Datasheet

11
4012fa
LTC4012/
LTC4012-1/LTC4012-2
block DiagraM
(LTC4012-1/LTC4012-2)
–
–
–
+
–
+
19
EA
R1
TO INTERNAL
CIRCUITS
TO
INTERNAL
CIRCUITS
CC
–
+
CA
1.2085V
REFERENCE
5V
REGULATOR
PWM
LOGIC
Output
Voltage
Select
FAULT
DETECTION
C/10
DETECTION
SHUTDOWN
CONTROL
OSCILLATOR
BAT
FVS0
FVS1
SHUTDOWN
CHARGE
INPUT
CURRENT
LIMIT
TGATE
20
BOOST
12
ITH
13
PROG
14
CSN
15
CSP
18
SW
P
GND
(PADDLE)
4012 BD02
16
BGATE
17
INTV
DD
TO
INTERNAL
CIRCIUTS
CHRG
7
10
9
11
5
ACP
6
SHDN
ICL
8
CLP
CLN
2
1
INFET
3
DCIN
4
+
–
IF
V
FB