The ULN2003 IC in SMD (Surface Mount Device) package is a versatile integrated circuit featuring seven darlington transistor arrays. Designed for high-voltage and high-current applications, each darlington pair within the ULN2003 IC is capable of driving loads up to 500mA and withstands voltages of up to 50V. This IC is commonly utilized for interfacing low-level logic signals with high-power loads such as relays, motors, solenoids, and lamps in a wide range of electronic applications.
Specifications:
| Specification | Value |
|---|---|
| Number of Darlington Pairs | 7 |
| Maximum Output Current per Pair | 500mA |
| Maximum Output Voltage | 50V |
| Suppression Diodes | Integral to each darlington pair |
| Package | SMD (Surface Mount Device) |
| Thermal Shutdown | May feature thermal shutdown protection |
| Input Compatibility | TTL and CMOS logic levels compatible |
Key Features:
- High-Voltage and High-Current Capability: Each darlington pair can handle significant loads, making it suitable for driving various inductive and resistive loads.
- Integral Suppression Diodes: Built-in diodes provide protection against back electromotive force generated by inductive loads, enhancing reliability.
- Multiple Outputs: With seven darlington pairs, the ULN2003 IC offers multiple outputs, enabling simultaneous control of multiple loads.
- TTL/CMOS Compatibility: It is compatible with both TTL and CMOS logic levels, simplifying interfacing with microcontrollers and other digital logic circuits.
- Compact SMD Package: The SMD package makes it suitable for surface-mount assembly, saving space and enabling efficient PCB design.
- Thermal Shutdown Protection: Some variants may feature thermal shutdown protection to prevent damage due to overheating, ensuring device longevity and reliability
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