Overview
The ULN2004ANS is a high-voltage, high-current Darlington transistor array produced by Texas Instruments. This device is part of the ULN200x series, which includes seven NPN Darlington pairs with common emitters. It is designed to handle high-voltage and high-current applications, making it versatile for various industrial and electronic uses.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 50 | V |
| Continuous Collector Current | 500 | mA |
| Peak Collector Current | 600 | mA |
| Input Voltage (ULN2004A) | 6 - 15 | V |
| Operating Ambient Temperature Range | -40 to 85 | °C |
| Storage Temperature Range | -55 to 150 | °C |
| Junction Temperature | 150 | °C |
| Package Type | SOP-16 | |
| Pin Count | 16 |
Key Features
- Seven Darlington pairs per package with common emitters.
- High-voltage outputs (up to 50V) and high-current capability (up to 500 mA per driver, 600 mA peak).
- Integrated suppression diodes for inductive load driving.
- Outputs can be paralleled for higher current capability.
- TTL/CMOS/PMOS/DTL compatible inputs.
- Input pins placed opposite to output pins to simplify board layout.
- Series base resistors (10.5kΩ for ULN2004A) for direct operation with CMOS devices.
Applications
- Relay drivers.
- Hammer drivers.
- Lamp drivers (including LED and gas discharge displays).
- Thermal printheads.
- High-power buffers.
- Line drivers.
- Logic buffers.
Q & A
- What is the ULN2004ANS used for? The ULN2004ANS is used for driving high-voltage and high-current loads such as relays, solenoids, DC motors, and LED displays.
- What is the maximum output voltage of the ULN2004ANS? The maximum output voltage is 50V.
- What is the continuous collector current rating of the ULN2004ANS? The continuous collector current rating is 500 mA per driver.
- Can the outputs of the ULN2004ANS be paralleled? Yes, the outputs can be paralleled for higher current capability.
- What types of logic families are compatible with the ULN2004ANS inputs? The inputs are compatible with TTL, CMOS, PMOS, and DTL logic families.
- What is the operating ambient temperature range of the ULN2004ANS? The operating ambient temperature range is -40°C to 85°C.
- What package types are available for the ULN2004ANS? The ULN2004ANS is available in SOP-16 and other packages like DIP-16 and TSSOP16.
- Does the ULN2004ANS have integrated suppression diodes? Yes, it includes integrated suppression diodes for inductive load driving.
- What is the junction temperature limit of the ULN2004ANS? The junction temperature limit is 150°C.
- Can the ULN2004ANS be used with CMOS devices directly? Yes, the ULN2004ANS has series base resistors that allow direct operation with CMOS devices using supply voltages of 6V to 15V.
