U4793B-MY Atmel, U4793B-MY Datasheet

IC CURRENT MONITOR 8DIP

U4793B-MY

Manufacturer Part Number
U4793B-MY
Description
IC CURRENT MONITOR 8DIP
Manufacturer
Atmel
Datasheet

Specifications of U4793B-MY

Function
Current Monitor
Voltage - Input
9 ~ 15 V
Current - Output
20mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
8-DIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Accuracy
-
Sensing Method
-
Features
1. Description
The bipolar U4793B is designed to monitor overload or a short circuit in automotive or
industrial applications. The threshold is tied to V
independent of the supply voltage, V
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 break-
down voltage is determined by the Z-diodes Z
An unused comparator input must be connected to pin 7.
2. Block Diagram
Figure 2-1.
10 kV – ESD Protection
Two Comparators with Common Reference
Tight Threshold Tolerance
Constant Threshold
NPN Output
Interference and Damage-protection According to VDE 0839 and
ISO/CD 7637 EMI Protection
Reversal Polarity Protection
Load-dump Protection
R
R
Schematic and Application Circuit
sh
sh
Load
4
8
6
Z
2
2
V S
0.6 V S
S.
If the voltage drop across shunt resistor, R
7
R 1
3
and Z
+
-
-
+
+
-
4,6
1
150
= V
5
S
with a typical value of V
&
&
– V
T
where V
Z 5
Z 3
5
3
V
OUT1
OUT2
T
Batt
= 44.5 mV. It is
Z
= 22V.
sh
,
Current Monitor
IC
U4793B
Rev. 4557B–AUTO–09/05

Related parts for U4793B-MY

U4793B-MY Summary of contents

Page 1

... Reversal Polarity Protection • Load-dump Protection 1. Description The bipolar U4793B is designed to monitor overload or a short circuit in automotive or industrial applications. The threshold is tied to V independent of the supply voltage, V 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 break- down voltage is determined by the Z-diodes Z An unused comparator input must be connected to pin 7 ...

Page 2

... Pin Configuration Figure 3-1. Pinning DIP8/SO8 Table 3-1. Pin Description Pin Symbol 1 GND OUT2 4 IN1 5 OUT1 6 IN2 7 VRef 8 Input switch U4793B 2 GND 1 8 Input switch VRef OUT2 3 6 IN2 IN1 4 5 OUT1 Function Reference point, ground Supply voltage Output 2 Input 1 Output 1 ...

Page 3

... Value 16.5 1 220 150 420 360 690 560 –40 to +125 –55 to +125 150 Value 110 160 Figure 2-1 on page 1) Min. Typ. Max 3.5 4.8 6 2.8 3.4 6 2.0 2.6 3.2 1 U4793B Unit °C °C °C Unit K/W K/W Unit Type ...

Page 4

... High to low 5.3 T amb 5.4 T Delay time amb 5.5 Switch-off T amb Low to high 5.6 T amb *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter U4793B 4 Figure 2-1 on page Pin Symbol = 9V 25° mA, Figure 6 –V = –40° mA, Figure 6 – ...

Page 5

... Figure 6-1. Figure 6-2. 4557B–AUTO–09/05 Timing Diagram V 4,6 (V) 12.00 11. d(off) ( Threshold Voltage = f (V and Temperature) Batt 6.0 7.0 8.0 9.0 10.0 11.0 V Batt t d(on 125°C amb 95°C 25°C -40°C 12.0 13.0 14.0 15.0 16 U4793B 5 ...

Page 6

... Ordering Information Extended Type Number U4793B-MY U4793B-MFPY U4793B-MFPG3Y 8. Package Information Package SO8 Dimensions in mm U4793B 6 Package Remarks DIP8 Tube, Pb-free SO8 Tube, Pb-free SO8 Taped and reeled, Pb-free ific a tio 5.00 4.85 1.4 0.25 0.4 0.10 1.27 3. technical drawings according to DIN ...

Page 7

... Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4557B-AUTO-09/05 4557B–AUTO–09/05 History Put datasheet in a new template Pb-free logo on page 1 added Ordering Information on page 6 changed U4793B 7 ...

Page 8

... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...

Related keywords