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參數(shù)資料
| 型號： | KA2803B |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Earth Leakage Detector(地線漏電檢測器) |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 168K |
| 代理商： | KA2803B |
2000 Fairchild Semiconductor International
www.fairchildsemi.com
Rev. 5.0
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)
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 speci-
fied in KSC4613. The level comparator generates high level
when earth leakage current is greater than the fixed level.
8-DIP
1
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
KA2803B
Earth Leakage Detector
相關PDF資料 |
PDF描述 |
|---|---|
| KA2804 | LINEAR INTEGRATED CIRCUIT |
| KA2804N | LINEAR INTEGRATED CIRCUIT |
| KA2807D | Earth Leakage Detector |
| KA2903D | Dual Differential Comparator |
| KA293A | Dual Differential Comparator |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KA2803B_11 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Earth Leakage Detector |
| KA2803B_NL | 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 |
| KA2803BD | 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 |
| 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 |
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