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M51958B 参数 Datasheet PDF下载

M51958B图片预览
型号: M51958B
PDF下载: 下载PDF文件 查看货源
内容描述: 电压检测,设备重新启动IC系列 [Voltage Detecting, System Resetting IC Series]
分类和应用:
文件页数/大小: 14 页 / 179 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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M51957A,B/M51958A,B
Voltage Detecting, System Resetting IC Series
REJ03D0778-0200
Rev.2.00
Aug 20, 2007
Description
M51957A,B/M51958A,B are semiconductor integrated circuits for resetting of all types of logic circuits such as CPUs,
and has the feature of setting the detection voltage by adding external resistance.
They include a built-in delay circuit to provide the desired retardation time simply by adding an external capacitor.
They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping
circuit.
Features
Few external parts
Large delay time with a capacitor of small capacitance (td
100 ms, at 0.33
µF)
(M51957, M51958)
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
M51957AL/BL
M51958AL/BL
5 Output
4 Delay capacitor
3 GND
NC 3
2 Input
1 Power-supply
(Top view)
Outline: 5P5T
GND 4
(Top view)
NC: No Connection
Outline: PRSP0008DE-C (recommend)
PRSP0008DA-A (8P2S-A) (not recommend for new design)
5 Delay capacitor
6 Output
NC 1
Input 2
M51957AFP/BFP
M51958AFP/BFP
8 NC
7 Power-supply
REJ03D0778-0200 Rev.2.00 Aug 20, 2007
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