SG3548DW MICROSEMI, SG3548DW Datasheet

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SG3548DW

Manufacturer Part Number
SG3548DW
Description
Manufacturer
MICROSEMI
Datasheet

Specifications of SG3548DW

Voltage Supervisor Type
Voltage Monitor
Number Of Voltage Supervisors
4
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
35V
Package Type
SOIC W
Operating Temperature Classification
Commercial
Operating Temp Range
0C to 70C
Pin Count
16
Mounting
Surface Mount
Lead Free Status / Rohs Status
Compliant

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Part Number:
SG3548DW
Quantity:
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Rev 1.2a 3.19.2005
Copyright
DESCRIPTION
The SG1548 is an integrated circuit capable of monitoring up to four
positive DC supply voltages simultaneously for overvoltage and
undervoltage fault conditions. An on-chip inverting op amp also
allows monitoring one negative DC voltage. The fault tolerance
window is accurately programmable from ±5% to ±40% using a simple
divider network on the 2.5V reference. A single external capacitor sets
the fault indication delay, eliminating false outputs due to switching
noise, logic transition current spikes, and short-term AC line interrup-
tions. An additional comparator referenced to 2.5V allows the AC line
to be monitored for undervoltage conditions or for generation of a line
clock.
undervoltage lockout in a switching power supply. Uncommitted
collector and emitter outputs permit both inverting and non-inverting
operation. External availability of the precision 2.5V reference and
open-collector logic outputs permit expansion to monitor additional
voltage using available open-collector quad comparators.
BLOCK DIAGRAM
1997
The comparator can also be used for programmable
1
QUAD POWER FAULT MONITOR
FEATURES
HIGH RELIABILITY FEATURES - SG1548
Monitors four DC voltages and the AC line
Precision 2.5V ±1% low-drift reference
Fault tolerance adjustable from ±5% to ±40%
±3% trip threshold tolerance over temperature
Separate 10mA, 40V overvoltage, undervoltage
and AC line fault outputs
Fault delay programmable with a single capacitor
30mV comparator hysteresis to prevent oscilla-
tions
On-chip inverting op amp for negative voltage
Open-collector output logic or expandability
Operation from 4.5V to 40V supply
Available to MIL-STD-883
Radiation data available
LMI level "S" processing available
SG1548/SG2548/SG3548
11861 Western Avenue
Microsemi, Inc. - Integrated Products
(714) 898-8121
Garden Grove, CA 92841
FAX: (714) 893-2570

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SG3548DW Summary of contents

Page 1

... On-chip inverting op amp for negative voltage Open-collector output logic or expandability Operation from 4.5V to 40V supply HIGH RELIABILITY FEATURES - SG1548 Available to MIL-STD-883 Radiation data available LMI level "S" processing available Microsemi, Inc. - Integrated Products 11861 Western Avenue 1 Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570 ...

Page 2

ABSOLUTE MAXIMUM RATINGS Supply Voltage (+V ) .......................................................... IN Fault Output Collector Voltage ............................................ Sense Input Voltage Range ................................. Fault Output Sink Current ................................................ Line Sense Input Current ................................................. Inverting Op Amp Input Current ........................................ Note 1. Values beyond which ...

Page 3

ELECTRICAL CHARACTERISTICS Parameter Fault Delay Section Comparator Threshold Comparator Hysteresis Delay Charging Current On Saturation Voltage OFF Clamp Voltage Inverting Op Amp Section (Note 5) Input Offset Voltage Input Bias Current Output High Voltage Output Low Voltage Large Signal Voltage ...

Page 4

... SG3548J 16-PIN PLASTIC DIP SG2548N N - PACKAGE SG3548N Pb- free / RoHS Transition DC: 0503* 16-PIN WIDE BODY SG2548DW PLASTIC S.O.I.C. SG3548DW DW - PACKAGE Pb- free / RoHS Transition DC: 0516* SG1548L/883B 20-PIN CERAMIC (LCC) LEADLESS CHIP CARRIER SG1548L L- PACKAGE Note 1. Contact factory for JAN and DESC product availability. ...

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