AS3606 datasheet(30/71 Pages) AMSCO

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AS3606 AS3607 2v2

Data Sheet - D e t a i l e d D e s c r i p t i o n - S Y S T E M F u n c t i o n s

9.5 10-Bit ADC

This general purpose ADC can be used for measuring several voltages and currents to perform functions like battery monitor, temperature

supervision, button press detection, etc.

9.5.1 Input Sources

9.5.2 Parameter

VDD27=2.7, TA= 25ºC, unless otherwise specified.

Table 12. ADC10 Input Sources

Source

Range

LSB

Description

VSUP

5.120V

5mV

check main system supply voltage

GPIO3

5.120V

5mV

GPIO4

5.120V

5mV

VBATSW

5.120V

5mV

check battery voltage of 4V Li-Ion accumulator

VUSB

5.120V

5mV

check USB/charger input voltage

5.120V

5mV

Source defined by DC_TEST in register 18h

BATTEMP

2.048V

2mV

check battery charging temperature

GPIO1

5.120V

5mV

GPIO2

5.120V

5mV

PWRUP

5.120V

5mV

2mV

reserved

2mV

reserved

VBE_1µA

1.024

1mV

measuring basis-emitter voltage of temperature sense transistor;

Tj = (674 - ADC10<9:0>) / 2

VBE_2µA

1.024

1mV

measuring basis-emitter voltage of temperature sense transistor;

Tj = (694 - ADC10<9:0>) / 2

1mV

reserved

1mV

reserved

Table 13. ADC10 Parameter

Symbol

Parameter

Condition

Min

Typ

Max

Unit

ADCFS

ADC Full Scale Range

2.16

TCON

Conversion Time

-34

µs

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