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U4791B PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 U4791B
기능 Automotive Lamp Outage Monitor/ VT = 53 mV
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U4791B 데이터시트, 핀배열, 회로
U4791B
Automotive Lamp Outage Monitor, VT = 53 mV
Description
The monolithic integrated bipolar circuit, U4791B, is de-
signed as a monitor for lamp failure in automobiles. The
comparator threshold is matched to the PTC
characteristic of incandescent lamps. The threshold is
tied to a typical value of V4,6 = VS – VT whereas
VT = 53 mV.
The integrated circuit is recommended for the application
of parallel connected lamps. If the voltage drop across
shunt resistor, Rsh, exceeds 53 mV, the output is turned
off, otherwise the output is turned on. Without supply
voltage or open input Pin 8 the output is turned off.
A not used comparator must be connected to Pin 7.
Features
D 10 kV–ESD protection
D Two comparators with common reference
D Tight threshold tolerance
D Threshold matched to PTC characteristic
of incandescent lamps
D Temperature compensated
D NPN output
D Interference and damage–protection
according to VDE 0839
D EMI protection
D Reversal polarity protection
D Load-dump protection
Ordering Information
Extended Type Number
U4791B
U4791B–FP
Block Diagram
VS
2
Rsh Z2
4
Rsh
8
6
Package
DIP8
SO8
7
0.6 VS
+
+
+
&
&
Lamps
1
R1 150 W
Remarks
VBatt
5 OUT1
Z5
3 OUT2
Z3
95 10613
Figure 1. Schematic and application circuit
TELEFUNKEN Semiconductors
Rev. A2, 17-Dec-96
1 (5)




U4791B pdf, 반도체, 판매, 대치품
U4791B
Package Information
Package DIP8
Dimensions in mm
9.8
9.5
1.64
1.44
7.77
7.47
4.8 max
0.5 min 3.3
0.58
0.48 2.54
7.62
85
6.4 max
0.36 max
9.8
8.2
technical drawings
according to DIN
specifications
13021
14
Package SO8
Dimensions in mm
5.00
4.85
5.2
4.8
3.7
1.4
0.4
0.25 0.2
0.10 3.8
1.27 6.15
3.81 5.85
85
4 (5)
technical drawings
according to DIN
specifications
85
13034
TELEFUNKEN Semiconductors
Rev. A2, 17-Dec-96

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부품번호상세설명 및 기능제조사
U4791B

Automotive Lamp Outage Monitor/ VT = 53 mV

TEMIC Semiconductors
TEMIC Semiconductors
U4791B-FP

Automotive Lamp Outage Monitor/ VT = 53 mV

TEMIC Semiconductors
TEMIC Semiconductors

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