Part Number: TPS54200 Tool/software: Hi, TI Expert.
I'm using TPS54200 for IRLED driving.
Driving mode is analog dimming mode.
For some reason, i want to change PWM frequency during operating.
Expected frequency range is 20kHz ~ 50kHz.
Is…
Part Number: TPS54200 Tool/software: Hi, TI expert
The customer's product has TPS54200 applied, and there are the following defect issues.
- There have been 4 defects so far where REG's GND (1pin) and PWM (5pin) are short-circuited, and all of them…
Part Number: TPS54200 Other Parts Discussed in Thread: TPS92640
Dear TI team,
Can you please check the TPS54200 converter output voltage below conditions?
(1) Vin : 12V
(2) Vout : 1.7V , Iout : 0.6A
When I calculate duty, it is approximately…
Part Number: TPS54200 Tool/software: Dear TI experts,
My customer has a problem about TPS54200.
Their product is in mass production. And Some products have failure in production test status.
When the device is in failure, they can see that GND and…
Part Number: TPS54200 Other Parts Discussed in Thread: TPS92200
Hi all
I would like to ask you some question about TPS54200.
・What is the Min the value of Falling Vpwm? (typ=1.8V)
I would like to know Analog dimming-mode threshold (Vadim)…
Part Number: TPS54200 Other Parts Discussed in Thread: TPS92200 Hi TI,
I have a few question regarding TPS54200 as below:
1 ) From the datasheet, analog dimming equation stated that the ILED is the maximum LED current, but may I know it is based on…
Part Number: TPS54200 Hi
Debug between led+ and led-, using a 200Ω resistor
The pwm uses 3.3v direct power supply, and the lamp series uses a resistor instead, but the fb pin voltage is always 100mv
Could you please help confirm the cause
T hank…
Part Number: TPS54200 Other Parts Discussed in Thread: LM3405A Hi TI,
I'm trying to design a driver for a laser diode and in the chart below you see some test results with TPS54200 and LM3405A. I need to keep the current below 600mA.
Unfortunately…
Part Number: TPS92200 Other Parts Discussed in Thread: TPS54200 Is it possible to be sent the efficiency comparison between the TPS92200 and TPS54200 LED Drivers?
Many thanks,
Sam
Part Number: TPS54200 Other Parts Discussed in Thread: TPS54201 Tool/software: Dear TI members,
I've tested like below circuits, vin and pwm voltage applying at the same time.
the result is output irled is not turned on. irled is connected serial…
