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參數資料
| 型號： | FAN1851AMX_NL |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, SOIC-8 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 122K |
| 代理商： | FAN1851AMX_NL |
www.fairchildsemi.com
REV. 2.0.1 6/17/05
Features
Improved performance over industry equivalents
– Tight fault current range (Typ ±100A)
– Temperature compensated fault current characteristics
– No external trimming required
Direct interface to SCR
Supply voltage derived from AC line—26V shunt
Adjustable sensitivity
Grounded neutral fault detection
Meets UL943 standards
450A quiescent current
Ideal for 120V or 220V systems
Package options: 8L DIP and 8L SOIC
Description
The FAN1851A is a controller for AC outlet ground fault
interrupters. These devices detect hazardous grounding con-
ditions (example: a pool of water or an electrical equipment
connected to opposite phases of the AC line) in consumer
and industrial environments. The output of the IC triggers an
external SCR, which in turn opens a relay circuit breaker to
prevent a harmful or lethal shock.
Full advantage of the U.S. UL943 timing specification is
taken to ensure maximum immunity to false triggering due
to line noise. A special feature in the circuitry rapidly resets
the integrating timing capacitor in the event that noise pulses
introduce unwanted charging currents. Also, a flip-flop is
included that ensures firing of even a slow circuit breaker
relay on either of the two half-cycles of the line voltage
when external full wave rectification is used.
The application circuit can be configured to detect both
normal faults (hot wire to ground) and grounded neutral
faults.
Block Diagram
+VS
Timing
Capacitor
Sensitivity
Set Resistor
ITH
Sense Amplifier
Output
ITH for IF > 0
3ITH for IF = 0
I1 =
IF
Q2
Q1
Latch
D3
I2
Q3
Q4
A1
D1
IF
Ground
Non-Inverting Input
10V
Inverting Input
SCR Trigger
Q5
D2
+VS
FAN1851A
Ground Fault Interrupter
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN1851AN | 功能描述:基準電壓& 基準電流 ANG FG GFI RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| FAN1852MX | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN1852MX_SN00164 | 制造商:Fairchild Semiconductor Corporation 功能描述:FAN1852MX_SN00164-LEVITON |
| FAN1950 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:1.5A Low-Voltage Low-Dropout Regulator |
| FAN1950D25X | 功能描述:低壓差穩壓器 - LDO ANG FG LDO 2.5V FIX IN 3-LEAD DPAK RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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