Durable Slkor ULN2803A High Current Darlington Array for LED Display Relay and Stepper Motor Driving
Product Overview
The ULN2803 is a monolithic integrated low-voltage, high-current Darlington array. It contains eight independent Darlington driver circuits with built-in clamp diodes, suitable for driving inductive loads such as relays and stepper motors. By paralleling Darlington pairs, higher output current capability can be achieved. This circuit is widely applicable in relay driving, lighting driving, display screen driving (LED), stepper motor driving, and as logic buffers. Each Darlington driver in the ULN2803 has a 2.7K base resistor, allowing direct connection to TTL/CMOS circuits at a 5V operating voltage, enabling direct processing of data handled by standard logic buffers.
Product Attributes
- Brand: ULN2803
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: UL (implied by UL2803 designation, but not explicitly stated as a certification)
Technical Specifications
| Model | Package | Quantity per Reel | Operating Temperature | Input Voltage (VIN) | Output Voltage (VCE) | Output Current (IC) | Base Current (IB) | Storage Temperature (TS) | Soldering Temperature (TW) |
|---|---|---|---|---|---|---|---|---|---|
| ULN2803A | SOP18 | 2000 | -4085 | 30 V | 50 V | 500 mA | 25 mA | -65150 | 260,10s |
| ULN2803S | TSSOP20 | 2500 | -4085 | 30 V | 50 V | 500 mA | 25 mA | -65150 | 260,10s |
| ULN2803Q | QFN20 | 3000 | -4085 | 30 V | 50 V | 500 mA | 25 mA | -65150 | 260,10s |
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