LTC4255

16

4255f

PART NUMBER

DESCRIPTION

COMMENTS

LTC1694

Active Pull-Up Improves Rise Time, Ensures Data Integrity

LT4250

Negative Voltage Hot Swap Controller in SO-8

Active Current Limiting, Supplies from –20V to –80V

LTC4251

Negative Voltage Hot Swap Controller in SOT-23

Active Current Limiting, Floating Supplies from –15V

LTC4300-1/LTC4300-2 Hot Swappable 2-Wire Bus Buffer

Isolates SDA, SCL Lines from Output/Allows 3.3V to 5V Level Translation

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

©LINEAR TECHNOLOGY CORPORATION 2002

LT/TP 0203 2K • PRINTED IN USA

RELATED PARTS

TYPICAL APPLICATIO

Typical Application Using Schottky Diodes to Protect FETs

0.33

Ω

0.33

Ω

0.33

Ω

0.33

Ω

Q1

Q2

Q3

Q4

12V

0.1

µF

–48V

4255 TA01

100k

100k

100k

100k

SCL

SDA

FAULT

AD0

AD1

AD2

AD3

AD4

DGND AGND

SENSE1 GATE1

OUT1 SENSE2 GATE2

OUT2 SENSE3 GATE3

OUT3 SENSE4 GATE4 OUT4

RELAY1

RELAY2

RELAY3

RELAY4

LTC4255

0.1

µF

Q1, Q2, Q3, Q4: FDC3612 (FAIRCHILD)

SCHOTTKY DIODES: MBRS1100T3 (ON SEMI)

RELAYS: V23079 SERIES (TYCO/POTTER AND BRUMFIELD)