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SG1543J - Microsemi Corporation - POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT

Categories Integrated Circuit Chip
Place of Origin: PHILIPPINE
Brand Name: Microsemi Corporation
Certification: Lead free / RoHS Compliant
Model Number: SG1543J
MOQ: 50
Price: Contact for Sample
Packaging Details: Contact for Sample
Delivery Time: Within 3days
Payment Terms: T/T in advance, Paypal, Western Union
Supply Ability: 5000
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SG1543J - Microsemi Corporation - POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT

Quick Detail:


POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT


Description:


This monolithic integrated circuit contains all the functions necessary to monitor and control the output of a sophisticated power supply system. Over-voltage (O.V.) sensing with provision to trigger an external SCR “crowbar” shutdown; an under-voltage (U.V.) circuit which can be used to monitor either the output or to sample the input line voltage; and a third op amp/comparator usable for current sensing (C.L.) are all included in this IC, together with an independent, accurate reference generator.

Both over and under-voltage sensing circuits can be externally programmed for minimum time duration of fault before triggering. All functions contain open collector outputs which can be used independently or wire-ORed together; and although the SCR trigger is directly connected only to the over-voltage sensing circuit, it may be optionally activated by any of the other outputs, or from an external signal. The O.V. circuit also includes an optional latch and external reset capability.

The current sense circuit may be used with external compensation as a linear amplifier or as a high gain comparator. Although nominally set for zero input offset, a fixed threshold may be added with an external resistor. Instead of current limiting, this circuit may also be used as an additional voltage monitor.

The reference generator circuit is internally trimmed to eliminate the need for external potentiometers and the entire circuit may be powered directly from either the output being monitored or from a separate bias voltage.


Applications:


• Over-voltage, under-voltage, and current sensing circuits all included

• Reference voltage trimmed to 1% accuracy

• SCR "Crowbar" drive of 300mA

• Programmable time delays

• Open-collector outputs and remote activation capability

• Total standby current less than 10mA


Specifications:


part no.

SG1543J

Manufacturer

Microsemi Corporation

supply ability

10000

datecode

10+

package

plcc

remark

new and original stock


Competitive Advantage:


Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .


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