Overview
The ULN2002AN is a high-voltage, high-current Darlington transistor array produced by Texas Instruments. This device consists of seven NPN Darlington pairs, each featuring high-voltage outputs with common-cathode clamp diodes, which are essential for switching inductive loads. The ULN2002AN is specifically designed for use with 14V to 25V PMOS devices, making it versatile for various applications requiring high current and voltage handling capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | PDIP (N) | - |
| Pins | 16 | - |
| Operating Temperature Range | -20 to 70 | °C |
| Output Voltage | 50 | V |
| Continuous Collector Current | 500 | mA |
| Peak Collector Current | 600 | mA |
| Input Voltage (for ULN2002A) | 30 | V |
| Clamping Diode Reverse Voltage | 50 | V |
| Junction Temperature | 150 | °C |
| Electrostatic Discharge Rating - HBM | 2 | kV |
Key Features
- Seven Darlington pairs per package with high-voltage outputs (50V) and common-cathode clamp diodes for inductive load driving.
- Output current rating of 500 mA per driver, with a peak current capability of 600 mA.
- Inputs compatible with various logic families including TTL, CMOS, PMOS, and DTL.
- Outputs can be paralleled for higher current capability.
- Integrated suppression diodes for inductive loads.
- Input pins placed opposite to output pins to simplify board layout.
- Designed specifically for use with 14V to 25V PMOS devices.
Applications
- Relay drivers
- Hammer drivers
- Lamp drivers
- Display drivers (LED and gas discharge)
- Line drivers
- Logic buffers
- Solenoids and DC motors
- Thermal printheads
- High-power buffers
Q & A
- What is the ULN2002AN used for?
The ULN2002AN is used for driving high-voltage and high-current loads such as relays, solenoids, lamps, and display drivers.
- What is the output voltage rating of the ULN2002AN?
The output voltage rating of the ULN2002AN is 50V.
- What is the maximum collector current per driver in the ULN2002AN?
The maximum collector current per driver is 500 mA, with a peak current of 600 mA.
- Is the ULN2002AN compatible with various logic families?
- What type of package is the ULN2002AN available in?
The ULN2002AN is available in a 16-pin PDIP (N) package, as well as in SO-16 and TSSOP16 packages for other variants.
- What is the operating temperature range of the ULN2002AN?
The operating temperature range is -20°C to 70°C.
- Does the ULN2002AN have integrated suppression diodes?
- Can the outputs of the ULN2002AN be paralleled for higher current?
- What is the electrostatic discharge rating of the ULN2002AN?
The electrostatic discharge rating is 2 kV (HBM).
- What is the junction temperature limit of the ULN2002AN?
The junction temperature limit is 150°C.
