M54128L中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

Description

The M54128L/FP is a semiconductor integrated circuit having leakage detection and abnormal voltage detection functions for high-speed earth leakage interruption, and was developed for use in earth leakage breakers.

Features

? Lightning surge protection

Two-count method adopted

Improved dead-time performance for lightning impulses

? IEC support: 1.5 count method switching

? High input impedance

Filter circuit can be configured using external capacitor, resistor

Improved high-frequency, high harmonic superposition performance

? High input sensitivity: VT=6.5 Vrms

? Abnormal voltage detection (N open) function

Neutral line open-phase protection in single-phase three-wire designs

Function halt control (circuit current reduction)

? Low-voltage operation 7 to 12 V (versus 12 to 20 V in previous series)

Standby: 820 μA standard (VS = 9 V, Ta = 25°C)

SCR on: 740 μA standard (VS = 9 V, Ta = 25°C)

? Highly stable design

Circuit designed for minimum characteristic fluctuation with changes in power supply voltage, ambient temperature

Applications

? Earth leakage breaker