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U4790B PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 U4790B
기능 Automotive Lamp-Outage Monitor
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U4790B 데이터시트, 핀배열, 회로
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U4790B
Automotive Lamp-Outage Monitor, VT = 8 mV, VZ(3,5) = 22 V
Description
The bipolar IC U4790B is designed 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
where VT = 8 mV.
If the voltage drop across shunt resistor, Rsh, exceeds
8 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. An unused comparator input 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
U4790B
Package
DIP8
Remarks
Block Diagram
Rsh
VS
2
Z2
4
Rsh
8
0.6 VS
6
7
+
+
+
&
&
Lamps
1
R1 150 W
Figure 1. Schematic and application circuit
VBatt
5 OUT1
Z5
3 OUT2
Z3
95 10606
TELEFUNKEN Semiconductors
Rev. A2, 03-Dec-97
1 (5)
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U4790B pdf, 반도체, 판매, 대치품
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U4790B
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
4 (5)
DataSheet4 U .com
TELEFUNKEN Semiconductors
Rev. A2, 03-Dec-97

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관련 데이터시트

부품번호상세설명 및 기능제조사
U4790B

Automotive Lamp-Outage Monitor

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