D4140
Category:
Leakage Protector Circuit
key word:
Description
Typical Applications
Working current (Max)
Latching time (Ton)
Packaging form
D4140 is a low-power controller used for AC socket electrical leakage circuit breakers. These devices can detect dangerous current paths to ground, such as equipment falling into water. Before a harmful or fatal electric shock occurs, the circuit breaker will disconnect the circuit.
D4140 is equipped with a built-in rectifier bridge, Zener transistor regulator, operational amplifier, current reference, delay circuit, latch, and thyristor driver.
A thyristor external relay, three capacitors, and an external resistor were designed using a circuit architecture. The simple layout and minimum number of components ensure the convenience and long-term reliability of the application.
D4140 adopts packaging forms of SOP8 and DIP8.
● High input sensitivity (typical VT=6.0mV)
● Direct AC power supply
● Direct drive thyristor with latch output
● Adjustable delay time
● Dedicated to two line systems
● Applicable to 110V and 220V AC power supply
● 350 μ A static current
● Complies with UL943 standard
● Less external components required
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