LT3651-4.2 Datasheet, PDF (19/22 Pages) Linear Technology – Monolithic 4A High Voltage Li-Ion Battery Charger

TYPICAL APPLICATIONS
7.5V to 32V 4A Charger with Approximately Constant Input Power
SBM540
V_IN
8.2V
180k
20k
6.2V
180k
R_SENSE
50mΩ
CLP
CLN V_IN
SHDN
SW
ACPR
FAULT
CHRG
BOOST
LT3651-4.2
SENSE
RT
R_T
54.9k
TIMER
BAT
NTC
I_LIM RNG/SS GND
0.1µF 22k
TO
SYSTEM
C_{IN LOAD}
22µF
1µF
1N5819
3.3µH
R_SENSE
24mΩ
C_BAT +
100µF
BATTERY
365142 TA05a
LT3651-4.2
Input Power vs V_IN
25
24
23
22
21
20
19
18
17
16
15
5
10 15 20 25
V_IN (V)
30 35
365142 TA05b
365142fa
19