U4793B-MFPG3Y

U4793B-MFPG3Y Datasheet

The bipolar U4793B is designed to monitor overload or a short circuit in automotive or industrial applications. The threshold is tied to V4,6 = VS VT where VT = 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.

Part	Datasheet
U4793B-MFPG3Y	U4793B-MFPG3Y (pdf)

Related Parts	Information
U4793B-MY	U4793B-MY
U4793B-MFPY	U4793B-MFPY
U4793B-MFPG3	U4793B-MFPG3

PDF Datasheet Preview
• 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 The bipolar U4793B is designed to monitor overload or a short circuit in automotive or industrial applications. The threshold is tied to V4,6 = VS VT where VT = 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 = 22V. An unused comparator input must be connected to pin Current Monitor IC U4793B Block Diagram Figure Schematic and Application Circuit Load 1 R1 150 VBatt 5 OUT1 Z5 3 OUT2 Z3 Pin Configuration Figure Pinning DIP8/SO8 Table Pin 1 2 3 4 5 6 7 8 Pin Description Symbol GND VS OUT2 IN1 OUT1 IN2 VRef Input switch GND 1 VS 2 OUT2 3 IN1 4 8 Input switch 7 VRef 6 IN2 5 OUT1 Function Reference point, ground Supply voltage Output 2 Input 1 Output 1 Input 2 Reference voltage Input switch 2 U4793B U4793B Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Parameters Value Unit Supply voltage pins 2 and 7 Current consumption t = 2 ms, measured at pin 1 GND , pin 1 Output current, pins 3 and 5 I3,5 Input voltage reference point pin 7, pins 4 and 6 Power dissipation, Tamb = 125°C DIP8 SO8 Ptot 220 150 Tamb = 95°C DIP8 Ptot 420 360 Ordering Information Extended Type Number U4793B-MY U4793B-MFPY U4793B-MFPG3Y Package DIP8 SO8 Package Information Package D IP8 D im en sion s in m 9 1 4 1 4 Remarks Tube, Pb-free Tube, Pb-free Taped and reeled, Pb-free m ax 9 8 te chnical draw ings accordin g to D IN s p e c ific a tio n s Package SO8 Dimensions in mm 6 U4793B technical drawings according to DIN specifications U4793B History 4557B-AUTO-09/05 • Put datasheet in a new template • Pb-free logo on page 1 added • Ordering Information on page 6 changed Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel 41 26-426-5555 Fax 41 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel 852 2721-9778 Fax 852 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel 33 2-40-18-18-18 Fax 33 2-40-18-19-60 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel 33 4-42-53-60-00 Fax 33 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel 44 1355-803-000 Fax 44 1355-242-743 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel 49 71-31-67-0 Fax 49 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel 33 4-76-58-30-00 Fax 33 4-76-58-34-80 Literature Requests 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 CONDITIONS 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. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. Atmel Corporation All rights reserved. logo and combinations thereof, Everywhere You and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Printed on recycled paper.

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• 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

The bipolar U4793B is designed to monitor overload or a short circuit in automotive or industrial applications. The threshold is tied to V4,6 = VS VT where VT = 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 = 22V.

An unused comparator input must be connected to pin

Current Monitor IC

U4793B

Block Diagram

Figure Schematic and Application Circuit

Load
1 R1 150

VBatt 5 OUT1 Z5
3 OUT2 Z3

Pin Configuration

Figure Pinning DIP8/SO8

Table Pin 1 2 3 4 5 6 7 8

Pin Description Symbol GND VS OUT2 IN1 OUT1 IN2 VRef

Input switch

GND 1 VS 2

OUT2 3 IN1 4
8 Input switch 7 VRef 6 IN2 5 OUT1

Function Reference point, ground Supply voltage Output 2 Input 1 Output 1 Input 2 Reference voltage Input switch
2 U4793B

U4793B

Absolute Maximum Ratings

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Parameters

Value

Unit

Supply voltage pins 2 and 7

Current consumption
t = 2 ms, measured at pin 1 GND , pin 1

Output current, pins 3 and 5

I3,5

Input voltage reference point pin 7, pins 4 and 6

Power dissipation, Tamb = 125°C

DIP8 SO8

Ptot
220 150

Tamb = 95°C DIP8

Ptot
420 360
Ordering Information

Extended Type Number U4793B-MY U4793B-MFPY U4793B-MFPG3Y

Package DIP8 SO8

Package Information

Package D IP8

D im en sion s in m
9 1 4 1 4

Remarks Tube, Pb-free Tube, Pb-free Taped and reeled, Pb-free
m ax 9 8
te chnical draw ings accordin g to D IN s p e c ific a tio n s

Package SO8

Dimensions in mm
6 U4793B
technical drawings according to DIN specifications

U4793B

History
4557B-AUTO-09/05
• Put datasheet in a new template
• Pb-free logo on page 1 added
• Ordering Information on page 6 changed

Atmel Corporation
2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600

Regional Headquarters

Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel 41 26-426-5555 Fax 41 26-426-5500

Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel 852 2721-9778 Fax 852 2722-1369

Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581

Atmel Operations

Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314

Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314

La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel 33 2-40-18-18-18 Fax 33 2-40-18-19-60

ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel 33 4-42-53-60-00 Fax 33 4-42-53-60-01
1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759

Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel 44 1355-803-000 Fax 44 1355-242-743

RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel 49 71-31-67-0 Fax 49 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759

Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom

Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel 33 4-76-58-30-00 Fax 33 4-76-58-34-80

Literature Requests

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 CONDITIONS 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. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life.

Atmel Corporation All rights reserved. logo and combinations thereof, Everywhere You and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others.

Printed on recycled paper.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived U4793B-MFPG3Y Datasheet file may be downloaded here without warranties.

Datasheet ID: U4793B-MFPG3Y 519500