Richard,
I tried your sequence you initially provided and I don't see any issues. I see the thermistor voltage come up and does not appear to cause the LED current to move. Have you ordered a LM3648 EVM to try out your sequence? While the torch current…
Part Number: LM3648 Hello, I have questions about Lm3648.
(1) Pin connections If we use LM3648 on the torch mode and control by I2C. Could you please let me know the recommended pin connection of HWEN, STROBE, TORCH/TEMP, TX? HWEN : pull up to IN with…
Part Number: LM3648 Hello,
Could you please let me know the current accuracy at low current about 40mA? ( Torch current mode, code 0x0E) Is it +/-10%?
Best Regards, Ryuji
Part Number: LM3648EVM Other Parts Discussed in Thread: LM3644 , LM3648 Tool/software: Hello
I bought the LM3648EVM board and i am asking for assistance in finding the GUI for this piece of hardware.
Thanks!
Eli
Part Number: MSP-EXP430FR2311 Other Parts Discussed in Thread: LM3648 , , USB2ANY I wired MSP-EXP430FR2311 the same way as SLAA908A instructed. Download the firmware image file from SLAA908A to MSP-EXP430FR2311 through CCS. When I connect MSP-EXP430FR2311…
Part Number: LM3643 Other Parts Discussed in Thread: LM3648 , LM36010 Hi Sir,
We knew the LM3643 and LM3648 both have same I2C address= 0x63. My customer and I are trying to figure out the differences between the LM3643 and LM3648TT. They have ever…
Hi Wayne,
There are two solutions for you:
1. LM3644 which is the two-channel flash LED driver and you can use each channel to two or three LEDs it seems the forward voltage is less than 4V which is less than the OVP threshold;
2. LM36010+LM3648…
Part Number: LM2759 Other Parts Discussed in Thread: LM3648 Hello, I have questions about I2C of LM2759.
(1) I2C specification In the datasheet, there is few I2C timing specifications only. Can we use this device on the following I2C specification which…
Greg,
Thank you for your reply. LM3648 will be a better solution from the data sheet description. But from the data sheet, I can't see exactly how fast the response of LM3648 is. Will LM2759 have similar repeated pulse on/off performance as LM3648? …
Hi Polly,
I'm sorry that we don't have a buck led backlight driver as you need , but I can recommend a flash driver for you, flash driver can work with torch mode which is very similiar with backlight driver. And it can work under bypass mode( is similiar…
