Part Number: LM3646 Hi Sir,
My customer looking for IR LED driver, control by Flash.
Could you pls advise if LM3646 is suitable one? Thanks.
Vendor
OSRAM
OSRAM
P/N
SFH 4725AS A01
SFH 4180S
Forward voltage(V)
2.65(@1A), 3.65max
…
Part Number: LM3464 Other Parts Discussed in Thread: LM3553 , , LM3643 , LM36010 Support Path: /Product/Help with Device Selection/ I am currently using lm3553 for two IR LEDs flash light.
We are looking to go to 4 LEDs with I2C configuration but there is…
Hi,
The issue is not with the GUI but with the EVM. Just starting the GUI and pressing "Flash" or "Torch" will turn the LEDs on in the corresponding mode. If the LEDs blink briefly and do not turn on again until you reset the LM3646 or read the flags…
Is there any way to use the Flash mode (external stroble) without having to set the Flash LED mode bits (m1, m0) each time you want to strobe. On page 31 of the data sheet there's a timing diagram that is labeled Level-Sensitive Strobe without Timeout…
Other Parts Discussed in Thread: LM3556 Hello,
Can I use LM3646 by single LED only?
We use LM3556 currently. However we would like to use the LED current under 20mA from next time. Since LM3556 minimum LED current is 46.88mA, we can' t use this device.…
Other Parts Discussed in Thread: LM3644 Hello,
I would like to drive a LED at a maximum flash current of 2.5A. Unfortunately all Chips I found for Flash mode only support a maximum current of 1.5A on one channel.
So the idea was to use the outputs of…