TPS3710: Calculating Sense resistor value for 2.1V threshold level

DEEPAK V14

Intellectual 810 points

Part Number: TPS3710

Hi,

TPS3710 have VDD=12V and the sense input is driven by 3.3V GPIO of uC/FPGA.

I am looking to set up a Raising Threshold Voltage of 2.1V for TPS3710

For this calculations are made with VIT- = 394.5mV and Isense =25nA.

Q1. Please validate the resistor values R1=807.84K and R2=187K can set the Raising Threshold voltage to 2.1V with built-in hysteresis of 5.5mV?

Thanks in Advance
DEEPAK V

over 7 years ago

0 Michael_DeSando over 7 years ago

TI__Genius 12630 points

Deepak,

For setting the rising threshold, please use VIT+ (+ signifies rising threshold)

I calculated:

R1 = 787k (standard value), R2 = 187k (standard value), and Vit+ = 0.4V, this provides a 2.083V trigger voltage at the GPIO output.

-Michael

0 DEEPAK V14 over 7 years ago in reply to Michael_DeSando

Intellectual 810 points

Thank you Michael

Regards
DEEPAK V

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TPS3710: Calculating Sense resistor value for 2.1V threshold level