LTC4012_15 Datasheet, PDF (10/28 Pages) Linear Technology – High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control

LTC4012/
LTC4012-1/LTC4012-2
Block Diagram (LTC4012)
DCIN
4
INFET
3
IF
CLP
2
CLN
1
ICL
8
CHRG
7
9 ^VFB
C/10
DETECTION
6 ^SHDN
5 ^ACP
SHUTDOWN
CONTROL
SHUTDOWN
TO
INTERNAL
CIRCUITS
BAT
11
OSCILLATOR
FBDIV
10
INPUT
CURRENT
LIMIT
FAULT
DETECTION
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)
21
4012 BD01
4012fa
10