M51951A,B/M51952A,B
Voltage Detecting, System Resetting IC Series
REJ03D0775-0400
Rev.4.00
Sep 18, 2007
Description
M51951A,B/M51952A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all
types of logic circuits such as CPUs.
They include a built-in delay circuit to provide a retardation time (200
µs
Typ).
They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping
circuit.
Features
•
Few external parts
•
Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage):
0.6 V (Typ) at R
L
= 22 kΩ
•
Wide supply voltage range: 2 V to 17 V
•
Wide application range
Application
•
Reset circuit of Pch, Nch, CMOS, microcomputer, CPU and MCU, Reset of logic circuit, Battery check circuit,
switching circuit back-up voltage, level detecting circuit, waveform shaping circuit, delay waveform generating
circuit, DC/DC converter, over voltage protection circuit
Recommended Operating Condition
•
Supply voltage range: 2 V to 17 V
Pin Arrangement
M51951AL/BL
M51952AL/BL
5 Output
4 NC
3 GND
1 Supply voltage
2 NC
1 Supply voltage
(Top view)
Package: 5P5T
(Top view)
Package: PLZZ0004CB-A (SOT-89)
M51951AML/BML
M51952AML/BML
3 Output
2 GND
M51951ASL/BSL
M51952ASL/BSL
1. Supply voltage
2. GND
1
3. Output
2
3
(Top view)
Package: PRSS0003DF-A (TO-92L)
REJ03D0775-0400 Rev.4.00 Sep 18, 2007
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RENESAS [ RENESAS TECHNOLOGY CORP ]
