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TPS92200: New Product Update's Contents

Y.Ottey
Mastermind 6145 points
Part Number: TPS92200

Dear TI Team

I have a question about the contents of the following New Product Update.
https://www.ti.com/lit/ml/slyp741/slyp741.pdf?ts=1610411673479&ref_url=https%253A%252F%252Ftraining.ti.com%252F

1. The TPS92200D1 can control the LED current by Analog Dimming or PWM Diming. How do you switch the control method?
(I didn't have a pin to switch the control method, so please let me know.)

2. When controlling the LED current with the TPS92200, what percentage of the LED current can be controlled? (Can the LED current be controlled to almost 0%?)

3.New Product Update introduces the circuit using TPS92200 in the battery application. Why are you introducing that the TPS92200 can also be used in battery circuits?
(I think it's cheaper to configure than BQ products, but please let me know if there are other reasons.)

Regards,

Y.Ottey

  • 0
    TI__Mastermind 22745 points

    Hi Ottey,

        Thanks for attendig our new products update conference, here are the answer for your question:

        1. TPS92200D1 adjust the dimming mode with the signal applied to the "DIM" pin, if you apply a voltage from 0.65V to 1.2V to the "DIM" pin, it will enter analog dimming mode and if you apply a PWM signal to the "DIM" pin, it will enter into PWM dimming mode;

        2. We recommend to adjust the current between 1% to 100%, if you pull down the "DIM" pin to ground or below 0.3V, the current will be zero;

        3. Yes, you are right, TPS92200 can be used as a cost-optimized solution comparing with the BQ solution.

    BR

    Sean