Key facts
- Brand
- TEMIC
- Model
- U2044B
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-07
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TEMIC U2044B Dual Output Flasher Datasheet
The document describes the TEMIC U2044B, an integrated circuit used in relay-controlled automotive flashers. It features two separate outputs to control each side of the vehicle independently using only small control currents. The chip includes a built-in oscillator for flashing frequencies, protection against EMI and reverse polarity, and mechanisms to detect lamp outages by frequency doubling.
The datasheet provides detailed electrical characteristics, pin descriptions, functional block diagrams, and application circuit examples. It specifies parameters such as supply voltage ranges (9V to 18V), output currents up to 300 mA for relay drivers, and operating temperatures from -40°C to +100°C. Package information is provided for both DIP14 and SO14 formats.
TEMIC U2044B specifications
| Junction temperature | 150 °C |
|---|---|
| Ambient temperature range | -40 to +100 °C |
| Minimum lamp load | 1 W |
| Supply current (switches open) | < 10 mA |
All TEMIC U2044B documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the minimum lamp load required for flasher operation?
The minimum lamp load for flasher operation is 1 W.
How does the chip indicate a lamp outage?
Lamp outage is indicated by frequency doubling during direction mode.
What is the minimum lamp load for flasher operation?
The minimum lamp load required for the U2044B to operate as a flasher is 1 Watt.
How does the device indicate a lamp outage?
The U2044B indicates a lamp outage by switching to a frequency doubling mode.