LTC4009-2 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC4009-2

High Efficiency, Multi-Chemistry Battery Charger

Linear Technology 

Block Diagram (LTC4009)

DCIN

3

CLP

2

CLN

1

ICL

4

CHRG

8

VFB

10

INPUT

CURRENT

LIMIT

C/10

DETECTION

CC

LTC4009

LTC4009-1/LTC4009-2

BOOST AND

OV DETECTION

CA

R1

CSP

15

CSN 14

EA

PROG 13

BAT

11

9 FBDIV

DCDIV

5

ACP

7

SHDN

6

OSCILLATOR

TO

INTERNAL CIRCUITS

1.2085V

REFERENCE

CHARGE

OVERVOLTAGE

SHUTDOWN SHUTDOWN

CONTROL

TO

INTERNAL

CIRCUITS

PWM

LOGIC

TO

INTERNAL

CIRCIUTS

5V

REGULATOR

ITH 12

BOOST 20

TGATE 19

SW 18

INTVDD

17

BGATE

16

GND 21

4009 BD01

4009fd



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