SMH4811A(2000) 데이터 시트보기 (PDF) - Summit Microelectronics

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SMH4811A
(Rev.:2000)

Distributed Power Hot-Swap Controller

Summit Microelectronics 

SUMMIT

MICROELECTRONICS, Inc.

Distributed Power Hot-Swap Controller

SMH4811A

FEATURES

l Supply Range ±20VDC to >±500VDC

l Versatile Card Insertion Detection Supports:

w Multi-length Pin Systems

w Card Injector Switch Sensing

l Control Powering-on of DC/DC Converters

l Highly Programmable Host Voltage Monitoring

w Programmable Under- and Over-voltage

Detection

l Programmable Power Good Delay for enabling

the DC/DC Converter

l Programmable Circuit Breaker Function

w Programmable Over-current Filter

w Programmable Quick-Trip™ Circuit Breaker

Values

l 2.5V and 5.0V reference outputs

w Easy Expansion of External Monitor

Functions

FUNCTIONAL BLOCK DIAGRAM

VDD

DRAIN

SENSE

12VREF

ENPG

+

–

2.5VREF

5.0VREF

EN/TS

PD1#

PD2#

UV

OV

+

–

+

–

+

–

5V

12V

VSS

2.5V

FILTER

PROGRAMM-

ABLE

DELAY

PG#

VGATE

SENSE

VGATE

PROGRAMM-

ABLE

DELAY

+

–

50mV

+

Programmable

–

Quick Response

Ref. Voltage

DUTY

CYCLE

TIMER

CBSENSE

CBFAULT#

2044 BD 4.0

©SUMMIT MICROELECTRONICS, Inc., 2000 • 300 Orchard City Dr., Suite 131 • Campbell, CA 95008 • Phone 408-378-6461 • FAX 408-378-6586 • www.summitmicro.com

2044 4.1 8/1/00

Characteristics subject to change without notice

1

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