Fan Speed & TEC Controllers

Our fan controllers should also be able to drive 3V fans even though they are rated for 5V or 12V.

MAX6650 is a linear fan controller. The rotational speed of a 4-wire fan is usually controlled by PWM. MAX6650 cannot provide PWM output, thus MAX6650 is generally not used for a 4-wire fan.

Make sure bits D2, D3, and D7 of Fan Configuration registers 10h and 14h are set to ‘0’. Enter the desired target tachometer count into registers 22h and 23h. Note that you cannot change the Duty Cycle…

MAX31790ATI+T: FAQ

MAX6639: FAQ

MAX6650EUB+: FAQ

MAX31790 is currently only available in TQFN package (MAX31790ATI+). The themal data can be found below: Single-Layer board: Theta Jc - 3 ° C/W Theta Ja - 48 ° C/W Multi-Layer board: Theta…

The source/sink capability of the PWM output is in the VOH1 and VOL1 specifications. The PWM output pins can sink 4mA and source 2mA.

In the I2C specification document the maximum SCL/SDA rising time is specified as 1000ns. In the MAX31790 datasheet we define maximum rising time as 300ns (typ). Will the MAX31790 be suitable for an application…