RV4145AMT

Low-Power Ground Fault Interrupter RV4145A Description The RV4145A is a low−power controller for AC outlet ground fault interrupters. These devices detect hazardous grounding conditions, such as equipment (connected to opposite phases of the AC line) in contact with a pool of water and open circuits the line before a harmful or lethal shock occurs. A 26 V Zener shunt regulator, an operational amplifier, and an SCR driver are contained internally. With the addition of two sense transformers, a bridge rectifier, an SCR, a relay, and a few additional components; the RV4145A can detect and protect against both hot−wire− to−ground and neutral−wire−to−ground faults. The simple layout and conventional design ensure ease of application and long−term reliability. www.onsemi.com MARKING DIAGRAM PDIP−8 CASE 626−05 Features • • • • • • • • • SOIC8 CASE 751EB No Potentiometer Required Direct Interface to Silicon−Controlled Rectifier (SCR) Supply Voltage Derived from AC Line – 26 V Shunt Adjustable Sensitivity Grounded Neutral Fault Detection Meets U.L. 943 Standards 450 mA Quiescent Current Ideal for 120 V or 220 V Systems These are Pb−Free Devices RV4145AN, RV4145AM $Y &Z &2 &K $Y&Z&2&K RV4145AN $Y&Z&2&K RV4145AM = Specific Device Code = ON Semiconductor Logo = Assembly Plant Code = 2−Digit Date Code = 2−Digits Lot Run Traceability Code ORDERING INFORMATION See detailed ordering and shipping information on page 7 of this data sheet. Figure 1. Block Diagram © Semiconductor Components Industries, LLC, 2004 April, 2021 − Rev. 2 1 Publication Order Number: RV4145A/D RV4145A PIN CONFIGURATION Figure 2. Pin Assignment PIN DESCRIPTION Pin No. Name Description 1 VFB Sense amplifier negative input 2 +Input Sense amplifier positive input 3 VREF Reference Voltage 4 GND Ground 5 SCR Trigger 6 +VS 7 Op Amp Output 8 NC Output for triggering external SCR when a fault is detected Supply input for RV4145A circuitry Sense Amplifier Output No Connect ABSOLUTE MAXIMUM RATINGS Symbol Parameter Min Typ Max Unit VCC Supply Current − − 18 mA PD Internal Power Dissipation − − 500 mW TSTG Storage Temperature Range −65 − +150 °C TA Operating Temperature Range −35 − +85 °C TJ Junction Temperature − − 125 °C TL Lead Soldering Temperature 60 s, DIP − − 300 °C 10 s, SOIC − − 260 SOIC − − 300 PDIP − − 450 SOIC − 4 − PDIP − 6 − SOIC − 240 − PDIP − 160 − PD Power Dissipation TA