m51943agp Mitsumi Electronics, Corp., m51943agp Datasheet

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m51943agp

Manufacturer Part Number
m51943agp
Description
Voltage Detecting, System Resetting Ic Series
Manufacturer
Mitsumi Electronics, Corp.
Datasheet
DESCRIPTION
detecting supply voltage and resetting all types of logic circuits
such as CPUs.
They find extensive applications,including battery checking
circuits, level detecting circuit and waveform shaping circuit.
FEATURES
• Few external parts
• Detecting Voltage
• Low threshold operating voltage (Supply voltage to keep
• Wide supply voltage range
• Sudden change in power supply has minimal effect on the ICs
• Wide application range
• Extra small package (SOT-25)
APPLICATION
• Reset pulse generation for almost all logic circuits
• Battery checking, level detecting, waveform shaping circuits
• Delayed waveform generator
• Switching circuit to a back-up power supply
• DC/DC converter
• Over voltage protection circuit
M51943A are semiconductor integrated circuits designed for
RECOMMENDED OPERATING CONDITION
• Supply voltage range
low-state at low supply voltage)
BLOCK DIAGRAM
(M51943ASL:3pin SIP,M51943AML:3pin SOP,
M51943AL:5pin SIPalready Mass production)
………
…………
N.C.
3
4.25V typ. (4.05V to 4.45V)
…………
2 to 17V
0.6V(TYP.) at R
VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES
(GND)
SUB
2 to 17V
2
SUPPLY VOLTAGE
1.25V
GND
L
4
1
=22k
(
1
/ 3 )
This product is under the development, therefore the
technical specifications may be changed in the future.
25µA
PIN CONFIGURATION (TOP VIEW)
typ.
MITSUBISHI Dig./Ana.INTERFACE
(GND)
GND
SUB
N.C.
M51943AGP
1
2
3
Outline SOT-25
5 OUTPUT
N.C. :NO CONNECTION
N.C. :NO CONNECTION
5
4
SUPPLY
OUTPUT
VOLTAGE
1998-3-5

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m51943agp Summary of contents

Page 1

... PIN CONFIGURATION (TOP VIEW) … 0.6V(TYP =22k 17V 2 to 17V SUPPLY VOLTAGE 4 25µA typ. 1.25V 2 1 SUB GND (GND M51943AGP 1 5 OUTPUT GND 2 SUB (GND) SUPPLY 3 4 N.C. VOLTAGE Outline SOT-25 N.C. :NO CONNECTION 5 OUTPUT N.C. :NO CONNECTION 1998-3-5 ...

Page 2

... CC R =2.2k ,Vsat 0.4V Minimum supply voltage L for IC operation R =100k ,Vsat 0. =5V,V =1/2Vcc CC O Response time when Vcc changes Response time when Vcc changes M51943AGP Ratings Unit Vcc mW 200 2 mW/°C -30 to +85 °C -40 to +125 °C Limits Unit ...

Page 3

... Example of application circuit Reset Circuit of M51943AGP SUPPLY VOLTAGE M51943A SUB GND Note 1. This IC can be used whether a pull-up resistor is included in the logic circuit or not. Note 2. The logic circuit preferably should not have a pull-down resistor,but if one is prese- nt,add load resistor R to overcome the pull- L down resistor ...

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