LP3918TLX-A/NOPB National Semiconductor, LP3918TLX-A/NOPB Datasheet - Page 13

• Manufacturer Part Number: LP3918TLX-A/NOPB
• Description: IC PMU BATT CHRGR/REG 25USMD
• Manufacturer: National Semiconductor

Specifications of LP3918TLX-A/NOPB

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.5 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 25-UFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LP3918TLX-A

(Reg 01 - 07)
Data Code
LDO Output Voltage Programming
The following table summarizes the supported output voltages for the LP3918. Default voltages after startup are highlighted in
bold.
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
Address
Address
Address
8h'0C
8h'0D
8h'00
8h'01
8h'02
8h'03
8h'04
8h'05
8h'06
8h'07
8h'08
8h'09
8h'0A
8h'0B
8h'0E
8h'0F
8h'11
8h'11
8h'11
CHGCNTL2
CHGCNTL2
CHGCNTL2
Register ID
Register ID
Register ID
LDO1
1.85
2.75
2.85
2.95
3.05
1.5
1.8
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
V
LDO2
2.75
2.85
2.95
3.05
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
V
TABLE 5. LP3918 Charger Current Programming
400mA
750mA
00000
00111
01110
50mA
VLDO3
100mA
450mA
800mA
00001
01000
01111
2.75
2.85
2.95
3.05
2.7
2.8
2.9
3.0
V
Current Selection Prog_ICHG<4..0> Bit 0 to Bit 4
Current Selection Prog_ICHG<4..0> Bit 0 to Bit 4
Current Selection Prog_ICHG<4..0> Bit 0 to Bit 4
TABLE 4.
13
150mA
500mA
850mA
00010
01001
10000
LDO4
1.85
2.75
2.85
2.95
3.05
1.5
1.8
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
V
200mA
550mA
900mA
00011
01010
10001
LDO5
2.75
2.85
2.95
3.05
2.7
2.8
2.9
3.0
V
250mA
600mA
950mA
00100
01011
10010
LDO6
2.75
2.85
2.95
3.05
2.7
2.8
2.9
3.0
V
300mA
650mA
00101
01100
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LDO7
1.85
2.75
2.85
2.95
3.05
350mA
700mA
1.5
1.8
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
00110
01101
V