Part Number: TPS61176 Tool/software: I'm designing a rechargeable lamp using the TPS61176 to drive 4 LED strings (4 LEDs per string). Despite seemingly correct component values, I'm getting lower than expected voltage and current.
Configuration…
Part Number: TPS61176 Hi,
I want to add a capacitor to each IFB pin of the TPS61176 because flickering occurs in the immunity test. Please let me know if there is a recommended range for capacitor capacity.
Best regards,
Hi
Based on loop measurement results, I think the margin is fine. But bench test is also needed under your working conditions to double confirm if any unstable issue will be found.
BR
Patrick
Part Number: TPS61176 In the previous revision of our design we did not have the protection (PMOS) circuit and the MODE/FAULT pin was simply pulled to GND through a 1.3M resistor. In that original version the part behaved as expected.
The PWM signal…
Part Number: TPS61176
Hi team, In mode4, if a 120Hz PWM signal is an input, the output will be lost sometimes. Blue : IFBx Green : Input PWM signal This phenomenon only occurs in mode4. It also occurs when Duty is 10% to 0.5%. It does not occur below 0.5%…
Part Number: TPS61176 Hi team, Is it possible to set a duty 1% at 100Hz? If it was inputting a low-frequency signal(100Hz), could you tell me if you have anything to worry about? Sincerely. Kengo.
Part Number: TPS61176 Other Parts Discussed in Thread: LP8553 , LP8556 Dear team
The customer would like to select the solution of LED driver.
The spec as below
Vin:2.8V~4.5V
ILED=40mA/per channel
VLED=30V/4ch
Could TPS61176 support this spec?
Many th…
Part Number: TPS61176 Other Parts Discussed in Thread: TPS61177A , LP8556 , LM36274 Hi team,
Do we have a higher Balance rate solution for this multi-channel BL driver IC? The current typical value of TPS61176 is 1.3%. What is the maximum value of it? Thanks…