AXP209 datasheet(38/45 Pages) ETC2

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AXP209

Enhanced single Cell Li-Battery and Power System Management IC

Battery voltage ADC Enable

0:Disable, 1:Enable

Battery current ADC Enable

ACIN Voltage ADC Enable

ACIN Current ADC Enable

VBUS Voltage ADC Enable

VBUS Current ADC Enable

APS Voltage ADC Enable

TS Pin ADC Function is enabled

10.27 REG 83H: ADC Enable 2

The default value: 80H

Bit

Description

R / W

Default

value

AXP209 Internal temperature

monitoring ADC Enable

0:Disable, 1:Enable

6-4

Reserved, can not be changed

GPIO0 ADC Function is enabled

0:Disable, 1:Enable

GPIO1 ADC Function is enabled

1-0

Reserved, can not be changed

10.28 REG 84H: ADC Sampling rate settings, TS Pin control

The default value: 32H

Bit

Description

R / W

Default

value

7-6

ADC Sampling rate settings

25 × 2

Sampling rates is 25, 50, 100, 200Hz

5-4

TS Pin output current setting:

00: 20uA; 01: 40uA; 10: 60uA; 11: 80uA

Reserved, can not be changed

TS Pin function select

0:Battery temperature monitoring function,1:External independent ADC

1-0

TS Current output setting

00:Disabled

01:Output current only when charging

10: Only when ADC is sampling input

11:Always enabled

10.29 REG 85H: ADC Input Range

The default value: X0H

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