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STW4102 数据表(PDF) 27 Page - STMicroelectronics

部件名 STW4102
功能描述  Dual USB/wall adapter Li-ion battery charger with gas gauge
PDF  34 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STW4102 数据表(HTML) 27 Page - STMicroelectronics

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I2C interface
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Table 19.
REG_CHG0. address 0 (00h)
Name
Pos.
Type
Power-
up
Description
CHARGERUN
0
R
0
0: Charge is below 10% of fast charge current.
1: Charge is above 10% of fast charge current.
MAINDETECT
1
R
0
Main input voltage detection.
USBDETECT
2
R
0
USB input voltage detection.
VCHG
[4,3]
R/W
00
Charge voltage
00=4.1V, 01=4.2V, 10=4.3V, 11=4.35V.
SEL_DC_USB
5
R/W
0
Wall adapter/USB selection for MAIN input
0: charge current set by Rset resistor
1: charge current set by USB_ICHG bits
USB_ICHG
[7,6]
R/W
00
USB charge current
00=60mA, 01=200mA, 10=400mA, 11=off.
Table 20.
REG_CHG1. address 1 (01h)
Name
Pos.
Type
Power-
up
Description
CHG_ENA
0
R/W
1
0: Charger disabled.
1: Charger enabled.
Reserved
[3,1]
R/W
0
Reserved bits, to be set to zero.
FORCECHARGER
UN
4R/W
0
0: no effect.
1: force EOCHG low independently of charge
state.
SEL_IS
5
R/W
0
0: Internal supply from Main or USB input when
available and charge enabled.
1: Internal supply always from Battery.
Unused
[7,6]
R/W
Table 21.
REG_WDOG. address 2 (02h)
Name
Pos.
Type
Power-
up
Description
WDOG_EN
0
R/W
1
0: Watchdog disabled.
1: Watchdog enabled.
WDOG_TIME
[2,1]
R/W
00
00=1 minute, 01=15 minutes, 10=30 minutes,
11=60 minutes.
WDOG_RST
3
R/W
0
0: No effect.
1: Reset watchdog. Bit clear after watchdog reset.
Reserved
[5,4]
R/W
0
Reserved bits, to be set to zero
WDOG_INT
6
R
x
1: Watchdog is elapsed.
Unused
7
R/W



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