REAR56957A
REAR56957A is Voltage Detecting / System Resetting IC manufactured by Renesas.
Description
REAR56957A,B are semiconductor integrated circuits for resetting of all types of logic circuit such as CPUs, and have 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 ≈ 100ms, at 0.33μF)
- Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage):
0.6V (Typ.) at RL = 22kΩ
- Wide supply voltage range: 2V to 17V
- Wide application range
Ordering Information
Package Type Part Name Product Type Quality Level Outline
REAR56957AGSM
SOP Normal Quality Level
REAR56957BGSM
Unit : mm
6.5 5.2
R03DS0170EJ0100 Rev.1.00 2021.10.4
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REAR56957A,BG
Pin Arrangement
NC 1 Input 2
8 NC 7 Power-supply
NC 3
6 Output
GND 4
5 Delay capacitor
(Top view) NC: No Connection
Block Diagram
Input
Powersupply
5μA Typ
- + 1.25V
A: Built-in Load B: Open Collector
25μA Typ
- Output
Operating Waveform
GND Delay capacitor
1.25...