Part Number: LM3642 Hi Team,
In datasheet, it mentioned Vin range is 2.5V min.
And UVLO is 2.8V typical.
So does it mean when UVLO function is disabled, then Vin can support as low as 2.5V for start up? Thanks.
BRs
Given
Part Number: LM3642 Other Parts Discussed in Thread: LM3643 , LM3544 Hi team,
My customer is looking for the alternative of AW9523BTQR，AW36423FCR，OCP8132AVAD(need P2P and good supply)
Can you help check this issue?
Thanks
Best regards
Lillian
Part Number: LM3642 Hi team,
I wonder the current accuracy when the output current is around 100mA(in torch mode the output current is 93.74mA and 140.63mA). In datasheet the accuracy is 10% when the output current is 48mA. Is the accuracy higher when…
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
Hi Sean,
Customer connects LED pin to load switch then to LED, there is 1uF in load switch input, 1uF in output. (that means 2uF in LM3642 LED pin to GND)
After removing 2uF capacitor, torch mode can be enabled normally.
Regards,
Allen
Part Number: LM3642 hi
I would like to ask about the LM3642 design as follows.
1. Development progress - Control by I2C communication, HW pin such as STROBE, TX / TORCH etc. is not used. - It is implemented in order of about 1.2A -> 350mA -> 350mA flashing…
Part Number: LM3642
Hi Team, I would like to ask two questions. 1) I believe the following LED efficiency include the efficiency of boost converter. Is my understanding correct? 2) Does TI have the LED efficiency data under VIN=2.5~3.5V (especially VIN=3.0…
Part Number: LM3642 Hi,
I'm using LM3642 as the LED driver for the camera, and programed below two registers
0x2 --> Enable Register (0x0A)
0x70 --> Current Control Register (0x09)
but when I measure LED pin using the scope, the output is 0V…
