Datasheet

LTC4155
49
4155fc
Dual-Input Over/Undervoltage Protection with 100mA USB Default Current Limit
TYPICAL APPLICATIONS
7
R2
3.6k
R1
47k
11
8
4
3
1, 2, 28
3
10
5 6 29 12 18
4155 TA05
15
14
R8
499
C1
0.047µF
9
23, 24, 25
R3 5M
R4 5M
R6 47k
R5 3.6k
MN1B
MN2B
C3 10µF
MN1A
MN2A
Q1A
Q1B
R7
1.21k
R9
100k
C2
22µF
TO
SYSTEM
LOAD
Q2A
Q2B
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
2.4A
LIMIT
L1: COILCRAFT XFL4020-102ME
MN1, MN2: FAIRCHILD FDMC8030
MP1: VISHAY Si5481DU-T1-GE3
Q1, Q2: DIODES/ZETEX MMDT3904-7-F