LM3429

Jason Teoh

Other Parts Discussed in Thread: LM3429, LM3421

Hi Guys,

Just wanted to know how is pin 7 (nDIM) will work with PWM signal ? It would be useful to understand this in LM3429 switcher device.

From,

Jason

over 12 years ago

0 Ryan May over 11 years ago

TI__Genius 13700 points

Hello Jason,

There is limited discussion in the datasheet from the LM3429 for the PWM dimming. Others have looked into this issue and their discussion can be seen in the E2E post below.

http://e2e.ti.com/support/power_management/led_driverslcd_bias/f/192/p/148340/645102.aspx#645102

Their conclusion was to move to the LM3421 which should be able to handle the PWM dimming a little bit better.

Ryan May

Power management

Power management forum

LM3429