LTC4012-2_15 Datasheet, PDF (11/28 Pages) Linear Technology – High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control

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