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TPS922054: Led driver

Part Number: TPS922054


Tool/software:

Hi, I noticed an instability when i use the IC with the following configuration.

PWM: high

Adim: 20kHz ca.10% 

Rcomp: 1kohm

Ccomp: 20nF

fset: 1MHz

current max: 3A

see the PDF:

green: ADIM

blue: current through the Led

violet: tension on the Rsense

light green: PWM

current instability TPS92 .pdf