FAN4146 Fairchild Semiconductor, FAN4146 Datasheet
FAN4146
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FAN4146 Summary of contents
Page 1
... 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 ...
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... 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 ...
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... Block Diagram Pin Configuration Pin Definitions Pin # Name Description 1 SCR Gate drive for external SCR 2 Neutral Supply input for FAN4146 circuitry 3 Line 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 © ...
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... 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 ...
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... Functional Description Refer to Figure 1 and Figure 3. The FAN4146 is a two-wire GFCI controller for AC ground-fault-circuit interrupters. The internal rectifier circuit is biased by 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 circuitry and precision sense amplifier provides for an accurate ground-fault tolerance ...
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... 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. ...
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... 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 Line ...
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... 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 ...
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... 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/. © 2010Fairchild Semiconductor Corporation FAN4146 • Rev. 1.0.0 6-Lead SUPERSOT6, JEDEC MO-193, 1.6mm Wide 9 www.fairchildsemi.com ...
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... Semiconductor Corporation FAN4146 • Rev. 1.0.0 10 www.fairchildsemi.com ...