Datasheet

LTC4088
21
4088fb
Typical applicaTions
High Efficiency Battery Charger/USB Power Manager
with NTC Qualified Charging and Reverse Input Protection
USB Compliant Switching Charger
+
V
BUS
Li-Ion
V
OUT
C1
10µF
0805
WALL
USB
M2
C2
0.1µF
0603
C3
10µF
0805
L1
3.3µH
M1
LOAD
R3
2.94k
R5
8.2Ω
R1
100k
R2
100k
R4
499Ω
C1, C3: MURATA GRM21BR61A106KE19
C2: MURATA GRM188R71C104KA01
L1: COILCRAFT LPS4018-332MLC
M1, M2: SILICONIX Si2333
R2: VISHAY-DALE NTHS0603N01N1003
4088 TA02
µC
CLPROG PROG
LTC4088
C/X GND
SW
D0
D1
D2
CHRG
NTC
LDO3V3
GATE
BAT
T
+
V
BUS
Li-Ion
V
OUT
C1
10µF
0805
WALL
USB
C2
0.1µF
0603
C3
10µF
0805
L1
3.3µH
LOAD
R3
2.94k
R5
8.2Ω
R1
100k
R2
100k
R4
499Ω
C1, C3: MURATA GRM21BR61A106KE19
C2: MURATA GRM188R71C104KA01
L1: COILCRAFT LPS4018-332MLC
R2: VISHAY-DALE NTHS0603N01N1003
4088 TA03a
µC
CLPROG PROG
LTC4088
C/X GND
SW
D0
D1
D2
CHRG
NTC
LDO3V3
GATE
BAT
T
BATTERY VOLTAGE (V)
2.7
500
600
I
BAT
I
BUS
700
3.9
4088 TA03b
400
300
3.0 3.3 3.6 4.2
200
100
0
CHARGE CURRENT (mA)
5x USB SETTING,
BATTERY CHARGER SET FOR 1A