TPS92520-Q1: the TPS92520 output current accuracy issue ,when in PWM output mode

hongwei geng

Part Number: TPS92520-Q1

Tool/software:

Hello,TI Team

As per the datasheet ,the the TPS92520 output current accuracy are only determined by the V(csp-csn) and shunt resistor,right?no matter the DC OUTPUT MODE or PWM output mode

1 month ago

0 fhoude 1 month ago

TI__Mastermind 21125 points

The accuracy is for DC setpoint at full scalle voltage (full current). When doing PWM dimming other factors affect accuracy outside of the DC regulation setpoint.

0 hongwei geng 1 month ago in reply to fhoude

Prodigy 30 points

so how can i calculate the current accuracy ,when output in PWM mode

0 fhoude 1 month ago in reply to hongwei geng

TI__Mastermind 21125 points

Hello Hongwei,

Here are some videos that cover the basics of driving LEDs and the different dimming methods. Let me know if you have questions after you have gone through these videos.

LED Driver Basics - Training Videos

-fhoude

Power management

Power management forum

TPS92520-Q1: the TPS92520 output current accuracy issue ,when in PWM output mode