LT1505CG-1 Ver la hoja de datos (PDF) - Linear Technology

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componentes Descripción

Lista de partido

LT1505CG-1

Constant-Current/Voltage High Efficiency Battery Charger

Linear Technology 

LT1505

BLOCK DIAGRAM (LT1505)

VIN

VCC

VCC

UV

7

VCC 24

VIN

SHDN

5

SYNC 4

CAP 12

FLAG 13

+

6.7V

–

E2

+

++

BAT

0.2V

E1

–

+

+

6.7V

E8

–

A13

E3

SHUTDOWN

GBIAS

+

7V

–

E5

+

–

4U

E4

+

+

1.3V

SHUTDOWN

–

SW

E7

A4

+

+

4V

A6

SR

8

INFET

VCC

7.8V

Q4

+

A2

+–

7V

BGATE

+

2.5V

–

A3

+

A5

A8

A7

ONE

SHOT

OSC

200k

IVA

4

PWM

IPROG

VRS1

+

0.02V

+

A12

–

SLOPE COMP

E6

+

3.3V

C1

–+

B1

R2

R3

A10

Q2

Q3

Q1

IPROG

R1

1k

IVA

VA

CA2

R8

75k

VREF

CL1*

BOOST

1

TGATE

A1

2

50k

SW

3

+

8.9V

GBIAS

26

C3

4.7µF

BGATE

A9

27

50k

PGND

28

BOOSTC

25

SPIN

22

SENSE

21

CA1

IPROG

BAT

23

BAT2

20

A11

R4

50.55k

R5

21k

VREF

2.465V

92mV

+

3CELL

16

VFB

17

R6

0.33k

R7

12.3k

14 4.1V

4.2V

15

CLP

9

CLN

10

VCC

C2

1µF

M1

L1

10µH

IBAT

+VRS1–

RS1

+

12.6V

BATTERY

M2

RS3

RS2

VIN

RS

VCC

6

AGND

18

VC

19

PROG

11

COMP1

1505 BD

SYSTEM

LOAD

CPROG

RPROG

*LT1505 ONLY. SEE PIN FUNCTIONS

FOR LT1505-1 CONNECTIONS

8

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