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U479B PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 U479B
기능 Automotive Lamp Outage Monitor/ VT = 8 mV
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U479B 데이터시트, 핀배열, 회로
U479B
Automotive Lamp Outage Monitor, VT = 8 mV
Description
The monolithic integrated bipolar circuit, U479B, 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 V4,6 = VS – VT whereas 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. A not used comparator input must be
connected to Pin 7.
Features
D 2 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
U479B
U479B–FP
Package
DIP8
SO8
Remarks
Block Diagram
Rsh
Rsh
VS
2
Z2
4
0.6 VS
8
6
7
+
+
+
&
&
Lamps
1
R1 150 W
Figure 1. Schematic and application circuit
VBatt
5 OUT1
3 OUT2
95 10380
TELEFUNKEN Semiconductors
Rev. A2, 04-Feb-97
1 (5)




U479B pdf, 반도체, 판매, 대치품
U479B
Dimensions in mm
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, 04-Feb-97

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