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U2043B

ATMEL Corporation
Part Number U2043B
Manufacturer ATMEL Corporation
Description Flasher
Published Oct 27, 2008
Detailed Description Features Temperature and Voltage Compensated Frequency Warning Indication of Lamp Failure by Means of Frequency Doubling...
Datasheet PDF File U2043B PDF File

U2043B
U2043B

Overview
Features 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 • • • • www.
DataSheet4U.
com 1.
Description 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 1-1.
Block Diagram +VS + 49 6 C1 Measuring comparator 4 K 1 V 6-81 mV 7 Pilot lamp Pulse generator 3.
8 k Ω 8 K ...


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