MC3423D ON Semiconductor, MC3423D Datasheet

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MC3423D

Manufacturer Part Number
MC3423D
Description
IC SENSOR UNDERVOLTAGE 8SOIC
Manufacturer
ON Semiconductor
Series
MC3423r
Datasheet

Specifications of MC3423D

Technology
Mixed Technology
Number Of Circuits
2
Applications
General Purpose
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power (watts)
-
Voltage - Working
-
Voltage - Clamping
-
Other names
MC3423DOS

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MC3423
Overvoltage Crowbar
Sensing Circuit
electronic circuitry from overvoltage transients or regulator failures
when used in conjunction with an external “crowbar” SCR. The
device senses the overvoltage condition and quickly “crowbars” or
short circuits the supply, forcing the supply into current limiting or
opening the fuse or circuit breaker.
be programmed for minimum duration of overvoltage condition
before tripping, thus supplying noise immunity.
can be used with either positive or negative supplies.
Features
March, 2005 − Rev. 5
MAXIMUM RATINGS
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits
are exceeded, device functional operation is not implied, damage may occur
and reliability may be affected.
Differential Power Supply Voltage
Sense Voltage (1)
Sense Voltage (2)
Remote Activation Input Voltage
Output Current
Operating Ambient Temperature Range
Operating Junction Temperature
Storage Temperature Range
V
This overvoltage protection circuit (OVP) protects sensitive
The protection voltage threshold is adjustable and the MC3423 can
The MC3423 is essentially a “two terminal” system, therefore it
Pb−Free Package is Available
in
Semiconductor Components Industries, LLC, 2005
Current
Limited
Supply
Power
DC
Rating
Figure 1. Simplified Application
C
out
+
MC3423
V
O. V. P.
Symbol
V
V
CC
Sense1
Sense2
V
T
T
T
I
−V
act
stg
O
A
J
EE
−65 to +150
0 to +70
Value
300
125
6.5
6.5
7.0
40
1
Unit
Vdc
Vdc
Vdc
Vdc
mA
C
C
C
V
out
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
8
8
1
Sense 1
Sense 2
1
Current
Source
ORDERING INFORMATION
MC3423P1 = Device Code
A
WL
YY
WW
V
CC
PLASTIC PACKAGE
PLASTIC PACKAGE
3423
A
L
Y
W
PIN CONNECTIONS
http://onsemi.com
1
2
3
4
P1 SUFFIX
CASE 626
CASE 751
D SUFFIX
SOIC−8
PDIP−8
= Device Code
(Top View)
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Assembly Location
= Wafer Lot
= Year
= Work Week
Publication Order Number:
8
7
6
5
DIAGRAMS
8
1
MARKING
Drive
Output
V
Indicator
Output
Remote
Activation
MC3423P1
EE
ALYW
MC3423/D
3423
YYWW
AWL

Related parts for MC3423D

MC3423D Summary of contents

Page 1

MC3423 Overvoltage Crowbar Sensing Circuit This overvoltage protection circuit (OVP) protects sensitive electronic circuitry from overvoltage transients or regulator failures when used in conjunction with an external “crowbar” SCR. The device senses the overvoltage condition and quickly “crowbars” or short ...

Page 2

ELECTRICAL CHARACTERISTICS (5.0 V Characteristics Supply Voltage Range Output Voltage (I = 100 mA) O Indicator Output Voltage (I = 1.6 mA) O(Ind) Sense Trip Voltage ( Temperature Coefficient of V (Figure 2) Sense1 Remote Activation ...

Page 3

F1 (+ Sense Lead) R1 Power 2 MC3423 Supply Figure 4. Basic Circuit Configuration R S Power 1N4740 Supply 10V + 10mF 15V Figure 5. Circuit Configuration for Supply Voltage Above ...

Page 4

Basic Circuit Configuration The basic circuit configuration of the MC3423 OVP is shown in Figure 3 for supply voltages from 4 and in Figure 4 for trip voltages above 36 V. The threshold or trip voltage ...

Page 5

Power 6 Supply # Power 5 Supply #2 7 Figure 8. Circuit Configuration for Activating One MC3423 from Another Note that both supplies have their negative output leads tied together (i.e., both are positive supplies). If ...

Page 6

Power C out Supply Power C out Sense Supply *Needed if supply not current limited Figure 12. Typical Crowbar OVP Circuit Configurations Surge Due to ...

Page 7

... ORDERING INFORMATION Device Operating Temperature Range MC3423D MC3423DG MC3423DR2 +70 C MC3423DR2G A MC3423P1 MC3423P1G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. MC3423 Package SOIC−8 SOIC−8 (Pb− ...

Page 8

F −A− NOTE 2 C −T− N SEATING PLANE 0.13 (0.005) M MC3423 PACKAGE DIMENSIONS PDIP−8 P1 SUFFIX CASE 626−05 ISSUE http://onsemi.com ...

Page 9

... G C SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. MC3423 SOIC−8 D SUFFIX CASE 751−07 ISSUE 0.10 (0.004 SOLDERING FOOTPRINT* 1 ...

Page 10

... Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com MC3423 N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 10 ON Semiconductor Website: http://onsemi ...

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