AXP209 datasheet(30/45 Pages) ETC2

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AXP209

Enhanced single Cell Li-Battery and Power System Management IC

5D [3: 0]

VBUS Current ADC Data Low 4 Bit

5E [7: 0]

AXP209 Internal temperature monitoring ADC Data High 8 Bit

5F [3: 0]

AXP209 Internal temperature monitoring ADC Data Low 4 Bit

62 [7: 0]

TS Input ADC Data High 8 Bit, the default monitor battery

temperature

63 [3: 0]

TS Input ADC Data Low 4 Bit, the default monitor battery

temperature

64 [7: 0]

GPIO0 Voltage ADC Data High 8 Bit

65 [3: 0]

GPIO0 Voltage ADC Data Low 4 Bit

66 [7: 0]

GPIO1 Voltage ADC Data High 8 Bit

67 [3: 0]

GPIO1 Voltage ADC Data Low 4 Bit

70 [7: 0]

High instantaneous power battery 8 Bit

71 [7: 0]

Instantaneous power in the battery 8 Bit

72 [7: 0]

Instantaneous battery power is low 8 Bit

78 [7: 0]

Battery voltage is high 8 Bit

79 [3: 0]

Battery voltage is low 4 Bit

7A [7: 0]

Battery charge current high 8 Bit

7B [3: 0]

Battery charge current low 4 Bit

7C [7: 0]

Battery discharge current high 8 Bit

7D [4: 0]

Battery discharge current low 5 Bit

7E [7: 0]

System IPSOUT High Voltage 8 Bit

7F [3: 0]

System IPSOUT Voltage Low 4 Bit

Note: The battery-powered power calculation method

Pbat = 2 * Register values * Voltage LSB * Current LSB / 1000.

Where the voltage LSB is 1.1mV; Current LSB is 0.5mA, Calculated in units of mW.

Address

R / W

Default

value

Coulomb charging the battery meter data

R / W

00H

Coulomb charging the battery meter data

R / W

00H

Coulomb charging the battery meter data register[15:

R / W

00H

Coulomb charging the battery meter data register[7: 0]

R / W

00H

Coulomb gauge battery discharge data register[31:24]

R / W

00H

Coulomb gauge battery discharge data register[23:16]

R / W

00H

Coulomb gauge battery discharge data register[15: 8]

R / W

00H

Coulomb gauge battery discharge data register[7: 0]

R / W

00H

Coulomb gauge and encryption module control register

R / W

00H

Power measurement result register

R / W

00H

Coulomb calculation method:

C= 65536 * current LSB *（charge coulomb counter value - discharge coulomb counter value） /

3600 / ADC sample rate.

Refer to REG84H setting for ADC sample rate；the current LSB is 0.5mA；unit of the calculation

result is mAh.

Confidential

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