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Datasheet U643 Equivalent ( PDF ) |
| N.º | Número de pieza | Descripción | Fabricantes | |
| 5 | U643 | Flasher/ 30-mohm Shunt U643B
Flasher, 30-mW Shunt
Description
The bipolar integrated circuit U643B 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.
Features
D Temperature and supply voltage co |
 ATMEL Corporation |
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| 4 | U6432B | Low-power Flasher IC with 18-mOMShunt Features
• Temperature and Voltage Compensated Frequency • Warning Indication of Lamp Failure by Means of Frequency Doubling only in Direction • • • • • • •
Mode Voltage Dependence of the Car Indicator Lamps also Compensated for Lamp Failure Relay Output with High Current-carrying |
ATMEL Corporation |
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| 3 | U6433B | Flasher/ 18-m Shunt/ Frequency Doubling Disabling U6433B
Flasher, 18-mW Shunt, Frequency Doubling Disabling
Description
The design of the U6433B is mainly based on the good results of U6043B in terms of EMC (Electro Magnetic Capability) and protection features. It includes an additional 8-mV comparator and a logical connection with the frequency do |
 TEMIC Semiconductors |
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| 2 | U6433B | Frequency Doubling Disabling Features
• • • • • • • •
Temperature and Voltage Compensated Frequency Warning Indication of Lamp Failure by Means of Frequency Doubling can be Disabled Voltage Dependence of the Car Indicator Lamps Compensated for Lamp Failure Relay Output with High Current Carrying Capacity and Low |
ATMEL Corporation |
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