ULN2803A是TI公司的一款外围驱动器和传动器产品，ULN2803A是达林顿晶体管阵列，本页介绍了ULN2803A的产品说明、应用、特性等，并给出了与ULN2803A相关的TI元器件型号供参考。
ULN2803A - 达林顿晶体管阵列 - 外围驱动器和传动器 - 其它接口 - TI公司（Texas Instruments，德州仪器）
- 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
- Compatible with ULN2800A Series
- Relay Drivers
- Hammer Drivers
- Lamp Drivers
- Display Drivers (LED and Gas Discharge)
- Line Drivers
- Logic Buffers
The ULN2803A device is a high-voltage, high-current Darlington transistor array. The device consists of eight NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of each Darlington pair is 500 mA. The Darlington pairs may be connected in parallel for higher current capability.
Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. The ULN2803A device has a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.
| PART NUMBER | PACKAGE (PIN) | BODY SIZE (NOM) |
|---|---|---|
| ULN2803 | SOIC (18) | 11.50 mm × 7.50 mm |
| PDIP (18) | 22.48 mm × 6.35 mm |
