FAN4146SX Fairchild Semiconductor, FAN4146SX Datasheet

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FAN4146SX

Manufacturer Part Number
FAN4146SX
Description
IC CTLR LOW PWR AC GFI 6-SSOT
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of FAN4146SX

Applications
Ground Fault Protection
Current - Supply
400µA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
SOT-6
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN4146SX
Manufacturer:
Fairchild Semiconductor
Quantity:
32
© 2010 Fairchild Semiconductor Corporation
FAN4146 • Rev. 1.0.0
FAN4146 — Ground Fault Interrupter
Features
Applications
Ordering Information
Part Number
FAN4146ESX
FAN4146SX
For Two-Wire ALCI and RCD Applications
Precision Sense Amplifier and Bandgap Reference
Built-in AC Rectifier
Direct DC Coupled to Sense Coil
Built-in Noise Filter
Low-Voltage SCR Disable
SCR Gate Driver
Adjustable Sensitivity
Minimum External Components
Meets UL 943B Requirements
Ideal for 120V or 220V Systems
Space-Saving SuperSOT™ 6-Pin Package
Personal Care Products
Two-Wire Electrical Outlets, Circuit Breakers, and
Power Cords Requiring GFI Safety Features
ALCI and RCCB Circuits
Temperature Range
-25°C to +80°C
0°C to +70°C
Operating
6-Lead SUPERSOT6, JEDEC MO-193, 1.6mm
6-Lead SUPERSOT6, JEDEC MO-193, 1.6mm
Description
The FAN4146 is a low-power controller for AC outlet
Appliance Leakage Circuit Interrupters (ALCI) and two-
wire Residual Current Devices (RCD). The FAN4146
detects hazardous grounding conditions and open
circuits the line before a harmful shock occurs.
Internally, the FAN4146 contains a diode rectifier,
precision bandgap 12V shunt regulator, precision low
V
window-detection comparators, and a SCR driver. With
the addition of a minimum number of external
components, the FAN4146 detects and protects against
a hot-wire-to-ground fault. The minimum number of
components and the small SuperSOT™ package allow
for a small-form-factor, low-cost application solution.
The FAN4146 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 for a low-cost,
compact design and layout. The FAN4146ESX is an
enhanced temperature range device.
OS
offset-sense amplifier, time delay noise filter,
Package
Packing Method
Tape and Reel
Tape and Reel
August 2010
www.fairchildsemi.com
OS
offset-

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FAN4146SX Summary of contents

Page 1

... Two-Wire Electrical Outlets, Circuit Breakers, and Power Cords Requiring GFI Safety Features ALCI and RCCB Circuits Ordering Information Operating Part Number Temperature Range FAN4146SX 0°C to +70°C FAN4146ESX -25°C to +80°C © 2010 Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 Description ...

Page 2

... R : 15KΩ TEST Note: 3. Value depends on sense-coil characteristics and application (value chosen for 10mA trip threshold). 4. Contact Fairchild for best application practices for nuisance tripping rejection. © 2010 Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 Figure 1. 120/220V ALCI Application 470Ω ...

Page 3

... Supply input for FAN4146 circuitry 4 VREF Non-inverting input for current-sense amplifier 5 VFB Inverting input for current-sense amplifier 6 AmpOut External resistor connected to VFB sets the I © 2010 Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 Figure 3. Block Diagram Figure 4. Pin Configuration sensitivity threshold fault 3 www.fairchildsemi.com ...

Page 4

... SCR Output Voltage OUT I SCR Output Current OUT Note: 5. Guaranteed by design; not tested in production. © 2010 Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 Condition Continuous Current, Line to Neutral Continuous Voltage, Line to Neutral Continuous Voltage to Neutral Human Body Model, JESD22-A114 Charged Device Model, JESD22-C101 Machine Model, JESD22-A115 =1mA ...

Page 5

... The primary difference current divided by the primary-to-secondary turns ratio is the current that flows through the secondary wire of the transformer. © 2010 Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 Calculation of R The comparator’s V ...

Page 6

... Line Ch2: AmpOut (Pin 6), 5V/Div Ch3: SCR (Pin 1), 1V/Div Ch4 10mA/Div FAULT Figure 7. Typical Waveforms, 5mA Ground Fault © 2010Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 Ch1: V (Pin 3), 10V/Div Line Ch2: AmpOut (Pin 6), 5V/Div Ch3: SCR (Pin 1), 1V/Div Ch4 10mA/Div FAULT Figure 6 ...

Page 7

... Ch4 500mA/Div FAULT Figure 11. 500Ω Ground Fault Note: 6. Maximum trip time ~12ms. 7. Fault occurs at the end of the positive AC cycle. © 2010Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 (Continued) Ch1: V Ch2: AmpOut (Pin 6), 5V/Div Ch3: SCR (Pin 1), 2V/Div Ch4 (Pin 3), 10V/Div ...

Page 8

... Figure 14. © 2010Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 ‐ Temperature °C Figure 12. VThreshold (V ) vs. Temperature TH ‐ Temperature °C Figure 13. VReference (V ) vs. Temperature REF ‐ Temperature °C ...

Page 9

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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’ ...

Page 10

... Semiconductor Corporation FAN4146 • Rev. 1.0.0 10 www.fairchildsemi.com ...

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