参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 51/158页
文件大小: 0K
描述: IC PMU POWER/AUDIO 124-CTBGA
标准包装: 2,500
应用: 便携式设备
电流 - 电源: 7mA
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 124-TFBGA
供应商设备封装: 124-CTBGA(8x8)
包装: 带卷 (TR)
AS3658
Data Sheet Confidential
- Detailed Description-Power Management Functions
Table 41. USB-Charger Bit definitions
USB Charger control
Addr: 10
This register controls the mode of the USB charger, and the charger state
machine
Bit
Bit Name
Default Access
Description
Overtemperature protection of battery switch
5
dis_batsw_tmp_prot
ROM
R/W
0
enabled. (If battery switch is in current
source mode, charging is stopped if chip
temperature exceeds 110oC)
1
0
Overtemperature protection of battery switch
disabled
Normal battery charger operation (usb
charger and/or step down charger)
6
no_charging
ROM
R/W
1
USB and Step down charger is supplying
VSUPPLY, but battery switch is open.
USB charger or external charger regulate to
V chlimit
0
External battery switch disabled (Pin
BAT_SW= VSUPPLY,V BAT )
7
ext_batsw_en
ROM
R/W
1
External battery switch enabled (Pin
BAT_SW=0V, if status bits batsw_on=1 and
batsw_mode=1. These bits are controlled by
the charger state machine)
Table 42. Charger status Bit definitions
Addr:100
Charger status_usb
These bits show the status of the USB charger
Bit
0
1
4
Bit Name
USB_ChDet
USB_Chact
Ch_overvoltage
Default
NA
NA
NA
Access
R
R
R
Description
set to 1 if charger is detected
Set to 1 if charger is active
Set to 1 if overvoltage on pin VCHARGER is applied
Charger Detection:
The Charger will be detected by comparison of the V_USB voltage with the Vsupply voltage.
If V_USB is 50mV higher than VSupply voltage or V_USB > 4.3V or the USB_ChDet is set to 1.
Table 43. USB Charger Characteristics,VUSB=4.3…5.5V; Tamb=–20…+85°C; unless otherwise specified.
Symbol
I usbcurrent500mA
I usbcurrent100A
Parameter
USBcurrent for 500mA
selection
USBcurrent for 100mA
selection
Min
440
84
Typ
470
95
Min
500
104
Unit
mA
mA
Note
Resistor on pin RBias to ground of
220k Ω
Resistor on pin RBias to ground of
220k Ω
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