LM3642: Camera flash LED support hardware control LED current

Hugo Liu

Genius 5095 points

Part Number: LM3642
Other Parts Discussed in Thread: LM3643, LM36011, LM36010, LM3644

Hi Sir,

Does TI have Camera flash LED support hardware control LED current IC?

ILED is 350mA & 1000mA.

Hugo

over 4 years ago

0 Sean Zhou over 4 years ago

TI__Mastermind 22745 points

Hi Hugo,

What's your meaning of "Hardware control"? Usually, our flash LED driver will have an I2C interface, this is very convenient to change the current. For hardware control, maybe you need to change a resistor? What's your detail specifications?

Regards

Sean

0 Sean Zhou over 4 years ago in reply to Sean Zhou

TI__Mastermind 22745 points

Hi Hugo,

Regards

Sean

0 user4213388 over 4 years ago in reply to Sean Zhou

Prodigy 50 points

Sir,

Hardware control means to use resistor to set LED current. We design a camera flash LED. See attached flash led spec.ELCS14B-NB5060J7J9283910-F4Z_2P.pdf

0 Sean Zhou over 4 years ago in reply to user4213388

TI__Mastermind 22745 points

Hi Sir,

I'm sorry that our flash LED drives are all configured with I2C interface. It is more convenient to use I2C to configure the current and report the error message. Thanks.

Regards

Sean

0 user4213388 over 4 years ago in reply to Sean Zhou

Prodigy 50 points

Sir,

OK. Which one is more popular for our project ?Please advise. Thank you.

0 Sean Zhou over 4 years ago in reply to user4213388

TI__Mastermind 22745 points

Hi Sir,

There are some different choice for different requirement, for single-channel you can check whether LM36010/LM36011 can meet your requirment. LM3643/LM3644 are dual channels flash LED driver.

Can you share me your detail requirement?

Regards

Sean

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LM3642: Camera flash LED support hardware control LED current