M54133GP データシートの表示（PDF） - Renesas Electronics

部品番号

コンポーネント説明

メーカー

M54133GP

Earth Leakage Current Detector

Renesas Electronics 

M54133FP/GP

5. Reset time applicable to reset timer circuit

The M54133 has reset timer circuit of VL=0.7V, VH=2.4V, and IO=7.5µA. When SCR is on, power supply path is

disconnected from leak detector circuit. As shown in illustration below, disconnection may inhibit VL from falling to

0.7V. Accordingly, reset time may get shortened. To avoid shortage, predetermine a reset time that includes extra time.

T= CX(VH-VL) = 0.33µFX(2.4-0.7) =75ms

IO

7.5µA

WAVEFORMS

AT

OFFC PIN

2.4V

WAVEFORMS

AT

SCRT PIN

0V

75ms

3.8V

0.7V

t=10ms

Note. Predetermined reset time may get shortened by t.

Rev.1.0, Sep.16.2003, page 9 of 17

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