U2044B-MFPG3Y-66

U2044B-MFPG3Y-66 Datasheet


The integrated circuit U2044B is used in relay-controlled automotive flashers. With two output stages, each side of the vehicle is controlled separately. A left and a right direction indicator input with only a small control current makes switch contacts for small loads possible.

Part Datasheet
U2044B-MFPG3Y-66 U2044B-MFPG3Y-66 U2044B-MFPG3Y-66 (pdf)
Related Parts Information
U2044B-MY U2044B-MY U2044B-MY
PDF Datasheet Preview
• Temperature and Supply Voltage Compensated Flashing Frequency
• Frequency Doubling Indicates Lamp Outage
• Two Relay Driver Outputs with High Current-carrying Capacity and Low Saturation

The integrated circuit U2044B is used in relay-controlled automotive flashers. With two output stages, each side of the vehicle is controlled separately. A left and a right direction indicator input with only a small control current makes switch contacts for small loads possible.

The separate hazard warning input simplifies the construction of the hazard switch. Lamp outage is indicated by frequency doubling during direction mode. Thanks to extreme low current consumption the U2044B can be directly connected to the battery.

Dual Output Flasher

U2044B

Figure Block Diagram

C1 µF
14 R1 82

V S-6 V

V S-81 mV

RShunt 30

Contact
6 V Ref1

V Ref2

V S /2

R9 47

R8 47 k
13 GND 10

Hazard warning

Relay 12
right
left
30 15 31
12700
2 U2044B

Pin Configuration

Figure Pinning DIP14/SO14

OSC 1
14 OSC

SIL 2
13 OR2

SIR 3
12 VS

SIHW 4 U2044B 11 OR1
10 GND

CR1 6

CR2 7

Table Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Pin Description

Symbol Function

Oscillator
Ordering Information

Extended Type Number U2044B-MY U2044B-MFPY U2044B-MFPG3Y

Package Information

Package DIP14 SO14

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

Package DIP14

Dimensions in mm
technical drawings according to DIN specifications

Package SO14

Dimensions in mm
technical drawings according to DIN specifications

History
4721B-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 6 added
• Ordering Information on page 7 changed
8 U2044B

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Printed on recycled paper.
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Datasheet ID: U2044B-MFPG3Y-66 519452