BQ25616: BQ25616 charge current query

Star Xu

Genius 9645 points

Part Number: BQ25616

My customer set the register as below, but the charge current only 10mA

Bq2561xRegWr(0x00, 0x12);
Bq2561xRegWr(0x01, 0x14);
Bq2561xRegWr(0x02, 0xBF);
Bq2561xRegWr(0x03, 0x90);

How to increase the charge current?

Thanks

Star

over 4 years ago

0 Ning T over 4 years ago

TI__Guru 57651 points

Star,

Are you inquiring about the BQ25616? It is a standalone part without I2C communications.

Thanks,

Ning.

0 Star Xu over 4 years ago in reply to Ning T

TI__Genius 9645 points

Hi Ning

Sorry, the chip is BQ25619RTWR.

Thanks

Star

0 Ning T over 4 years ago in reply to Star Xu

TI__Guru 57651 points

Star,

What are your test conditions such as VBUS (voltage at VBUS pin), IVBUS, VBAT (voltage at BAT pin), IBAT, VSYS, ISYS? Could you please provide all register values of the charger when charging current is 10mA?

Thanks,

Ning.

0 Star Xu over 4 years ago in reply to Ning T

TI__Genius 9645 points

Hi Ning

Thanks for your reply.

The register value as below:

REG00,0X04

REG01,0X16

REG02,0XBF

REG03,0X60

REG04,0X40

REG05,0X8E

REG06,0X26

Thanks

Star

0 Ning T over 4 years ago in reply to Star Xu

TI__Guru 57651 points

Star,

Please also check the rest of the registers, especially REG08-RE0C and check if any abnormal charger status and faults and start debug from there.

Please refer to the video below for charger operations and valuable tips.

Battery charger system overview (training.ti.com/battery-charger-system-overview

Battery Charger Common Issues: Why my Battery is Not Charging (training.ti.com/battery-charger-common-issues-why-my-battery-not-charging

Thanks,

Ning.

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BQ25616: BQ25616 charge current query