参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 124/158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 - System Functions
Table 129. Charger supervision
Addr:14
Fuel Gauge
This bit controls first startup out of power on reset
Bit
Bit Name
Default
Access
Description
Switch on Power off mode at first startup(e.g. First
battery insertion or first charger insertion)
0
Startup of all regulators if battery is inserted,
charger insertion, onkey pressed or rtc alarm.
Startup of all regulators only if onkey is
pressed or rtc alarm (no startup on battery
insertion; no startup if charger detected, if
4
auto_shutdown
Boot
ROM
R/W
no_charging=0). xon_enable has to be set in
bootrom.
If a charger is detected and the bit
1
no_charging=0 (defined by BootROM) and
ch_pwroff_en=0 the AS3658 will start
charging without regulators startup (fully
autonomous charging).
If the bit no_charging=1 and a charger is
detected, the regulators are started and the
charging can be enabled with software
control.
Table 130. Fuel Gauge
Addr:15
Fuel Gauge
This bit controls first startup out of power on reset
Bit
Bit Name
Default
Access
Description
Switch on Power off mode if low Vsupply is detected
during active or standby mode (Pin XON= high and bit
xon_enable=0)
5
power_off_at_v_suplow
Boot
ROM
R/W
0
If low battery is detected, continuously monitor
battery voltage and startup if battery voltage is
above ResVoltrise
1
If low battery is detected, enter power off
mode
10.2.3 Reset Cycle
During a reset cycle the pin XRESET is forced to low for at least RES TIME and all registers are set to their default
values (except the registers marked green in the Table 186 on page 148 ). During the reset time a normal startup
happens (see Startup on page 129) , the reset is active until the reset timer (set by register bits res_timer<2:0> ) expires.
Then the voltage on the pin XRESET is pulled high by the external resistor and the whole system is leaving the reset
state.
10.2.4 Reset Control: res_con
Reset is internally generated from a power supply supervisor and provided to internal logic as well as externally
through the open-drain pad XRESET. At this point, it could be also forced externally from an external power supply
supervisor. Additionally Reset can be forced by software.
www.austriamicrosystems.com
Revision 1v13
123 - 157
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