RV4141AMT Electronics IC Chips Integrated Circuits IC Component
Low Power Ground Fault Interrupter
Features
• Powered from the AC line
• Built-in rectifier
• Direct interface to SCR
• 500 µA quiescent current
• Precision sense amplifier
• Adjustable time delay
• Minimum external components
• Meets UL 943 requirements
• For use with 110V or 220V systems
• Available in an 8-pin SOIC package
Description
The RV4141A is a low-power controller for AC receptacle ground
fault circuit interrupters. These devices detect hazardous current
paths to ground and ground to neutral faults.
The circuit interrupter then disconnects the load from the line
before a harmful or lethal shock occurs. Internally, the RV4141A
contains a diode rectifier, shunt regulator, precision sense
amplifier, current reference, time delay circuit, and SCR driver.
Two sense transformers, SCR, solenoid, three resistors and four
capacitors complete the design of the basic circuit interrupter.
The simple layout and minimum component count ensure ease of
application and long term reliability.
Features not found in other GFCI controllers include a low offset
voltage sense amplifier eliminating the need for a coupling
capacitor between the sense transformer and sense amplifier, and an
internal rectifier to eliminate high voltage rectifying diodes.
The RV4141A is powered only during the positive half period of the
line voltage, but can sense current faults independent of its phase
relative to the line voltage. The gate of the SCR is driven only
during the positive half cycle of the line voltage.
MAXIMUM RATINGS (Voltages Referenced to VSS)
| Symbol | Parameter | Value | Unit |
| Iin Iout | Input or Output Current (DC or Transient) Per Pin | 10 | mA |
PD | Power Dissipation, Per Package | 500 | mW |
| TA | Ambient Temperature Range | -35 to +85 | °C |
| Tstg | Storage Temperature Range | -65 to +150 | °C |
| TL | Lead Temperture | 260 | °C |
