Part Number: LP8866-Q1 Other Parts Discussed in Thread: TPS92391 Tool/software: Hi! I see these devices are pin to pin and look identical. What is the difference between them? Thanks!
Part Number: TPS92391 Tool/software: Is the switching frequency of the TPS92391's boost converter limited to the the 8 frequencies listed in table 7-1 of the datasheet or are there other frequencies that can be set by using in-between resistor values…
Part Number: TPS92391 Hi team,
1. Is it set based on the lowest voltage of the LED light string? 2. The FB resistor has two modes: 2-resistor voltage division and 3-resistance voltage division. Based on previous experience, it is recommended to use…
Part Number: TPS92391 Tool/software: Hi Sir,
When the PWM is turned off, the LED drive current will be delayed about 600ms, let the backlight LED completely turned off, it is too long.
May I know how to decrease the backlight turn-off timing? Could…
Part Number: TPS92391 Tool/software: Certainly! Here is the revised version of your question in formal English:
Hi,
I am working with the "TPS92391 Boost/SEPIC High Dimming Performance LED Driver" to drive LEDs. I set a value between 0 and 4095…
Part Number: TPS92391 Tool/software: Hello TI Team,
When the power is turned on about 40ms it will generate a very high inrush current(~4.8A). I think it's pre-charging before the backlight is turned on. But the high current will cause system instability…
Part Number: TPS92391 Hi team，
When cold starting at low temperature (-35), a black screen appears, and the fault pin of the measured waveform is pulled low. Judging from the test voltage, it is in an overvoltage state. The customer uses the LP8866…
Part Number: TPS92391 Tool/software: Hi team，
Please help confirm the timing relationship between 92391 PWM and EN. If PWM is output before EN, will it affect the IC?
Part Number: TPS92391 Dears, Could you confirm this circuit diagram?
/cfs-file/__key/communityserver-discussions-components-files/24/TPS92391.pdf The total current of the applied LED is 350mA.
Are the following two ways of use feasible? 1. Set LED_Set…
