LTC4101EG Просмотр технического описания (PDF) - Linear Technology

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производитель

LTC4101EG

Smart Battery Charger Controller

Linear Technology 

BLOCK DIAGRAM

LTC4101

VBAT

R4

100Ω

C4

0.03μF

VSET 18

C5, 0.1μF

GND

12

SYSTEM

LOAD

20μF

L1

CSP

Q2

CLP

TGATE 1

D1

Q3

R1

RCL

C9

Q1

VIN

C1, 0.1μF

BGATE 3

PGND

2

CLN

23

CLP

24

DCIN

5

INFET

4

CHGEN 6

SMBALERT 7

11-BIT

VDAC

DCIN

1.28V

OSCILLATOR

WATCHDOG

DETECT tON

1.19V

0V

– gm = 1m

EA

+

S

QR

PWM

LOGIC

100mV

gm = 1.5m

+

CL1

–

5.8V

CLP

VDD

10μA

TO HOST AND BATTERY

1.13k

54.9k

10k

SDA 8

SCL 9

16

THA

15

THB

SMBus

INTERFACE

AND CONTROL

THERMISTER

INTERFACE

+

CA1

+

BUFFERED

÷5 ITH

–+

ICMP

3k

11.67μA

3k

9k

BAT

22

RSENSE

CSP

21

CSP

VBAT

20μF

IREV

17mV

CA2

gm = 1m

1.19V

10-BIT

IDAC

1.2V

IDC

20

C8

0.068μF

ITH

19

R5, 6.04k

C6, 0.12μF

10 ACP

11 DCDIV

R11

VIN

R10

C7

0.0015μF

17 VDD TO SMBUS

POWER SUPPLY

LIMIT

DECODER

13 ILIM

14 VLIM

RVLIM

RILIM

Figure 2.

4101fa

9

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