参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 63/158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 53. DeltaChargerLSB bit definitions
DeltaChargeLSB
Addr:102
These bits represent the LSB value of the fuel gauge Delta charge
register
Bit
Bit Name
Default
Access
Description
The register is maintained in two’s complement format
7:0
DeltaChargeLSB
(00)h
R
with a resolution of 3.05μVh and a full-scale value of
±99.98mVh. When using a 50m Ω current sense resistor
this is equivalent to a resolution of 61.03μAh and a full-
scale value of 1.999Ah. Sign is set for negative values.
Register will be updated after setting bit UpdReq to “1”.
Table 54. ElapsedTimeMSB bit definitions
ElapsedTimeMSB
Addr:103
These bits represent the MSB value of the fuel gauge Elapsed Time
register
Bit
Bit Name
Default Access
Description
The elapsed time count is stored in the register with a
6:0
ElapsedTimeMSB
(00)h
R
resolution of 0.8788s and a full-scale value of 15.997 hours.
Register will be updated after setting bit UpdReq to “1”.
7
sign
0
R
Sign bit of the elapsed time register
Table 55. ElapsedTimeLSB bit definitions
ElapsedTimeLSB
Addr:104
These bits represent the LSB value of the fuel gauge Elapsed Time
register
Bit
Bit Name
Default Access
Description
The elapsed time count is stored in the register with a
7:0
ElapsedTimeLSB
(00)h
R
resolution of 0.8788s and a full-scale value of 15.997 hours.
Register will be updated after setting bit UpdReq to “1”.
8.9.3 Charger Operation
The charger controls the battery current through the internal transistor between VSUP_SW1,2 and VBAT_SW1,2, the
step down charger and the battery switch between VSUPPLY and V BAT .
Charge Current Regulator
The regulator is programmed by setting TrickleCurrent and ConstantCurrent in the ChargerCurrent register and yields
a resolution of 0.625mV or 12.5mA when using a sense resistor of 50m Ω .
Table 56. Charge Current Regulator parameters
Symbol
t MEAS
I MEAS,LSB
Parameter
Measurement period
Min
Typ
68.65
0.625
Max
Unit
ms
mV
Note
f clk_int = 2.2MHz
www.austriamicrosystems.com
Revision 1v13
62 - 157
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