参数资料
型号: AS3658D-BCTP
厂商: ams
文件页数: 41/158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 34. Backup Battery Charger Register
Addr: 38
Backup Battery Charger
This register controls the Backup battery charger mode
Bit
Bit Name
Default Access
Description
This value determines the maximum charging voltage
V BBC .
5
BBCVolt
0
R/W
0
V BBC =2.5V
1
V BBC =3.0V
6
BBCPwrSave
1
R/W
0
Normal operation of the backup battery charger
The backup battery charger checks if it is actually
charging the battery (bit BUChAct=’1’) and it is
disabled if it is not. Every 10s (every 64s in state
1
“Off”) the voltage of the backup battery is checked
again to determine if charging is required. This
practically reduces the current consumption to 0 if
the backup battery is full.
7
-
-
reserved
Figure 11. Backup Battery Charger Characteristics
I BACK
400μA
200μA
100μA
50μA
Rb=0N
V back_lim- V Delta
Rb=0FF
V BACK
V back_lim
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