FAN4147 Fairchild Semiconductor, FAN4147 Datasheet

no-image

FAN4147

Manufacturer Part Number
FAN4147
Description
The FAN4147 is a low-power Ground Fault Interrupter (GFI) controller for detecting hazardous current paths to ground and ground-to-neutral faults
Manufacturer
Fairchild Semiconductor
Datasheet
© 2010 Fairchild Semiconductor Corporation
FAN4147 • Rev. 1.0.1
FAN4147
Ground Fault Interrupter
Features
Applications
Ordering Information
Part Number
FAN4147SX
For GFCI and RCD Applications
Precision Sense Amplifier and Bandgap Reference
Built-in AC Rectifier
Built-in Noise Filter
Low-Voltage SCR Disable
Direct DC Coupled to Sense Coil
SCR Gate Driver
Adjustable Sensitivity
400μA Quiescent Current
Minimum External Components
Meets UL 943 Requirements
Ideal for 120V or 220V Systems
Space Saving SuperSOT™ 6-Pin Package
GFCI Output Receptacles
GFCI Circuit Breakers
Portable GFCI Cords
Temperature Range
-35°C to +85°C
Operating
6-Lead SUPERSOT6, JEDEC M0-193, 1.6mm
Description
The FAN4147 is a low-power Ground Fault Interrupter
(GFI) controller for detecting hazardous current paths to
ground and ground-to-neutral faults. The FAN4147
application circuit opens the load contacts before a
harmful shock occurs.
Internally, the FAN4147 contains a diode rectifier,
precision bandgap 12V shunt regulator, precision low-
V
window-detection comparators, and an SCR driver.
With a minimum number of external components, the
FAN4147 detects and protects against a hot-wire-to-
ground fault and a neutral-line-to-neutral-load short.
The minimal components and the small SuperSOT™
package allow for a small-form-factor, low-cost solution.
The FAN4147 circuitry has a built-in rectifier and shunt
regulator that operates with a low quiescent current.
This allows for a high-value, low-wattage-series supply
resistor. The internal temperature-compensated shunt
regulator, sense amplifier, and bias circuitry provide for
precision ground-fault detection. The low-V
sense amplifier allows direct coupling of the sense coil
to the amplifier’s feedback signal. This eliminates the
large 50/60Hz AC-coupling capacitor. The internal delay
filter rejects high-frequency noise spikes common with
inductive loads. This decreases false nuisance tripping.
The internal SCR driver is temperature compensated
and designed to satisfy the current requirements for a
wide selection of external SCRs.
The minimum number of external components and the
6-pin SuperSOT™ package enable a low-cost, compact
design and layout.
OS
offset-sense amplifier, time delay noise filter,
Package
Packing Method
Tape and Reel
September 2010
www.fairchildsemi.com
OS
offset-

Related parts for FAN4147

FAN4147 Summary of contents

Page 1

... The minimal components and the small SuperSOT™ package allow for a small-form-factor, low-cost solution. The FAN4147 circuitry has a built-in rectifier and shunt regulator that operates with a low quiescent current. This allows for a high-value, low-wattage-series supply resistor ...

Page 2

... R : 15KΩ R TEST Notes: 1. Contact Fairchild for best application practices for nuisance tripping rejection. 2. Exact values depend on sense coil characteristics and application. © 2010 Fairchild Semiconductor Corporation FAN4147 • Rev. 1.0 VTH C 2 Figure 1. Block Diagram Figure 2. Typical Application  C1: 22nF : 511KΩ ...

Page 3

... Pin Configuration SCR Neutral Line Pin Definitions Pin # Name 1 SCR Gate drive for external SCR 2 Neutral Supply input for FAN4147 circuitry 3 Line Supply input for FAN4147 circuitry 4 VREF Non-inverting input for current-sense amplifier 5 VFB Inverting input for current-sense amplifier 6 AmpOut An external resistor connected to the VFB pin sets the I © ...

Page 4

... SCR Output Voltage OUT I SCR Output Current OUT Note: 3. Guaranteed by design; not tested in production. © 2010 Fairchild Semiconductor Corporation FAN4147 • Rev. 1.0.1 Parameter Human Body Model, JESD22-A114 Charged Device Model, JESD22-C101 Machine Model, JESD22-A115 Conditions =1mA) shunt Line to Neutral Line to Neutral I ...

Page 5

... Functional Description (Refer to Figure 1 and Figure 2.) The FAN4147 is a GFCI controller for AC ground-fault circuit interrupters. The internal rectifier circuit is supplied from the AC line during the positive half cycle of the AC line voltage. The internal 12V shunt regulator uses a precision temperature-compensated bandgap reference. The combination of precision reference ...

Page 6

... Unless otherwise specified, results are T Figure 4. Typical Waveforms with No Ground Fault Figure 5. Typical Waveforms with 4mA Ground Fault © 2010 Fairchild Semiconductor Corporation FAN4147 • Rev. 1.0.1 =25°C and according to Figure 2 with solenoid disconnected. A Ch1: Line (Pin 3) 10V/Div Ch2: AmpOut (Pin 6) 10V/Div ...

Page 7

... Unless otherwise specified, results are T Figure 6. Typical Waveforms with 5mA Ground Fault Figure 7. Typical Waveforms with 5mA Ground Fault (Line Polarity Reversal) © 2010 Fairchild Semiconductor Corporation FAN4147 • Rev. 1.0.1 =25°C and according to Figure 2 with solenoid disconnected. A Ch1: Line (Pin 3) 10V/Div ...

Page 8

... Unless otherwise specified, results are T Figure 8. Typical Waveforms for Grounded Neutral Detection Figure 9. Typical Waveform for Grounded Neutral Detection © 2010 Fairchild Semiconductor Corporation FAN4147 • Rev. 1.0.1 =25°C and according to Figure 2 with solenoid disconnected. A Sense amplifier oscillates with 2Ω grounded neutral fault ...

Page 9

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2010 Fairchild Semiconductor Corporation FAN4147 • Rev. 1.0.1 Figure 10. 6-Lead SUPERSOT™ 9 www.fairchildsemi.com ...

Page 10

... Fairchild Semiconductor Corporation FAN4147 • Rev. 1.0.1 10 www.fairchildsemi.com ...

Related keywords