参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 26/158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 11. Step Up DC/DC Bit definitions
Step Up2 DC/DC control
Addr: 34
This register controls the different modes of the step up2 DCDC
converter
Bit
Bit Name
Default Access
Description
DCDC converter 2 overvoltage protection to prevent
damage of external NFET, if DCDC_CURR1 or
DCDC_CURR2 or DCDC_CURR3 feedback selected, and
7
stpup2_prot
00h
RW
no LED string connected:
0
1
Overvoltage protection disabled
Switch off DCDC step up 2 if the voltage on
DCDC_FB2 exceeds 1.25V
Table 12. stpup1_det and stpup1_oc Bit definitions
Low voltage status bit definitions
Addr: 53
This register shows the status of the overcurrent protection of the
stepup1dcdc
Bit
Bit Name
Default Access
Description
Step up overcurrent status bit
6
stpup1_oc
NA
R
0
V Rsense < V OVCURRENT
1
0
V Rsense > V OVCURRENT for more than 5 msec (latched
state)
Step up detection status register
V Rsense < V DETECT for more than 1msecond, and
DCDC Step up converter is in Pulseskip for more than
7
stpup1_det
NA
R
1 millisecond
V Rsense > V DETECT for more than 1msecond, or the
1
DCDC Step up converter is not in Pulseskip for more
than 1 millisecond
8.2
Current Sinks
These are general-purpose current sinks intended to control the backlight(s), buzzer and vibrator. The low voltage
current sink has an integrated protection against over voltage and can therefore also drive inductive loads (V PROTECT ).
DCDC_CURR1 and DCDC_CURR2, DCDC_CURR3 are high voltage (15V) current sinks, e.g. for series of white
LEDs
CURR1_GPIO, CURR2_GPIO, CURR3_GPIO, CURR4_GPIO are four 5V, 38.25mA current sinks, e.g. for buzzer,
vibrator, LEDs
CURR1_GPIO, CURR2_GPIO, CURR3_GPIO, CURR4_GPIO can be used as general propose Input/Output (GPIO)
functions optional (described in section General Purpose Input / Output (CURR1_GPIO1 … CURR4_GPIO4)).
www.austriamicrosystems.com
Revision 1v13
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