U6043B-MFPY

U6043B-MFPY Datasheet


Part Datasheet
U6043B-MFPY U6043B-MFPY U6043B-MFPY (pdf)
Related Parts Information
U6043B-MY U6043B-MY U6043B-MY
U6043B-MFPG3Y U6043B-MFPG3Y U6043B-MFPG3Y
U2043B-MFPG3Y U2043B-MFPG3Y U2043B-MFPG3Y
U2043B-MFPY U2043B-MFPY U2043B-MFPY
U2043B-MY U2043B-MY U2043B-MY
PDF Datasheet Preview
• Temperature and Voltage Compensated Frequency
• Warning Indication of Lamp Failure by Means of Frequency Doubling
• Minimum Lamp Load for Flasher Operation 10W
• Relay Output with High Current Carrying Capacity and Low Saturation

Voltage
• Low Susceptibility to EMI

The integrated circuit U2043B is used in relay-controlled automotive flashers where a high EMC level is required. A lamp outage is indicated by frequency doubling during hazard mode as well as direction mode. The pilot lamp can be connected either to VBatt or GND.

Figure Block Diagram
6 Measuring comparator

K 1 V 6-81 mV

R3 30 m Shunt
+ VS + 49

Pilot lamp 5 W

Pulse
generator

K 3 V 6-5 V 5
49 a-Comparator

IC Ground

Relay

GND - 31
5 W 21 W 21 W
21 W 21 W 5 W

Indicator lamps

Pilot lamps

Flasher, 30 Shunt, Pilot Lamp to GND or VBatt

U2043B

Pin Configuration

Figure Pinning DIP8/SO8

GND 1

VS 2 REL 3

U2043B
7 LD 6 VS

OSC 4
5 OSC

Table Pin 1 2 3 4 5 6 7 8

Pin Description Symbol GND VS REL OSC VS LD SI

Function IC ground Supply voltage VS Relay driver C1 Oscillator R1 Oscillator Supply voltage VS Lamp failure detection Start input 49a
2 U2043B

U2043B

Functional Description

GND Pin 1

Supply Voltage, VS Power Pin 2

The arrangement of the supply connections to pin 2 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

Relay Control Output Driver, Pin 3

The relay control output is a high-side driver with a low saturation voltage and capable of driving a typical automotive relay with a minimum coil resistance of
Ordering Information

Extended Type Number U2043B-MY U2043B-MFPY U2043B-MFPG3Y

Package Information

Package DIP8 SO8

Remarks Tubed, Pb-free Tubed, Pb-free Taped and reeled, Pb-free

Package SO8

Dimensions in mm

U2043B
technical drawings according to DIN specifications

Package DIP8 Dimensions in mm
max.
nom. B
3 x = nom.
max.

Drawing-No. Issue 1;
technical drawings according to DIN specifications
8 U2043B

U2043B

History
4720B-AUTO-09/05
• Put datasheet in a new template
• Pb-free logo on page 1 added
• New heading rows in Table “Absolute Maximum Rating” on page 5 added
• Ordering Information on page 7 changed

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Datasheet ID: U6043B-MFPY 519451