LT3751EUFD datasheet(28/28 Pages) LINER

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LT3751

3751f

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

LT 1108 • PRINTED IN USA

RELATED PARTS

TYPICAL APPLICATION

300V Regulated Power Supply

PART NUMBER

DESCRIPTION

COMMENTS

LTC3225

150mA Supercapacitor Charger

VIN: 2.75V to 5.5V, Charges Two Supercapacitors in Series to 4.8V or 5.3V

LT3420/LT3420-1

1.4A/1A, Photoﬂash Capacitor Charger

with Automatic Top-Off

Charges 220μF to 320V in 3.7 Seconds from 5V, VIN: 2.2V to 16V, ISD < 1μA,

10-Lead MS Package

LT3468/LT3468-1

LT3468-2

1.4A, 1A, 0.7A, Photoﬂash Capacitor Charger

VIN: 2.5V to 16V, Charge Time: 4.6 Seconds for LT3468 (0V to 320V, 100μF,

VIN = 3.6V), ISD < 1μA, ThinSOT™ Package

LT3484-0/LT3484-1

LT3484-2

1.4A, 0.7A, 1A Photoﬂash Capacitor Charger

VIN: 1.8V to 16V, Charge Time: 4.6 Seconds for LT3484-0 (0V to 320V, 100μF,

VIN = 3.6V), ISD < 1μA, 2mm × 3mm 6-Lead DFN Package

LT3485-0/LT3485-1

LT3485-2/LT3485-3

1.4A, 0.7A, 1A, 2A Photoﬂash Capacitor

Charger with Output Voltage Monitor and

Integrated IGBT

VIN: 1.8V to 10V, Charge Time: 3.7 Seconds for LT3485-0 (0V to 320V, 100μF,

VIN = 3.6V), ISD < 1μA, 3mm × 3mm 10-Lead DFN Package

LT3585-0/LT3585-1

LT3585-2/LT3585-3

1.2A, 0.55A, 0.85A, 1.7A Photoﬂash

Capacitor Charger with Adjustable Input

Current and IGBT Drivers

VIN: 1.5V to 16V, Charge Time: 3.3 Seconds for LT3585-3 (0V to 320V, 100μF,

VIN = 3.6V), ISD < 1μA, 3mm × 2mm DFN-10 Package

LT3750

Capacitor Charger Controller

VIN: 3V to 24V, Charge Time: 300ms for (0V to 300V, 100μF) MSOP-10 Package

ThinSOT is a trademark of Linear Technology Corporation.

UVLO1

OVLO1

UVLO2

OVLO2

RDCM

RVTRANS

1:10

VOUT

300V

0mA TO 270mA

VTRANS

24V

VCC

680μF

3751 TA05

LT3751

GND

RBG

40.2k

OFF ON

5× 2.2μF

VCC

24V

10μF

•

18.2k

6mΩ

20μF

274k

VTRANS

VCC

1.13k

432k

475k

432k

MICRO

C1: 25V X5R OR X7R CERAMIC CAPACITOR

C2: 25V X5R OR X7R CERAMIC CAPACITOR

C3: 25V ELECTROLYTIC

C4: 330V RUBYCON PHOTOFLASH CAPACITOR

D1: VISHAY USIM 1000V

M1: FAIRCHILD FQP34N20L

R1 THROUGH R4: USE 1% 0805 RESISTORS

R5: USE TWO PARALLEL 5mΩ IRC LR SERIES 2512 RESISTORS

T1: SUMIDA PS07-299, 20A TRANSFORMER

CSN

DONE

FAULT

VCC

CLAMP

CHARGE

RVOUT

HVGATE

LVGATE

CSP

10nF

LT3751EUFD 数据表(PDF) 28 Page - Linear Technology

LT3751EUFD 数据表(HTML) 28 Page - Linear Technology

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