BQ40Z50: 4 LED Display

Fabio Gou

Expert 4435 points

Part Number: BQ40Z50

The customer need to use BQ40z50 to drive 4 LED to display the RSOC.

The function requirement is as below.

Could you pls provide the recommending Hard Circuit design and the related parameter configuration?

over 1 year ago

0 Wyatt Keller over 1 year ago

TI__Guru** 105760 points

Hello Fabio,

There is an FAQ page on how to configure the gauge for lower LED counts than 5, you can use the EVM schematic as a guide for the hardware configuration, just remove the 5th LED. We do not support LED blinking at very low SOC, we can support mid-point blinking which gives better resolution, the only other option we would have is LEDRCA which will cause the LEDs to flash when RCA is set.

FAQ: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1167559/faq-how-do-i-configure-the-gauge-to-drive-fewer-than-5-leds

Sincerely,

Wyatt Keller

Power management

Power management forum

BQ40Z50: 4 LED Display