log) 
 Charging Stops 
 Again Battery Detection Starts 
 
 What's Working are: 
 
 Load Path Switching 
 Telemetry Communication. 
 
 Attached: 
 
 Serial Log of Register Values 
 Images of the LTC4162-L41M Section with Capacitor slammed as near to IC also. 
 
 Power Sources 
 
 12 VDC 1 Amp Source on VIN Channel 
 2S Li Ion Battery with NTC 10K but Beta value little less than recommended Beta value for sure. 
 
 Wired Data observation on Registers are: 
 
 0x4b = 0xff sometimes, or some other values ... 
 0x16 = 0x1f which is not the default value as datasheet says. 
 
 Alerts are off for now. 
 - R35 in our board is 0.010 R, not 0.016R as shown in Schematic. 
 - On VIN line, Capacitor And Resistor are installed as per Solar Energy Harvesting Guidelines suggest in the datasheet. Not sure if this is some VIN Impedance issue? If it is then what exactly it is? 
 
 Please let us know what is the issue here? 
 We have not changed any settings and was testing with AS Received from Factory Settings with JEITA and MPPT OFF and Telemetry is Forced On! 
 
 Regards, 
 Annim Banerjee

Fullscreen 
 2450.serial_log_capture.txt 
 Download 
 
 1576637488,StartDefaultTask : MCU CPU Temperature: 34.02C
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x5 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x6 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x7 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x8 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x9 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xa : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xb : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xc : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xd : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xe : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xf : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x10 : 0x45e9 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x11 : 0x46d2 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x14 : 0x6 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x15 : 0x3f .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x16 : 0x1f .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x17 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x18 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x19 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1a : 0x1f .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1b : 0x17 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1c : 0x888 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1d : 0x3840 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1e : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1f : 0x3ef5 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x20 : 0x3721 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x21 : 0x1f22 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x22 : 0x1bc8 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x23 : 0x18b5 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x24 : 0x136a .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x25 : 0x16f .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x26 : 0x3ef7 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x27 : 0x1ef .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x28 : 0x7fef .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x29 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2a : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2b : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2c : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2d : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2e : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2f : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x30 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x31 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x34 : 0x800 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x35 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x36 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x37 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x38 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x39 : 0x67 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3a : 0x490a .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3b : 0x1f46 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3c : 0x1f3b .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3d : 0xffe0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3e : 0x68 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3f : 0x3551 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x40 : 0x2a30 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x41 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x42 : 0x3 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x43 : 0x22e2 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x44 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x45 : 0x17 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x46 : 0x3f .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x47 : 0x4905 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x48 : 0 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x49 : 0x6 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4a : 0x1 .
1576637488,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4b : 0xff .

1576637488,StartDefaultTask : Data Collected ----------------------------------------
1576637488,StartDefaultTask : MCU Tj : 34.02C
1576637488,StartDefaultTask : LTC4162 VIN: 13.2307 VDC
1576637488,StartDefaultTask : LTC4162 IIN: 0.158320 A.
1576637488,StartDefaultTask : LTC4162 VOUT: 13.2140 VDC.
1576637488,StartDefaultTask : LTC4162 DIE Temperature: 29.0105 C.
1576637488,StartDefaultTask : LTC4162 Battery Voltage: 7.1950 VDC.
1576637488,StartDefaultTask : LTC4162 Battery Current: -0.0337 A.
1576637488,StartDefaultTask : End of Data Collected Display
1576637488,----------------------------------------

 

1576637493,StartDefaultTask : MCU CPU Temperature: 34.17C
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x5 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x6 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x7 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x8 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x9 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xa : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xb : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xc : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xd : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xe : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xf : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x10 : 0x45e9 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x11 : 0x46d2 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x14 : 0x6 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x15 : 0x3f .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x16 : 0x1f .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x17 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x18 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x19 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1a : 0x1f .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1b : 0x17 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1c : 0x888 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1d : 0x3840 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1e : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1f : 0x3ef5 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x20 : 0x3721 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x21 : 0x1f22 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x22 : 0x1bc8 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x23 : 0x18b5 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x24 : 0x136a .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x25 : 0x16f .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x26 : 0x3ef7 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x27 : 0x1ef .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x28 : 0x7fef .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x29 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2a : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2b : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2c : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2d : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2e : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2f : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x30 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x31 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x34 : 0x40 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x35 : 0x8 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x36 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x37 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x38 : 0 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x39 : 0x147 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3a : 0x4909 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3b : 0x1f44 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3c : 0x1f39 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3d : 0x18 .
1576637493,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3e : 0x76 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3f : 0x3550 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x40 : 0x2a26 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x41 : 0 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x42 : 0x3 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x43 : 0x22e2 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x44 : 0x1f .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x45 : 0x17 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x46 : 0x3f .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x47 : 0x4904 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x48 : 0 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x49 : 0x6 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4a : 0x1 .
1576637494,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4b : 0xd8 .

1576637494,StartDefaultTask : Data Collected ----------------------------------------
1576637494,StartDefaultTask : MCU Tj : 34.17C
1576637494,StartDefaultTask : LTC4162 VIN: 13.2258 VDC
1576637494,StartDefaultTask : LTC4162 IIN: 0.183241 A.
1576637494,StartDefaultTask : LTC4162 VOUT: 13.2091 VDC.
1576637494,StartDefaultTask : LTC4162 DIE Temperature: 29.0320 C.
1576637494,StartDefaultTask : LTC4162 Battery Voltage: 7.1938 VDC.
1576637494,StartDefaultTask : LTC4162 Battery Current: 0.0366 A.
1576637494,StartDefaultTask : End of Data Collected Display
1576637494,----------------------------------------

1576637499,StartDefaultTask : MCU CPU Temperature: 34.35C
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x5 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x6 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x7 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x8 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x9 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xa : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xb : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xc : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xd : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xe : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xf : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x10 : 0x45e9 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x11 : 0x46d2 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x14 : 0x6 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x15 : 0x3f .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x16 : 0x1f .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x17 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x18 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x19 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1a : 0x1f .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1b : 0x17 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1c : 0x888 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1d : 0x3840 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1e : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1f : 0x3ef5 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x20 : 0x3721 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x21 : 0x1f22 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x22 : 0x1bc8 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x23 : 0x18b5 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x24 : 0x136a .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x25 : 0x16f .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x26 : 0x3ef7 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x27 : 0x1ef .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x28 : 0x7fef .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x29 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2a : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2b : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2c : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2d : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2e : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2f : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x30 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x31 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x34 : 0x40 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x35 : 0x8 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x36 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x37 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x38 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x39 : 0x147 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3a : 0x4907 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3b : 0x1f42 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3c : 0x1f18 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3d : 0xffe7 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3e : 0x73 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3f : 0x3555 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x40 : 0x2a2e .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x41 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x42 : 0x3 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x43 : 0x22e2 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x44 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x45 : 0x17 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x46 : 0x3f .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x47 : 0x4905 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x48 : 0 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x49 : 0x6 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4a : 0x1 .
1576637499,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4b : 0xff .

1576637499,StartDefaultTask : Data Collected ----------------------------------------
1576637499,StartDefaultTask : MCU Tj : 34.35C
1576637499,StartDefaultTask : LTC4162 VIN: 13.2291 VDC
1576637499,StartDefaultTask : LTC4162 IIN: 0.172979 A.
1576637499,StartDefaultTask : LTC4162 VOUT: 13.2107 VDC.
1576637499,StartDefaultTask : LTC4162 DIE Temperature: 28.9890 C.
1576637499,StartDefaultTask : LTC4162 Battery Voltage: 7.1954 VDC.
1576637499,StartDefaultTask : LTC4162 Battery Current: -0.0396 A.
1576637499,StartDefaultTask : End of Data Collected Display
1576637499,----------------------------------------

1576637505,StartDefaultTask : MCU CPU Temperature: 34.35C
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x5 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x6 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x7 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x8 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x9 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xa : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xb : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xc : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xd : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xe : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xf : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x10 : 0x45e9 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x11 : 0x46d2 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x14 : 0x6 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x15 : 0x3f .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x16 : 0x1f .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x17 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x18 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x19 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1a : 0x1f .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1b : 0x17 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1c : 0x888 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1d : 0x3840 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1e : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1f : 0x3ef5 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x20 : 0x3721 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x21 : 0x1f22 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x22 : 0x1bc8 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x23 : 0x18b5 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x24 : 0x136a .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x25 : 0x16f .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x26 : 0x3ef7 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x27 : 0x1ef .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x28 : 0x7fef .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x29 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2a : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2b : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2c : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2d : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2e : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2f : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x30 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x31 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x34 : 0x800 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x35 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x36 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x37 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x38 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x39 : 0x67 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3a : 0x4909 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3b : 0x1f45 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3c : 0x1f38 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3d : 0xffe6 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3e : 0x6c .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3f : 0x354f .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x40 : 0x2a28 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x41 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x42 : 0x3 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x43 : 0x22e2 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x44 : 0x2 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x45 : 0x17 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x46 : 0x3f .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x47 : 0x4905 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x48 : 0 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x49 : 0x6 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4a : 0x1 .
1576637505,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4b : 0xfc .

1576637505,StartDefaultTask : Data Collected ----------------------------------------
1576637505,StartDefaultTask : MCU Tj : 34.35C
1576637505,StartDefaultTask : LTC4162 VIN: 13.2258 VDC
1576637505,StartDefaultTask : LTC4162 IIN: 0.170047 A.
1576637505,StartDefaultTask : LTC4162 VOUT: 13.2074 VDC.
1576637505,StartDefaultTask : LTC4162 DIE Temperature: 29.0750 C.
1576637505,StartDefaultTask : LTC4162 Battery Voltage: 7.1946 VDC.
1576637505,StartDefaultTask : LTC4162 Battery Current: 0.0366 A.
1576637505,StartDefaultTask : End of Data Collected Display
1576637505,----------------------------------------


1576637510,StartDefaultTask : MCU CPU Temperature: 34.35C
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x5 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x6 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x7 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x8 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x9 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xa : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xb : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xc : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xd : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xe : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0xf : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x10 : 0x45e9 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x11 : 0x46d2 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x14 : 0x6 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x15 : 0x3f .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x16 : 0x1f .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x17 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x18 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x19 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1a : 0x1f .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1b : 0x17 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1c : 0x888 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1d : 0x3840 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1e : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x1f : 0x3ef5 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x20 : 0x3721 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x21 : 0x1f22 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x22 : 0x1bc8 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x23 : 0x18b5 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x24 : 0x136a .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x25 : 0x16f .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x26 : 0x3ef7 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x27 : 0x1ef .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x28 : 0x7fef .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x29 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2a : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2b : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2c : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2d : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2e : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x2f : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x30 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x31 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x34 : 0x40 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x35 : 0x8 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x36 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x37 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x38 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x39 : 0x147 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3a : 0x4908 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3b : 0x1f41 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3c : 0x1f36 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3d : 0x19 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3e : 0x6d .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x3f : 0x354f .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x40 : 0x2a1e .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x41 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x42 : 0x3 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x43 : 0x22e2 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x44 : 0x1f .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x45 : 0x17 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x46 : 0x3f .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x47 : 0x4904 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x48 : 0 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x49 : 0x6 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4a : 0x1 .
1576637510,ltc4162_sc_verbose_look : LTC4162 Register Address: 0x4b : 0x70 .

1576637510,StartDefaultTask : Data Collected ----------------------------------------
1576637510,StartDefaultTask : MCU Tj : 34.35C
1576637510,StartDefaultTask : LTC4162 VIN: 13.2291 VDC
1576637510,StartDefaultTask : LTC4162 IIN: 0.175911 A.
1576637510,StartDefaultTask : LTC4162 VOUT: 13.2107 VDC.
1576637510,StartDefaultTask : LTC4162 DIE Temperature: 29.1180 C.
1576637510,StartDefaultTask : LTC4162 Battery Voltage: 7.1942 VDC.
1576637510,StartDefaultTask : LTC4162 Battery Current: 0.0366 A.
1576637510,StartDefaultTask : End of Data Collected Display
1576637510,----------------------------------------

ADIApproved · Accepted Answer

Hello Annim, 
 Register 0x16 is 0x1F which is the default value. The default value in the datasheet is given in decimal notation, so 0x1F hex = 31 decimal. 
 With MPPT enabled, the UVCL is driven by the MPPT function, so that would explain why you are regulating on the UVCL loop. Try putting some impedance in series with your power supply. The problem may be that the LTC4162 has nothing to regulate against since you are using a low-impedance power supply rather than a solar panel with MPPT enabled. 
 I also recommend you copy the sizes and values of the INTVCC and VCC2P5 caps from the demo board. It is not good to oversize them because they may compete for current at startup. The 2P5VCC cap should have less capacitance. 
 
 Regards, Zack)

annimbanerjee · Answer

Hello Zack, 
 
 Thank you for your comments and feedback. Your comment really helped us to see and understand the thing clearly. 
 Issue Solved - and now it is charging with Solar Panel Plugged in! 
 Solution:(For others to read) 
 - Follow / Obey the parts specification/Ratings as per Demo Board for the corresponding part, from the Demo Board Manual one can get the BOM. 
 - We changed the Capacitor of VCC2P5 to 0.1uF in our case as we didn't have 1uF 6.3V at the moment but this change enabled us to observe Charging of 2S battery with solar panel Plugged in. This should be 1uF as the demo board has it. 
 - VOUT caps should be as near as possible to IC die. 
 - Try to get recommended NTC which is mentioned in the datasheet. In our case we had some other Beta valued NTC but the beta value was closer to the recommended one. This I believe impacts the JEITA based charging activity. 
 - Solar Panel Cable characteristics also matter and hence one should ponder on that too. (Just mentioning here without any details, This also matters). 
 - Always test with Solar Panel(or based on your design req), and do not test with other power sources that are not supposed to be used and conclude that design is wrong, like us!!! hehe. 
 
 Thanks 
 Regards, 
 Annim Banerjee/

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Thread Details

LTC4162-L UnderVoltage Control Loop Recursive, Battery Charging Issue

Thread Summary

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