M54124L Description
The M54124L is a semiconductor integrated circuit consisting of an amplifier for a high-speed earth-leakage circuit breaker.
M54124L Key Features
- +80°C)
- When an earth leakage current appears on the primary side of zero-current transformer ZCT, leakage signal voltage VIN ap
- In the half cycle when VIN is negative, capacitor CMA connected to pin MA charges until V IN reaches the trip voltage VT
- During tCO, the same operation takes place again at capacitor CMB, causing one-shot multivibrator B to trigger current