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PDF ( 数据手册 , 数据表 ) RV4145AMU

零件编号 RV4145AMU
描述 Low Power Ground Fault Interrupter
制造商 Fairchild Semiconductor
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RV4145AMU 数据手册, 描述, 功能
RV4145A
Low Power Ground Fault Interrupter
www.fairchildsemi.com
Features
• No potentiomenter required
• Direct interface to SCR
• Supply voltage derived from AC line – 26V shunt
• Adjustable sensitivity
• Grounded neutral fault detection
• Meets U.L. 943 standards
• 450µA quiescent current
• Ideal for 120V or 220V systems
Description
The RV4145A is a low power controller for AC outlet
ground fault interrupters. These devices detect hazardous
grounding conditions, such as equipment (connected to
opposite phases of the AC line) in contact with a pool of
water and open circuits the line before a harmful or lethal
shock occurs.
Contained internally are a 26V zener shunt regulator, an op
amp, and an SCR driver. WIth the addition of two sense
transformers, a bridge rectifier, an SCR, a relay, and a few
additional components, the RV4145A will detect and protect
against both hot wire to ground and neutral wire to ground
faults. The simple layout and conventional design ensure
ease of application and long-term reliability.
Block Diagram
VFB
+Input
VREF
(+13V)
RV4145A
R1
10K
R2
10K
6.5V 6.5V 6.5V 6.5V
Op Amp Output
+VS
(+26V)
Ground
R3
4.7K
SCR Trigger
65-4145A-01
REV. 1.0.3 3/6/02







RV4145AMU pdf, 数据表
PRODUCT SPECIFICATION
Mechanical Dimensions
8-Lead Plastic DIP Package
Symbol
A
A1
A2
B
B1
C
D
D1
E
E1
e
eB
L
N
Inches
Min. Max.
.210
.015
.115 .195
.014 .022
.045 .070
.008 .015
.348 .430
.005
.300 .325
.240 .280
.100 BSC
.430
.115 .160
8°
Millimeters
Min. Max.
5.33
.38
2.93 4.95
.36 .56
1.14 1.78
.20 .38
8.84 10.92
.13
7.62 8.26
6.10 7.11
2.54 BSC
10.92
2.92 4.06
8°
Notes
4
2
2
5
RV4145A
Notes:
1. Dimensioning and tolerancing per ANSI Y14.5M-1982.
2. "D" and "E1" do not include mold flashing. Mold flash or protrusions
shall not exceed .010 inch (0.25mm).
3. Terminal numbers are for reference only.
4. "C" dimension does not include solder finish thickness.
5. Symbol "N" is the maximum number of terminals.
D
41
E1
5
D1
A
A1
B1
8
e
A2
L
B
E
C
eB
8 REV. 1.0.3 3/6/02














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