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Description
- Eight Darlington Transistors: The ULN2804 contains eight independent NPN Darlington transistor pairs with common emitters.
- High Current Output: Each Darlington output can sink up to 500 mA of current.
- High Voltage Output: The maximum output voltage is 50V.
- Integral Suppression Diodes: Each output has a built-in diode to protect the circuit from inductive flyback voltage when switching inductive loads.
- Input Compatibility: The inputs are compatible with TTL, DTL, PMOS, or CMOS logic levels.
- Package: It is typically available in a 18-pin DIP (Dual In-line Package) or a 20-pin SOIC (Small Outline Integrated Circuit) package.
- Operating Temperature: The device can operate in a temperature range of -20°C to +85°C.
- Output configuration: The outputs are open-collector, meaning the output pin is connected to the collector of the transistor and requires an external pull-up resistor to define the output voltage level.
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