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U4793B-FP Datasheet

  • U4793B-FP

  • Overload Monitoring with Resistive Load, VT = 44.5 mV

  • 5頁

  • TEMIC

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U4793B
Overload Monitoring with Resistive Load, V
T
= 44.5 mV
Description
The IC U4793B in bipolar circuit, is designed to monitor
overload or a short circuit in automotive or industrial
applications. The threshold is tied to V
4,6
= V
S
鈥?V
T
whereas V
T
= 44.5 mV. It is independent of the supply
voltage, V
S.
If the voltage drop across shunt resistor, R
sh
,
exceeds this value, the output is turned on, otherwise the
output is turned off.
Without supply voltage or open input Pin 8, the output is
turned off. The output breakdown voltage is determined
by the Z-diodes Z
3
and Z
5
with a typical value of
V
Z
= 22 V.
A not used comparator input must be connected to Pin 7.
Features
D
D
D
D
D
10 kV 鈥?ESD protection
Two comparators with common reference
Tight threshold tolerance
Constant threshold
NPN output
D
Interference and damage鈥損rotection
according to VDE 0839
D
EMI protection
D
Reversal polarity protection
D
Load-dump protection
Ordering Information
Extended Type Number
U4793B
U4793B鈥揊P
Package
DIP8
SO8
Remarks
Block Diagram
V
S
2
R
sh
Z
2
+
鈥?/div>
0.6 V
S
鈥?/div>
+
8
+
鈥?/div>
6
Z
3
1
Load
R
1
150
W
3
&
OUT2
&
Z
5
7
5
V
Batt
OUT1
4
R
sh
95 10608
Figure 1. Schematic and application circuit
TELEFUNKEN Semiconductors
Rev. A2, 06-Mar-97
1 (5)

U4793B-FP相關(guān)型號PDF文件下載

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