参数资料
型号: AS3658-BCTP
厂商: ams
文件页数: 87/158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
Make the connections of the external capacitors as short as possible.
Table 85. Charge Pump Characteristics
Symbol
V CPIN
f IN
I CPOUT
V CPOUT
V CPSKIP
I CP_noload
Parameter
Charge Pump input
voltage
Switching frequency
Output Current
Output Voltage
Output Voltage during
pulseskip
Supply current without
load
Min
3.0
0.0
4.9
Typ
1.1
0.55
5.2
4.92
2
Max
5.5
100
5.6
Unit
V
MHz
MHz
mA
V
V
mA
Note
cp_freq=0, f clk_int =2.2MHz
cp_freq=1, f clk_int =2.2MHz
VCP_IN = 3.2V, Clock = f clk_int /2;
cp_pulseskip=0; f in =1.1MHz
Use with cp_frequ=1 only
1.1MHz switching frequency
Charge pump supply
I CP_pulseskip
current without load in
20
μA
cp_pulseskip=1 and cp_frequ=1
pulseskip mode
Table 86. CP Power1 ctrl Bit definitions
Addr:23
Reg Power1 Ctrl
These bits control the on/off function of the ldo regulator
Bit
Bit Name
Default
Access
Description
Switch on of the charge pump block, charge pump is
7
cp_on
ROM
R/W
automatically activated if any of the following blocks are
active: VDIG_1, VDIG_2, VDIG_3, VDIG_4
Table 87. Charge Pump Bit definitions
Addr:17
Charge Pump Control
These bits control the Charge Pump
Bit
Bit Name
Default Access
Description
Switches on the pulseskip mode of the charge pump
0
cp_pulseskip
ROM
R/W
0
Normal fixed frequency mode
1
Pulse skip, low power mode (Set cp_frequ=1 in
this mode)
Defines the clock frequency of the step up dc/dc converter
1
cp_freq
ROM
R/W
0
f clk_int /2 (0.8 to 1.15 MHz)
1
f clk_int /4 (0.4 to 0.575 MHz)
www.austriamicrosystems.com
Revision 1v13
86 - 157
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