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U4793B-FP の電気的特性と機能

U4793B-FPのメーカーはTEMIC Semiconductorsです、この部品の機能は「Overload Monitoring with Resistive Load/ VT = 44.5 mV」です。


製品の詳細 ( Datasheet PDF )

部品番号 U4793B-FP
部品説明 Overload Monitoring with Resistive Load/ VT = 44.5 mV
メーカ TEMIC Semiconductors
ロゴ TEMIC Semiconductors ロゴ 




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U4793B-FP Datasheet, U4793B-FP PDF,ピン配置, 機能
U4793B
Overload Monitoring with Resistive Load, VT = 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 V4,6 = VS – VT
whereas VT = 44.5 mV. It is independent of the supply
voltage, VS. If the voltage drop across shunt resistor, Rsh,
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 Z3 and Z5 with a typical value of
VZ = 22 V.
A not used 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 Constant threshold
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
U4793B
U4793B–FP
Block Diagram
Package
DIP8
SO8
Remarks
VS
2
7
Rsh Z2
4
+
Rsh
8
0.6 VS
+
VBatt
5 OUT1
&
Z5
6
Load
+
–&
1
R1 150 W
Figure 1. Schematic and application circuit
3 OUT2
Z3
95 10608
TELEFUNKEN Semiconductors
Rev. A2, 06-Mar-97
1 (5)

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U4793B-FP pdf, ピン配列
Electrical Characteristics
VS = 9 to 15 V, Tamb = –40 to +95 °C, figure 1, unless otherwise specified
Parameters
Supply voltage
Internal Z-diode Z2
Current consumption
Output saturation voltage
Output Z-diodes Z3, Z5
Control signal threshold
Temperature coefficient of
control signal threshold
Threshold voltage
Input currents
Delay time
Test Conditions / Pin
Pin 2,7
Pin 2
VS = 12 V
Pin 1
measured at Pin 1 (GND)
VS = 9 V, I3,5 = 10 mA
Tamb = 25 °C
Pin 3,5
Pin 3,5
I3,5 = 1 mA, figure 3 Pin 4,6
Tamb = 25°C
Switch identification Pin 8
Pin 4,6
Switch-on
High to low
Switch-off
Low to high
Pin 8
Pin 3,5
Symbol
VS
VZ
I1
Vsat
VZ
–VT
TC
V8
II
td(on)
td(off)
Min
9
20
21
43
U4793B
Typ Max Unit
15 V
V
4.5 6 mA
0.5 V
V
44.5 46 mV
15
0.6 VS
100
5
mV/K
V
nA
mA
6 ms
30 ms
V4,6
(V)
12.00
11.90
V0
(V)
12
6
0
95 10615
td(off)
td(on)
10 20
30 40
50 60
t (ms)
Figure 2. Timing diagram
48
47
46 Tamb = 95 °C
45 25 °C
44 –40 °C
43
42
41
40
6 7 8 9 10 11 12 13 14 15 16
13308
VBatt (V)
Figure 3. Threshold voltage = f (VBatt and temperature)
TELEFUNKEN Semiconductors
Rev. A2, 06-Mar-97
3 (5)


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部品番号部品説明メーカ
U4793B-FP

Overload Monitoring with Resistive Load/ VT = 44.5 mV

TEMIC Semiconductors
TEMIC Semiconductors
U4793B-FP

Overload Monitoring with Resistive Load/ VT = 44.5 mV

TEMIC Semiconductors
TEMIC Semiconductors


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