Overview
The ULN2002A, produced by STMicroelectronics, is a high-voltage, high-current Darlington array. This device contains seven open collector Darlington pairs with common emitters, making it versatile for driving a wide range of loads. It is compatible with various logic families, specifically designed for 14-25 V PMOS applications. The ULN2002A is available in both 16-pin DIP (PDIP-16) and small outline (SO-16) packages, each featuring a copper leadframe to reduce thermal resistance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current per Driver | 500 mA (600 mA peak) | mA |
| Output Voltage | 50 V | V |
| Input Voltage | 30 V | V |
| Continuous Collector Current | 500 mA | mA |
| Continuous Base Current | 25 mA | mA |
| Operating Ambient Temperature Range | -20 to 85 °C | °C |
| Storage Temperature Range | -55 to 150 °C | °C |
| Junction Temperature | 150 °C | °C |
Key Features
- Seven Darlington pairs per package
- Output current of 500 mA per driver (600 mA peak)
- Output voltage of 50 V
- Integrated suppression diodes for inductive loads
- Outputs can be paralleled for higher current
- TTL/CMOS/PMOS/DTL compatible inputs
- Inputs pinned opposite to outputs to simplify board layout
Applications
The ULN2002A is useful for driving a wide range of loads, including solenoids, relays, DC motors, LED displays, filament lamps, thermal print-heads, and high-power buffers.
Q & A
- What is the ULN2002A?
The ULN2002A is a high-voltage, high-current Darlington array produced by STMicroelectronics.
- What are the key features of the ULN2002A?
The key features include seven Darlington pairs, 500 mA output current per driver, 50 V output voltage, integrated suppression diodes, and compatibility with various logic families.
- What are the typical applications of the ULN2002A?
It is used for driving solenoids, relays, DC motors, LED displays, filament lamps, thermal print-heads, and high-power buffers.
- What are the available packages for the ULN2002A?
The device is available in both 16-pin DIP (PDIP-16) and small outline (SO-16) packages.
- What is the operating temperature range of the ULN2002A?
The operating ambient temperature range is -20 to 85 °C.
- Can the outputs of the ULN2002A be paralleled?
- What is the purpose of the integrated suppression diodes in the ULN2002A?
The integrated suppression diodes are for driving inductive loads.
- Is the ULN2002A compatible with all common logic families?
The ULN2002A is specifically designed for 14-25 V PMOS applications but is compatible with TTL, CMOS, and DTL logic families in general.
- How does the copper leadframe in the package help?
The copper leadframe reduces thermal resistance.
- What is the maximum junction temperature of the ULN2002A?
The maximum junction temperature is 150 °C.
