參數(shù)資料
型號： KA2803BD
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： Earth Leakage Detector
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： SOP-8
文件頁數(shù)： 1/12頁
文件大?。?/td> 147K
代理商： KA2803BD
2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.4
Features
Low Power Consumption P
D
=5mW, 100V/200V
Built-in Voltage Regulator
High Gain Differential Amplifier
0.4mA Output Current Pulse to Trigger SCR' S
Low External Part Count
DIP Package (8-DIP), High Packing Density
High Noise Immunity, Large Surge Margin
Super Temperature Characteristic of Input Sensitivity
Wide Operating Temperature Range (T
A
= -25
°
C ~
+80
°
C)
Operation from 12 to 20V Input
Functions
Differential Amplifier
Level Comparator
Latch Circuit
Description
The KA2803B is designed for use in earth leakage circuit
interrupters, for stable operation of the AC line in breakers.
The input of the differential amplifier is connected to the
secondary coil of ZCT(Zero Current Transformer). The
amplified output of differential amplifier is integrated at
external capacitor to gain adequate time delay that is
specified in KSC4613. The level comparator generates high
level when earth leakage current is greater than the fixed
level.
8-DIP
1
1
8-SOP
Block Diagram
Reference
Voltage
Z
I
Circuit
Circuit
+
-
8
7
6
5
O
S(Output)
N
R
S
C
Bias Voltage
1
2
3
4
V
R
V
I
GND
O
D
V
CC
Reference
Voltage
+
Latch
I
B
Z
P
K A2803B
Earth Leakage Detec tor
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KA2803BD_11 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Earth Leakage Detector
KA2803BDTF 功能描述:校驗器 IC Earth Leak Detector RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
KA2804 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:LINEAR INTEGRATED CIRCUIT
KA2804N 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:LINEAR INTEGRATED CIRCUIT
KA2807 功能描述:SCR Earth Leak Detector RoHS:否 制造商:STMicroelectronics 最大轉(zhuǎn)折電流 IBO:480 A 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:600 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）:5 uA 開啟狀態(tài) RMS 電流 (It RMS): 正向電壓下降:1.6 V 柵觸發(fā)電壓 (Vgt):1.3 V 最大柵極峰值反向電壓:5 V 柵觸發(fā)電流 (Igt):35 mA 保持電流（Ih 最大值）:75 mA 安裝風格:Through Hole 封裝 / 箱體:TO-220 封裝:Tube
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