AS3606 Datasheet, PDF (30/71 Pages) ams AG – System PMU with HV Back Light Driver

AS3606 AS3607 2v2
Data Sheet - Detailed Description - SYSTEM Functions
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
Table 12. ADC10 Input Sources
#
Source
0
VSUP
lid ¹
GPIO3
2
GPIO4
3
VBATSW
a ₄
VUSB
v ⁵
6
BATTEMP
ill ⁷
GPIO1
8
GPIO2
t ₉
PWRUP
G _s A
B
A ^t _C
VBE_1µA
Range
5.120V
5.120V
5.120V
5.120V
5.120V
5.120V
2.048V
5.120V
5.120V
5.120V
1.024
s ⁿ _D
VBE_2µA
m ^{te E}
F
1.024
a ⁿ _{9.5.2 Parameter}
o _{VDD27=2.7, TA= 25ºC, unless otherwise specified.}
Table 13. ADC10 Parameter
c _Symbol
Parameter
l _ADCFS
Technica ^TCON
ADC Full Scale Range
Conversion Time
LSB
Description
5mV
check main system supply voltage
5mV
5mV
5mV
check battery voltage of 4V Li-Ion accumulator
5mV
check USB/charger input voltage
5mV
Source defined by DC_TEST in register 18h
2mV
check battery charging temperature
5mV
5mV
5mV
2mV
reserved
2mV
reserved
1mV
measuring basis-emitter voltage of temperature sense transistor;
Tj = (674 - ADC10<9:0>) / 2
1mV
measuring basis-emitter voltage of temperature sense transistor;
Tj = (694 - ADC10<9:0>) / 2
1mV
reserved
1mV
reserved
Condition
Min
Typ
Max Unit
2.16
V
-
34
50
µs
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