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U4791B-FP Datasheet

  • U4791B-FP

  • Automotive Lamp Outage Monitor, VT = 53 mV

  • 5頁

  • TEMIC

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U4791B
Automotive Lamp Outage Monitor, V
T
= 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 V
4,6
= V
S
鈥?V
T
whereas
V
T
= 53 mV.
The integrated circuit is recommended for the application
of parallel connected lamps. If the voltage drop across
shunt resistor, R
sh
, 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
D
D
D
10 kV鈥揈SD protection
Two comparators with common reference
Tight threshold tolerance
Threshold matched to PTC characteristic
of incandescent lamps
D
NPN output
D
Interference and damage鈥損rotection
according to VDE 0839
D
Temperature compensated
D
EMI protection
D
Reversal polarity protection
D
Load-dump protection
Ordering Information
Extended Type Number
U4791B
U4791B鈥揊P
Package
DIP8
SO8
Remarks
Block Diagram
V
S
2
R
sh
Z
2
鈥?/div>
+
0.6 V
S
8
鈥?/div>
+
6
Z
3
1
Lamps
R
1
150
W
3
&
OUT2
&
Z
5
鈥?/div>
+
7
5
V
Batt
OUT1
4
R
sh
95 10613
Figure 1. Schematic and application circuit
TELEFUNKEN Semiconductors
Rev. A2, 17-Dec-96
1 (5)

U4791B-FP相關(guān)型號PDF文件下載

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  • 英文版
    Automotive Lamp Outage Monitor, VT = 8 mV
    TEMIC
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    Automotive Lamp-outage Monitor IC
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  • 英文版
    Automotive Lamp Outage Monitor, VT = 8 mV
    TEMIC
  • 英文版
    Automotive Lamp Outage Monitor, VT = 8 mV
    TEMIC [TEM...
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL [ATM...
  • 英文版
    Automotive Lamp Outage Monitor, VT = 53 mV
    TEMIC

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