TPS61169: May we have LED driver ic that support up to 400mA~500mA for one cell battery?

Chen Bogey8

Mastermind 9990 points

Part Number: TPS61169
Other Parts Discussed in Thread: TPS61165

Hi Sir

May we have LED driver ic that support up to 400mA~500mA for one cell battery?

Customer hope Vin range 2.8V~4.2V, LED/3S7P, total LED current around 420mA)

I just find similar part TPS61169. may you having other suggestion part?

Bogey

over 7 years ago

0 Sheng Jin over 7 years ago

TI__Expert 3370 points

Hi,
Normally the min VIN is much higher with such high power application, the most closest part could meet your application is LP8863, which is a 6 channel Q grade part.

0 Chen Bogey8 over 7 years ago in reply to Sheng Jin

Mastermind 9990 points

Hi Sir
If we choice TPS61165 and provide Vin =8V.
Is it possible to provide Iled current up to 450mA?(LED is 3S7P).
Bogey

0 Caryss Li over 7 years ago in reply to Chen Bogey8

TI__Expert 4550 points

Hi Bogey,
Theoretically TPS61165 could supply 450mA output current, but you need to pay attention to max input voltage and min output voltage, you must put the driver in Boost converter in all the combination of input voltage/output voltage/output current.

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TPS61169: May we have LED driver ic that support up to 400mA~500mA for one cell battery?