RV4145A ARTSCHIP | Alldatasheet

Document overview

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Technical content

Features

z No potentiomenter required z Direct interface to SCR z Supply voltage derived from AC line-26V shunt z Adjustable sensitivity z Grounded neutral fault detection z Meets U.L. 943 standards z 450µA quiescent current z Ideal for 120V or 220V systems

Description

The RV4145A is a low power controller for AC outlet ground fault interrupters. These devic es 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. Contained internally are a 26V zener shunt regulator, an op amp, and an SCR driver. With the addition of two sense transformers, a bridge rectifier, an SCR, a relay, and a few additional components, the RV4145A will 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. Block Diagram Pin Assignments

Low Power Ground Fa ult Interrupter www.artschip.com 2 Absolute Maximum Ratings (beyond which the device may be damaged)1 Parameter Min Typ Max Units Supply Current 18 mA Internal Power Dissipation 500 mW Storage Temperature Range -65 +150 ¥ Operating Temperature Range -35 +85 ¥ Junction Temperature 125 ¥

60 Sec, DIP 300 ¥ Lead Soldering Temperature

10 Sec, SOIC 260 ¥

SOIC 300 mW PD TA<50¥ PDIP 450 mW SOIC 4 mW/ ¥ For TA>50¥ Derate at PDIP 6 mW/ ¥ Notes: 1. Functional operation under any of t hese conditions is NOT implied. Perform ance and reliability are guaranteed only if Operating Conditions are not exceeded. Operating Conditions Parameter Min Typ Max Units SOIC 240 ¥/W ӨJA Thermal resistance PDIP 160 ¥/W Electrical Characteristics (Is=1.5mA and TA=+25¥) Parameters Test Conditions Min Typ Max Units Detector Reference Voltage Pin 7 to Pin3 6.8 7.2 8.1 ±V Shunt Regulator Zener Voltage (+Vs) Pin 6 to Pin 4 25 26 29.2 V Reference Voltage (VREF) Pin 3 to Pin 4 12.5 13 14.6 V Quiescent Current (Is) +Vs=24V 450 750 µA Operational Amplifier Offset Voltage Pin 2 to Pin 3 -3.0 0.5 +3.0 mV +Output Voltage Swing Pin 7 to Pin 3 6.8 7.2 8.1 V -Output Voltage Swing Pin 7 to Pin 3 -9.5 -11.2 -13.5 V +Output Source Current Pin 7 to Pin 3 650 µA -Output Source Current Pin 7 to Pin 3 1.0 mA Gain Bandwidth Product F=50KHz 1.0 1.8 MHz Resistors Is=0mA R1 Pin 1 to Pin 3 10 k Ω R2 Pin 2 to Pin 3 10 k Ω R3 Pin 5 to Pin 4 3.5 4.7 5.9 k Ω SCR Trigger Voltage Pin 5 to Pin 4 Detector On 1.5 2.8 V Detector Off 0 1 10 mV

Low Power Ground Fa ult Interrupter www.artschip.com 3 Electrical Characteristics (Is=1.5mA and -35¥ ≤TA≤+85¥) Parameters Test Conditions Min Typ Max Units Detector Reference Voltage Pin 7 to Pin3 6.8 7.2 8.1 ±V Shunt Regulator Zener Voltage (+Vs) Pin 6 to Pin 4 24 26 30 V Reference Voltage (VREF) Pin 3 to Pin 4 12. 13 15 V Quiescent Current (Is) +Vs=23V 500 µA Operational Amplifier Offset Voltage Pin 2 to Pin 3 -5.0 0.5 +5.0 mV +Output Voltage Swing Pin 7 to Pin 3 6.5 7.2 8.3 V -Output Voltage Swing Pin 7 to Pin 3 -9 -11.2 -14 V Gain Bandwidth Product F=50KHz 1.8 MHz Resistors Is=0mA R1 Pin 1 to Pin 3 10 k Ω R2 Pin 2 to Pin 3 10 k Ω R3 Pin 5 to Pin 4 3.5 4.7 5.9 k Ω SCR Trigger Voltage Pin 5 to Pin 4 Detector On 1.3 2.8 V Detector Off 0 3 50 mV

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Low Power Ground Fa ult Interrupter www.artschip.com 7 Schematic Diagram

Low Power Ground Fa ult Interrupter www.artschip.com 8 Mechanical Dimensions 8-Lead Plastic DIP Package Inches Millimeters Symbol Min. Max. Min. Max. Notes A - .210 - 5.33 A1 .015 - .38 - A2 .115 .195 2.93 4.95 B .014 .022 .36 .56 B1 .045 .070 1.14 1.78 C .008 .015 .20 .38 4 D .348 .430 8.84 10.92 2 D1 .005 - .13 - E .300 .325 7.62 8.26 E1 .240 .280 6.10 7.11 2 e .100 BSC 2.54 BSC eB - .430 - 10.92 L .115 .160 2.92 4.06 N 8˚ 8 ˚ 5 Notes: 1. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Terminal numbers are for reference only. 4. “C” dimension does not include solder finish thickness. 5. Symbol “N” is the maximum number of terminals.

Low Power Ground Fa ult Interrupter www.artschip.com 9 Mechanical Dimensions (continued) 8-Lead Plastic DIP Package Inches Millimeters Symbol Min. Max. Min. Max. Notes A .053 .069 1.35 1.75 A1 .004 .010 0.10 0.25 B .013 .020 0.33 0.51 C .008 .010 0.20 0.25 5 D .189 .197 4.80 5.00 2 E .150 .158 3.81 4.01 2 e .050 BSC 1.27 BSC H .228 .244 5.79 6.20 h .010 .020 0.25 0.50 L .016 .050 0.40 1.27 3 N 8 8 6 Ћ 0˚ 8 ˚ 0 ˚ 8 ˚ ccc - .004 - 0.10 Notes: 1. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. “L” is the length of terminal for soldering to a substrate. 4. Terminal numbers are shown for reference only. 5. “C” dimension does not include solder finish thickness. 6. Symbol “N” is the maximum number of terminals.

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Ordering Information

Part Number Package Operating Temperature Range Packing Method RV4145AN 8-Lead Plastic DIP -35¥ to +85 ¥ Rail RV4145AM 8-Lead Plastic SOIC -35¥ to +85 ¥ Rail RV4145AMT 8-Lead Plastic SOIC -35¥ to +85 ¥ Tape and Reel