Datasheet
LTC4155
48
4155fc
Single Input Over/Reverse Protection, USB Default Input Current Limit and –3°C/44°C/66°C Thermistor Thresholds
7
11
8
4
3
1, 2, 28
3
10
5 6 29 12 18
4155 TA04
15
14
R5
1k
C1
0.047µF
9
23, 24, 25
R1
5M
R3 47k
R4 3.6k
MN1B
C3
10µF
MN1A
R4
1.21k
R6
11.5k
R7
1k
C2
22µF
TO
SYSTEM
LOAD
TO µC
TO µC
WALLSNS SW
WALLGT
V
BUS
USBGT
USBSNS
CLPROG1 CLPROG2 GND PROGV
C
ID NTCBIAS
16
17
MP1
BATSNS
BATGATE
19, 20
26, 27
L1
1µH
V
OUTSNS
13
V
OUT
21, 22
CHGSNS
LTC4155
I
2
C
IRQ
OVGCAP
NTC
Q1A
Q1B
1.2A
LIMIT
L1: COILCRAFT XFL4020-102ME
MN1: FAIRCHILD FDMC8030
MP1: VISHAY Si5481DU-T1-GE3
PACK NTC: VISHAY NTCS0402E3103FLT
Q1: DIODES/ZETEX MMDT3904-7-F
TYPICAL APPLICATIONS