LP5569: Feature

Kai Hsiao

Guru 12675 points

Part Number: LP5569
Other Parts Discussed in Thread: LP55231, , LP5523

Dear SIr

I saw LP5569 p2p with LP5523 and LP55231

May I know what's the key benefit of LP5569 and compare with LP5523 and LP55231

Thanks

0 Summer SU over 8 years ago

Hi,

LP5569 is not p2p with LP5523 and LP55231.

LP5569 PWM dimming frequently is 20khz, there is no audio noise. LP5569 instrution set is 256, LP5523 is 96.

LP5569 is low side current regulation but LP5523 is high side.

Any more question please let me know.

Thanks!

Summer

0 Kai Hsiao over 8 years ago in reply to Summer SU

Guru 12675 points

Dear Summer

1. LP5569 => 100Hz~20KHz PWM input / LP5523 => 312Hz PWM input only ,is it correct?

2. What 's the benefit of low-side Sink? what's the benefit of high side source ?

Thanks

0 Summer SU over 8 years ago in reply to Kai Hsiao

Hi Kai,

It is easy to find the common anode LED in the market.

They need the low side current regulations.

Thanks!

Summer

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