M54133 Overview
Description
The UTC M54133 is a semiconductor integrated circuit developed for use in high-speed earth leakage breakers incorporating functions to protect against voltage surges and inverter noise.
Key Features
- * Improvement of ability against unwanted tripping by lightning-surge and lightning impulse
- Two times counting system adopted
- * Improvement of ability against unwanted tripping by inverter-noise
- Built-in operational amplifier (of low current dissipation) for active low-pass filter
- * High input sensitivity: VT=11.5mVrms Typ
- * Low-current dissipation (at RIREF=180kΩ) In stand-by condition: IS=610μA Typ
- * High stabilities design Adopt the circuits that is not affected by fluctuations of supply voltage/ambient temperature
