FAN1851AN Fairchild Semiconductor, FAN1851AN Datasheet
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FAN1851AN
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FAN1851AN Summary of contents
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FAN1851A Ground Fault Interrupter Features • Improved performance over industry equivalents – Tight fault current range (Typ ±100µA) – Temperature compensated fault current characteristics – No external trimming required • Direct interface to SCR • Supply voltage derived from AC ...
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FAN1851A Pin Assignments Functional Description The voltage at the supply pin is clamped to +26V by the internal shunt regulator D3. This shunt regulator also generates an artificial ground voltage for the noninverting input of A1 (shown as a +10V ...
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PRODUCT SPECIFICATION Normal Fault Plus Grounded Neutral Fault: The combination of the normal fault and the grounded neutral fault, as shown by the dashed lines in Figure 3. Hot Hot R GFI LOAD Line Neutral Neutral R G Figure 3. ...
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FAN1851A DC Electrical Characteristics (T = +25° mA) A SHUNT Parameters Power Supply Shunt Regulator Voltage Latch Trigger Voltage Sensitivity Set Voltage Output Drive Current Output Saturation Voltage Output Saturation Resistance Output External Current Sinking 1 Capability ...
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PRODUCT SPECIFICATION Typical Performance Characteristics 1000 100 UL943 Normal Fault 10 0 0.01 0.1 Trip Time (Seconds) Figure 4. Average Trip Time vs. Fault Current 1400 1200 1000 800 31V 600 1 400 ...
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FAN1851A Application Information A typical ground fault interrupter circuit is shown in Figure 10 designed to operate on 120 VAC line voltage with 5mA normal fault sensitivity. A full-wave rectifier bridge and a 15k /2W resistor are used ...
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PRODUCT SPECIFICATION where integration time V = threshold voltage I = average fault current into CT 120 V rms ⎛ ⎞ ⎛ ------------------------------------ - ---------------------- - ⎝ ⎠ ⎝ heavy fault portion ...
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FAN1851A Application Circuits C 0.002 A 300 mV Hot Load MOV Neutral Circuit Breaker 0.01/400V *Adjust R for desired sensitivity. SET Figure 10. 120 Hz Neutral Transformer Application 8 FAN1851A 7 -In Timing Cap 1 SCR +In Trigger T 5 ...
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FAN1851A Mechanical Dimensions 8-Lead Plastic DIP Package 6.40 0.20 0.252 0.008 #1 #4 7.62 0.300 5.08 MAX 0.200 3.40 0.20 0.134 0.008 PRODUCT SPECIFICATION 3.30 0.30 0.130 0.012 0.33 MIN 0.013 Dimensions in Millimeters REV. 2.0.1 6/17/05 ...
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FAN1851A Mechanical Dimensions 8-Lead Plastic SOIC Package Inches Millimeters Symbol Min. Max. Min. A .053 .069 1.35 A1 .004 .010 0.10 B .013 .020 0.33 C .008 .010 0.20 D .189 .197 4.80 E .150 .158 3.81 e .050 BSC ...
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... FAN1851A Ordering Information Part Number Package FAN1851AN 8-lead Plastic DIP FAN1851AMX 8-lead Plastic SOIC DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; ...