TLC6C5912-Q1: Deglitch time for each Fault Detection

RYO

Intellectual 2000 points

Part Number: TLC6C5912-Q1
Other Parts Discussed in Thread: TLC6C5712-Q1

Hello all,

Can you tell me the deglitch time for each fault detection functionality? Also, are these functions available when PWM duty is 100% or 0%?

Weak-LED-supply detection
Reference resistor open or short detection

Thank you,
RYO

over 5 years ago

0 Anda Zhang over 5 years ago

TI__Expert 5380 points

Do you mean the TLC6C5712-Q1 part?

For LED open and output short to GND fault, they are not availabe during 100% or 0% duty cycle, as there is no on/off time to distinguish these two faults. For LED short fault, the part can still report the fault nomally regardless the PWM dutycyle. The deglitch time is in the electric table in the datasheet.

Weak-LED supply detecion and reference resistor fault have nothing to do with PWM dutycyle.

0 Anda Zhang over 5 years ago in reply to Anda Zhang

TI__Expert 5380 points

The Weak LED Supply deglitch time is 20us.

Power management

Power management forum

TLC6C5912-Q1: Deglitch time for each Fault Detection