ULN2803 8 Darlington Transistor Arrays IC (DIP-18 Package)
Specification:-
- Output sustaining voltage: -0.5 to 50 V
- Output current: 500 mA/ch
- Input voltage: -0.5 to 30 V
- Clamp diode reverse voltage: 50 V
- Clamp diode forward current: 500 mA
- Power dissipation: 1.47 W
- Operating temperature: -40 to 85 °C
- Storage temperature: -55 to 150 °C
SKU: LZ8524A
ULN2803 8 Darlington Transistor Arrays IC (DIP-18 Package)
The ULN2803 is an 8-channel Darlington transistor array IC in a DIP-18 package, designed to drive high-voltage, high-current loads such as relays, motors, and solenoids. It is specifically used to interface low-voltage logic circuits, such as microcontrollers, with higher-power devices. This IC integrates eight Darlington pairs with saturation-mode outputs, providing high current gain and enabling switching up to 50V and 500mA per channel. Each output channel can sink current, and it features clamp diodes to suppress inductive voltage spikes, ensuring the protection of both the IC and external components during switching operations. The ULN2803 is ideal for driving loads with high switching power requirements while minimizing the need for external components. It is widely used in applications like industrial automation systems, consumer electronics, and automotive electronics. The IC has a low input control current, which makes it efficient when connected to logic-level control circuits. In addition to relay driving, it is also used in stepper motor drivers, LED matrices, and lamp and lighting controllers.
Features:-
- Low power consumption
- Compact and Easy Integration
- Internal clamping diodes for protection against voltage spikes
- Low input control current for efficient interfacing with logic circuits
