RV4141AMT_11 FAIRCHILD [Fairchild Semiconductor], RV4141AMT_11 Datasheet

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RV4141AMT_11

Manufacturer Part Number
RV4141AMT_11
Description
Low-Power, Ground-Fault Interrupter
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
1.RV4141AMT_11.pdf (9 pages)
© 2003 Fairchild Semiconductor Corporation
RV4141A • Rev. 1.0.8
RV4141A
Low-Power, Ground-Fault Interrupter
Features
Ordering Information
RV4141AN
RV4141AMT
Part Number
Powered from the AC Line
Built-In Rectifier
Direct Interface to SCR
500μA Quiescent Current
Precision Sense Amplifier
Adjustable Time Delay
Minimum External Components
Meets UL 943 Requirements
Compatible with 110V or 220V Systems
Available in an 8-Pin SOIC Package
Temperature
-35 to +80°C
-35 to +80°C
Operating
Range
8-Lead, Plastic Dual-Inline Package (DIP)
8-Lead, Plastic Small-Outline Integrated Circuit (SOIC)
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.
Package
December 2011
Tape and Reel
www.fairchildsemi.com
Packing
Method
Rails

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RV4141AMT_11 Summary of contents

Page 1

RV4141A Low-Power, Ground-Fault Interrupter Features  Powered from the AC Line  Built-In Rectifier  Direct Interface to SCR  500μA Quiescent Current  Precision Sense Amplifier  Adjustable Time Delay  Minimum External Components  Meets UL 943 Requirements ...

Page 2

Block Diagram Pin Configuration Pin Definitions Pin # Name Description 1 Amp Out Sense Amplifier Output – an external resistor Sense amplifier negative input Sense amplifier positive input – biased internally at +V ...

Page 3

Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure ...

Page 4

Electrical Characteristics I = 1.5mA and T = +25°C, R LINE A Symbol Parameter Shunt Regulator (Pins Regulated Voltage REG I Quiescent Current Q Sense Amplifier (Pins Offset Voltage OFF GBW Gain ...

Page 5

Circuit Operation (Refer to Figure 1 and Figure 3.) The precision op amp connected to pins 1 through 3 senses the fault current flowing in the secondary of the sense transformer, converting voltage at pin 1. The ...

Page 6

The SCR anode is directly connected to a solenoid or relay coil. It can be tripped only when its anode is more positive than its cathode. It must have a high dV/dt rating to ensure that line noise (generated by ...

Page 7

Physical Dimensions A (.092) [Ø2.337] PIN #1 TOP VIEW OPTION .021 0.53 .015 0.37 .001[.025] C NOTES: A. CONFORMS TO JEDEC REGISTRATION MS-001, VARIATIONS BA B. CONTROLING DIMENSIONS ARE IN INCHES REFERENCE DIMENSIONS ARE IN MILLIMETERS ...

Page 8

Physical Dimensions 8 6.20 5.80 1 PIN ONE INDICATOR (0.33) 0.25 0.10 1.75 MAX R0.10 R0.10 8° 0° 0.90 0.406 DETAIL A Figure 5. 8-Lead, Plastic Small-Outline Integrated Circuit (SOIC) Package drawings are provided as a service to customers considering ...

Page 9

Fairchild Semiconductor Corporation RV4141A • Rev. 1.0.8 9 www.fairchildsemi.com ...

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