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U644B-FP

TEMIC Semiconductors
Part Number U644B-FP
Manufacturer TEMIC Semiconductors
Description Flasher/ 18-m Shunt/ Extremly Low Current Consumption
Published Apr 16, 2005
Detailed Description U644B Flasher, 18-mW Shunt, Extremly Low Current Consumption Description The bipolar integrated circuit, U644B, is used ...
Datasheet PDF File U644B-FP PDF File

U644B-FP
U644B-FP

Overview
U644B Flasher, 18-mW Shunt, Extremly Low Current Consumption Description The bipolar integrated circuit, U644B, is used in relaycontrolled automotive flashers where a high level EMC is required.
Lamp outage is indicated by frequency doubling during hazard warning as well as direction mode.
If the flasher module provides an 4-pin connector the control pin of U644B (Pin 6) can be used to operate the IC in an extremly low-current mode.
Features D Frequency doubling indicates lamp outage D Frequency independent of temperature and voltage change D Minimum lamp load for flasher operation: D Very low susceptibility to EMI 1 W D Relay driver output with high current-carrying capacity and low sa...


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