LTC4006-2 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC4006-2

4A, High Efficiency, Standalone Li-Ion Battery Charger

Linear Technology 

BLOCK DIAGRA

LTC4006

0.1µF

VIN

DCIN

1

INFET

5.8V

Q3

16

ACP/SHDN 3

ICL

1.105V

708mV

CLN

TIMER/CONTROLLER

RESTART

LOBAT

35mV

25µA

CHG 100k

2

OSCILLATOR

4 RT

RRT

TBAD

THERMISTOR

NTC 32.4k

6

0.47µF

C/10

397mV

GND

5

1.19V

5.1k

RCL 15nF

CLP

11

CLN

12

–

100mV

CL1

+

gm = 1.5mΩ

+

EA

–

gm = 1mΩ

20µF

DCIN

OSCILLATOR

WATCH DOG

DETECT tOFF

OV

1.28V

11.67µA

CA1

3k

BAT

10

RSENSE

CSP

9

3k

gm = 1mΩ

CA2

9k

1.19V

BUFFERED ITH

÷5

ITH

7

6.04k

0.12µF

VLOGIC

10k

NTC

20µF

TGATE

Q1

13

BGATE

Q2

15

PGND

14

L1

S

Q

R

PWM CHARGE

LOGIC

IREV

–+

ICMP

17mV

RIMON1

26.44k

IMON

8

4.7nF

RIMON2

52.87k

4006 BD

4006fa

7

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