The ULN2003A devices are high-voltage, high-current Darlington transistor arrays. Each consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability.
Features
- 500-mA-Rated Collector Current (Single Output)
- High-Voltage Outputs: 50 V
- Output Clamp Diodes
- Inputs Compatible With Various Types of Logic
- Relay-Driver
Applications
- Relay Drivers
- Stepper and DC Brushed Motor Drivers
- Lamp Drivers
- Display Drivers (LED and Gas Discharge)
- Line Drivers
- Logic Buffers
Specification
| Model | ULN2003A |
| Brand | Texas Instruments |
| Type | NPN Darlington Transistor |
| Package Style | SMD |
| Common-Emitter Saturation Voltage | 1.1V |
| Switching Voltage | 50V |
| Max. Collector Current | 500mA |
| Number of Channels | 7 |
| Polarity | NPN |
FAQs
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