参数资料
型号: LP3918TLX-L
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 电源管理
英文描述: Battery Charge Management and Regulator Unit
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA25
封装: 2.50 X 2.50 MM, MICRO, SMD-25
文件页数: 5/30页
文件大小: 1292K
代理商: LP3918TLX-L
LDO Output Voltage Programming
The following table summarizes the supported output voltages for the LP3918. Default voltages after startup are highlighted in
bold
.
TABLE 4.
Data Code
(Reg 01 - 07)
LDO1
V
LDO2
V
VLDO3
V
LDO4
V
LDO5
V
LDO6
V
LDO7
V
8h'00
1.5
8h'01
1.8
1.8
8h'02
1.85
8h'03
2.5
8h'04
2.6
8h'05
2.7
8h'06
2.75
8h'07
2.8
8h'08
2.85
8h'09
2.9
8h'0A
2.95
8h'0B
3.0
3.0
8h'0C
3.05
8h'0D
3.1
8h'0E
3.2
8h'0F
3.3
Charger Control Register 2
Note that Bits 7,6,5 are not used and must be set to 0 during write to this register.
CHARGER CURRENT PROGRAMMING
The following table summarizes the supported charging current values for the LP3918.
Default charge current after startup is highlighted in bold
TABLE 5. LP3918 Charger Current Programming
Address
Register ID
Current Selection Prog_ICHG<4..0> Bit 0 to Bit 4
8h'11
CHGCNTL2
00000
00001
00010
00011
00100
00101
00110
50mA
100mA
150mA
200mA
250mA
300mA
350mA
Address
Register ID
Current Selection Prog_ICHG<4..0> Bit 0 to Bit 4
8h'11
CHGCNTL2
00111
01000
01001
01010
01011
01100
01101
400mA
450mA
500mA
550mA
600mA
650mA
700mA
Address
Register ID
Current Selection Prog_ICHG<4..0> Bit 0 to Bit 4
8h'11
CHGCNTL2
01110
01111
10000
10001
10010
750mA
800mA
850mA
900mA
950mA
13
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LP3918
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