LT1684 查看數據表（PDF） - Linear Technology

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LT1684

Micropower Ring Tone Generator

Linear Technology 

LT1684

TYPICAL APPLICATIO

5V Input Nonisolated 5 REN Ring Generator

VIN

5V

C2

100pF

+

PWM

INPUT

C1

100pF R4

10k

–

IN B

R2

10k

IN A

C3 100pF

LT1684

COMP1 BGOUT

C4 20pF

R3

5k

COMP2 AMPIN

LIM–

V–

GATE–

GATE+

V+

LIM+

FB1

D1

1N4001

ATREF

OUT

C8

1µF

R1

2k

R5

C5

300k 4700pF

R6

3k

100V

D2

MURS160T3

T1

COILTRONICS

CTX 14468-X1

R10

+ C11

12 •

100k

0.47µF

160V

10

R8

100Ω

M1

IRF610

+ C10

0.47µF

160V

D3

MURS160T3

9 • 4, 5

7 • 1, 2

+ C12

220µF

35V

C7

6.8nF

160V

C6

6.8nF

160V

DS1

MBRS1100

DZ1

60V

MMSZ5264BT1

U1

4

SW

5

VIN

R12

LT1271

1

2

5k

VC

FB

GND

R11

3

470Ω

C9

0.1µF

R7

R9

100Ω

100k

M2

IRF9610

DS2

D1N5817

C13 0.1µF

FB1: FERRONICS FMB1601

(716) 388-1020

R16

–100V

1M

R15

12k

RING TONE

OUT

D4

LT1211

D1N4148

1

8 D5

R14

OUT A

2

VCC 7 D1N4148

1M

–IN A OUT B

3

6

+IN A –IN B

4

5

VEE

+IN B

R13

12k

1684 TA02

RELATED PARTS

PART NUMBER

LT1082

LT1166

LTC1177-5/LTC1177-12

LT1270

LT1271

LT1339

LT1676

DESCRIPTION

1A High Voltage Switching Regulator

Power Output Stage Automatic Bias System

Isolated MOSFET Drivers

8A Power Switching Regulator

4A Power Switching Regulator

High Power Synchronous DC/DC Controller

Wide Input Range, High Efficiency, Step-Down Switching Regulator

COMMENTS

VIN = 3V to 75V, SW Voltage = 100V

Sets Class AB Bias Currents, Eliminates Adjustments

and Thermal Runaway

2500VRMS Isolation, UL Recognized

VIN = 3.5V to 30V, IQ = 7mA

VIN = 3.5V to 30V, IQ = 7mA

Operation Up to 60V, Output Current Up to 50A

Operation Up to 60V, 100kHz, Up to 500mA Output

16 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900q FAX:(408)434-0507 q www.linear-tech.com

1684f LT/TP 0300 4K • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1999

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