圖片僅供參考
| FLYiNG 零件編號 | ICGF4146GAG6RUTC |
| FLYiNG 庫存現貨 | 電洽/Contact |
| 製造商 | UTC |
| 製造商零件編號 | GF4146G-AG6-R |
| 說明 | CMOS IC GF4146G-AG6-R SOT-26 |
| 無鉛狀態 / RoHS 指令狀態 | RoHS / Halogen Free |
| 製造商 | UTC |
| 系列 | GF4146 |
| 原廠料號 | GF4146G-AG6-R |
| 封裝／外殼 | SOT-26 |
| 安裝類型 | SMD表面黏著式 |
| 無鉛狀態 RoHS | RoHS / Halogen Free |
GF4146 CMOS IC
GROUND FAULT INTERRUPTER
DESCRIPTION
FEATURES
GROUND FAULT INTERRUPTER
DESCRIPTION
The UTC GF4146 is a two-wire low-power controller for Residual Current Devices (RCD) and AC outlet Appliance Leakage Circuit Interrupters (ALCI) . The UTC GF4146 detects hazardous grounding conditions and open circuits the line before a harmful shock occurs.
Internally, the UTC GF4146 contains a diode rectifier, 12V shunt regulator using a precision temperature-compensated bandgap reference, precision low VOS offset-sense amplifier, time delay noise filter, window-detection comparators, and a SCR driver. With the
addition of a minimum number of external components, the UTC GF4146 detects and protects against a hot-wire-to-ground fault.
The UTC GF4146 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 VOS offset-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.
Internally, the UTC GF4146 contains a diode rectifier, 12V shunt regulator using a precision temperature-compensated bandgap reference, precision low VOS offset-sense amplifier, time delay noise filter, window-detection comparators, and a SCR driver. With the
addition of a minimum number of external components, the UTC GF4146 detects and protects against a hot-wire-to-ground fault.
The UTC GF4146 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 VOS offset-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.
FEATURES
- For Two-Wire ALCI and RCD Applications
- Precision Sense Amplifier and Bandgap Reference
- Built-in AC Rectifier
- Direct DC Coupled to Sense Coil
- Low-Voltage SCR Disable
- Adjustable Sensitivity
- Built-in Noise Filter
- SCR Gate Driver
- Minimum External Components
- Meets UL 943B Requirements
- Ideal for 120V or 220V Systems
GF4146 CMOS IC
接地故障斷路器
描述
UTC GF4146 是一款兩線低功耗控制器，適用於剩餘電流裝置 (RCD) 和交流插座的設備漏電電路斷路器 (ALCI)。UTC GF4146 能檢測危險的接地條件，並在造成有害觸電之前斷開電路。
內部結構包括二極體整流器、12V 分流穩壓器（基於精密溫度補償的帶隙參考）、精密低偏移電壓 (VOS) 偵測放大器、時間延遲噪聲濾波器、窗口檢測比較器以及 SCR 驅動器。UTC GF4146 結合最少的外部元件，能檢測並防止火線對地的故障。
其內部電路包含整流器和分流穩壓器，工作時的靜態電流非常低，允許使用高阻值、低功率的串聯供電電阻。
內部的溫度補償分流穩壓器、偵測放大器和偏置電路提供了精密的接地故障檢測。低偏移電壓的偵測放大器允許將感應線圈直接耦合至放大器的回饋信號，省去了大容量的 50/60Hz 交流耦合電容器。內部延遲濾波器能濾除來自感性負載的高頻噪聲尖峰，減少誤動作跳閘。內部的 SCR 驅動器經過溫度補償設計，能滿足廣泛外部 SCR 的電流要求。
特點
- 適用於兩線式 ALCI 和 RCD 應用
- 精密感應放大器與帶隙參考
- 內建交流整流器
- 與感應線圈直接直流耦合
- 低電壓 SCR 停用功能
- 靈敏度可調
- 內建噪聲濾波器
- SCR 閘驅動器
- 最少外部元件需求
- 符合 UL 943B 標準要求
- 適用於 120V 或 220V 系統
