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 U6432B-MFPG3 (pdf)
Related Parts Information
U6432B-MFP 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

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Printed on recycled paper.
More datasheets: BK/ABC-25 | BK/ABC-20 | BK/ABC-1-1/2 | BK/ABC-2-1/2 | ABC-13 | BK/ABC-1 | ABC-1-1/4 | ABC-1/16 | 76000957 | U6432B-MFP


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Datasheet ID: U6432B-MFPG3 519515