Overview
The ULN2803APG,CN is a high-voltage, high-current Darlington transistor array produced by Toshiba Semiconductor and Storage. This device consists of eight NPN Darlington pairs, each rated at 500mA collector current and capable of handling high-voltage outputs up to 50V. The ULN2803APG,CN is designed to drive a wide range of loads, including relays, solenoids, lamps, and small motors, making it versatile for various industrial and consumer applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector to Emitter Voltage (VCE) | 50 | V |
| Collector Current (IC) | 500 | mA |
| Input Voltage (VI) | 30 | V |
| Output Clamp Current (IOK) | 500 | mA |
| Operating Free-Air Temperature Range (TA) | -30 to +105 | °C |
| Thermal Resistance Junction-to-Ambient (θJA) | 63 | °C/W |
| Thermal Resistance Junction-to-Case (θJC) | 12 | °C/W |
| Storage Temperature Range (TSTG) | -40 to 150 | °C |
Key Features
- 500mA-rated collector current per output
- High-voltage outputs: 50V
- Output clamp diodes for inductive load protection
- Inputs compatible with various types of logic (TTL, CMOS)
- Series base resistor for each Darlington pair (2.7kΩ)
- Common emitter and open collector outputs
- Available in SOP18 and QFN20 packages
Applications
- Factory automation and control
- Building automation
- Appliances
- IP network cameras
- HVAC valve and actuator control
- Relay, solenoid, and lamp driving
- Stepper motor driving
- Display drivers (LED and gas discharge)
- Line drivers and logic buffers
Q & A
- What is the maximum collector current per output of the ULN2803APG,CN?
The maximum collector current per output is 500mA. - What is the maximum voltage rating for the ULN2803APG,CN?
The maximum voltage rating is 50V. - What types of logic are the inputs of the ULN2803APG,CN compatible with?
The inputs are compatible with TTL and CMOS logic. - What is the purpose of the output clamp diodes in the ULN2803APG,CN?
The output clamp diodes are used to suppress the kickback voltage from inductive loads. - Can the outputs of the ULN2803APG,CN be paralleled for higher current capability?
Yes, the outputs can be paralleled to increase the current handling capability. - What are the typical applications of the ULN2803APG,CN?
Typical applications include relay drivers, solenoid drivers, lamp drivers, and stepper motor drivers. - What are the available package types for the ULN2803APG,CN?
The device is available in SOP18 and QFN20 packages. - What is the thermal resistance junction-to-ambient of the ULN2803APG,CN?
The thermal resistance junction-to-ambient is 63°C/W. - What is the operating free-air temperature range of the ULN2803APG,CN?
The operating free-air temperature range is -30°C to +105°C. - What is the storage temperature range of the ULN2803APG,CN?
The storage temperature range is -40°C to 150°C.
