Re: [Power Management] - Re: LT8490 Buck-Boost Battery Charge Controller with MPPT

Discussion created by viji0789 on Oct 6, 2017
Latest reply on Oct 16, 2017 by Tage

Hi sir,


Here i described the test setup


We are Tested LT8490 charger circuit through DC Voltage (20V) Input Given

to VIN with VINR pin to GND.

Measured BATTERY voltage 12.5V

Connected 12V Lead-acid Battery to LT8490 charger output terminal

Then Switched on the DC supply

we are checked INVCC,GATEVCC,LDO33 these all are got recomended voltage

we did not get clk from CLKOUT

SWENO always low

STATUS led blinking evey 4 sec

FAULT led Always ON

CHARGEDCFG1 We are not used

CHARGEDCFG2 we are not used

followed DEMO MANUAL DC2069A Circuit  and verified with same


Here i am attaching our schematics for your reference


Give us a list of pins to be probed


Can u please resolve this problem.





with regards