U6432B-MFPG3

U6432B-MFPG3 Datasheet

The U6432B is an advanced automotive flasher IC which provides low standby current. Its basic function is equal to Atmel’s flasher IC U6043B but low current consumption and frequency doubling disabling make outstanding differences.

Part	Datasheet
U6432B-MFPG3	U6432B-MFPG3 (pdf)

Related Parts	Information
U6432B-MFP	U6432B-MFP

PDF Datasheet Preview
• Temperature and Voltage Compensated Frequency • Warning Indication of Lamp Failure by Means of Frequency Doubling only in Direction Mode • Voltage Dependence of the Car Indicator Lamps also Compensated for Lamp Failure • Relay Output with High Current-carrying Capacity and Low Saturation Voltage • Load-dump Protection • Minimum Lamp Load for Flasher Operation 1 W • Low Susceptibility to EMI • Extremely Low Standby Current of 10 µA • Protection According to ISO/TR 7637/1 Level 4 with External Capacitor C2 The U6432B is an advanced automotive flasher IC which provides low standby current. Its basic function is equal to Atmel’s flasher IC U6043B but low current consumption and frequency doubling disabling make outstanding differences. Low-power Flasher IC with 18-mW Shunt U6432B Block Diagram Figure Car Flasher Application C1 µF 4 R1 82 kW + K1 - 49 a PL >1 W V S-6 V VS R2 Shunt R3 18 mW + V S-57 mV V S-57 mV T1 V D2 D1 21 V C2 10 µF R4 kW R6 470 W 2 U6432B Pin Configuration Figure Pinning GND 1 VS 2 REL 3 U6432B 7 LD 6 VS OSC 4 5 OSC Pin Description Function IC ground Supply voltage Relay driver Oscillator Supply voltage Lamp failure detection Start input 49a U6432B Functional Description Pin 1, GND Pin 2, Supply Voltage, VS power Pin 3, Relay Control Output Driver The arrangement of the supply connections to Pin 2 and 6 must be so as to ensure that on the connection printed circuit board PCB , the resistance of VS to Pin 6 is lower than that to Pin The relay control output is a high-side driver with a low saturation voltage. It is capable of driving a typical automotive relay with a minimum coil resistance of 60 W. Pin 4 and 5, Oscillator Ordering Information Extended Type Number U6432B-FP Package Information DIP8 Package DIP8 SO8 Remarks U6432B Package SO8 Dimensions in mm technical drawings according to DIN specifications 8 U6432B Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 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 Tel 1 408 441-0311 Fax 1 408 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 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 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 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 e-mail Web Site Disclaimer Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. Atmel Corporation All rights reserved. and combinations thereof are the registered trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be the trademarks of others. Printed on recycled paper.

PDF Datasheet Preview

• Temperature and Voltage Compensated Frequency
• Warning Indication of Lamp Failure by Means of Frequency Doubling only in Direction

Mode
• Voltage Dependence of the Car Indicator Lamps also Compensated for Lamp Failure
• Relay Output with High Current-carrying Capacity and Low Saturation Voltage
• Load-dump Protection
• Minimum Lamp Load for Flasher Operation 1 W
• Low Susceptibility to EMI
• Extremely Low Standby Current of 10 µA
• Protection According to ISO/TR 7637/1 Level 4 with External Capacitor C2

The U6432B is an advanced automotive flasher IC which provides low standby current. Its basic function is equal to Atmel’s flasher IC U6043B but low current consumption and frequency doubling disabling make outstanding differences.

Low-power Flasher IC with 18-mW Shunt

U6432B

Block Diagram

Figure Car Flasher Application

C1 µF
4 R1 82 kW
+ K1 -
49 a PL >1 W

V S-6 V

VS R2

Shunt

R3 18 mW
+ V S-57 mV

V S-57 mV

T1 V D2

D1 21 V

C2 10 µF

R4 kW

R6 470 W
2 U6432B

Pin Configuration

Figure Pinning

GND 1

VS 2 REL 3

U6432B
7 LD 6 VS

OSC 4
5 OSC

Pin Description

Function IC ground Supply voltage Relay driver Oscillator Supply voltage Lamp failure detection Start input 49a

U6432B

Functional Description

Pin 1, GND

Pin 2, Supply Voltage, VS power

Pin 3, Relay Control Output Driver

The arrangement of the supply connections to Pin 2 and 6 must be so as to ensure that on the connection printed circuit board PCB , the resistance of VS to Pin 6 is lower than that to Pin

The relay control output is a high-side driver with a low saturation voltage. It is capable of driving a typical automotive relay with a minimum coil resistance of 60 W.

Pin 4 and 5, Oscillator
Ordering Information

Extended Type Number U6432B-FP

Package Information

DIP8

Package DIP8 SO8

Remarks

U6432B

Package SO8

Dimensions in mm
technical drawings according to DIN specifications
8 U6432B

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

Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 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 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 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
e-mail Web Site

Disclaimer Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems.

Atmel Corporation All rights reserved. and combinations thereof are the registered trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be the 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 U6432B-MFPG3 Datasheet file may be downloaded here without warranties.

Datasheet ID: U6432B-MFPG3 519515