LM36274: output currnet cannot set by PWM duty

JeffYC Yang

Expert 1290 points

Part Number: LM36274

Hi Sir,

I want set LM36274 output current by external PWM duty, now I tried set 0x02= [0xFB],

but seems still cannot work, any other register need set?

Thanks!

Jeff

over 7 years ago

0 Angelos Tsiros over 7 years ago

TI__Intellectual 2140 points

Hi,

You still need to set the BL_EN bit and the desired BLEDx enable bits in register 0x08 (0x1F if you need all strings enabled).

I hope this solves your problem.

Regards,
Angelos Tsiros

Power management

Power management forum

LM36274: output currnet cannot set by PWM duty