BQ34Z100-G1: Sink current for using 4 LED's

Senbagavalli Ravichandran

Prodigy 120 points

Part Number: BQ34Z100-G1

Can we directly configure and use the LED's from IC itself? or dose it need FET to be driven?

over 4 years ago

0 Wyatt Keller over 4 years ago

TI__Guru** 105590 points

Hello,

The gauge has internal FETs to control the LED pins, if you want more than 4 LEDs you can reference the EVM schematic for how to configure it using shift registers.

Sincerely,

Wyatt Keller

0 Senbagavalli Ravichandran over 4 years ago in reply to Wyatt Keller

Prodigy 120 points

Thank you for the replay, as per the schematics suggested they are using mosfet on P1 and P2 and p3 and P4 are directly connected to LED's (this is in case of 4 LED configuration)

0 Wyatt Keller over 4 years ago in reply to Senbagavalli Ravichandran

TI__Guru** 105590 points

Hello,

Yes I would follow the EVM design as reference.

Sincerely,

Wyatt Keller

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BQ34Z100-G1: Sink current for using 4 LED's