Overview
The ULN2004ANE4 is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. This device is part of the ULx2004A series, which features seven NPN Darlington pairs with common emitters. Each Darlington pair is designed to handle high-voltage outputs up to 50V and high-current loads up to 500mA per driver, with peak currents of 600mA. The ULN2004ANE4 is specifically tailored for operation with CMOS devices using supply voltages between 6V and 15V, thanks to its 10.5kΩ series base resistor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VO) | 50 | V |
| Continuous Collector Current (IC) | 500 | mA |
| Peak Collector Current | 600 | mA |
| Input Voltage (VI) | 30 | V |
| Operating Ambient Temperature Range (TA) | -40 to 85 | °C |
| Storage Temperature Range (TSTG) | -55 to 150 | °C |
| Junction Temperature (TJ) | 150 | °C |
| Electrostatic Discharge Rating - HBM | 2 | kV |
| Thermal Resistance Junction-Ambient (RthJA) | 70 (DIP-16), 64.7 (SO-16), 93.3 (TSSOP16) | °C/W |
Key Features
- Seven Darlington pairs per package with common emitters.
- High-voltage outputs: up to 50V.
- High-current capability: 500mA per driver, 600mA peak.
- Integrated suppression diodes for inductive load driving.
- Outputs can be paralleled for higher current capability.
- Inputs compatible with TTL, CMOS, PMOS, and DTL logic families.
- Input pins placed opposite to output pins to simplify board layout.
- 10.5kΩ series base resistor for operation directly from CMOS devices with supply voltages of 6V to 15V.
Applications
The ULN2004ANE4 is versatile and suitable for a wide range of applications, including:
- Relay drivers.
- Hammer drivers.
- Lamp drivers.
- Display drivers (LED and gas discharge).
- Line drivers.
- Logic buffers.
- Solenoids.
- DC motors.
- Thermal printheads.
- High-power buffers.
Q & A
- What is the maximum output voltage of the ULN2004ANE4?
The maximum output voltage is 50V.
- What is the continuous collector current rating of the ULN2004ANE4?
The continuous collector current rating is 500mA per driver.
- Can the outputs of the ULN2004ANE4 be paralleled for higher current capability?
- What type of logic families are the inputs of the ULN2004ANE4 compatible with?
The inputs are compatible with TTL, CMOS, PMOS, and DTL logic families.
- What is the operating ambient temperature range of the ULN2004ANE4?
The operating ambient temperature range is -40°C to 85°C.
- What is the storage temperature range of the ULN2004ANE4?
The storage temperature range is -55°C to 150°C.
- What is the thermal resistance junction-ambient (RthJA) of the ULN2004ANE4 in different packages?
The RthJA is 70°C/W for DIP-16, 64.7°C/W for SO-16, and 93.3°C/W for TSSOP16.
- What is the electrostatic discharge rating of the ULN2004ANE4?
The electrostatic discharge rating is 2kV (HBM).
- What are some common applications of the ULN2004ANE4?
Common applications include relay drivers, hammer drivers, lamp drivers, display drivers, line drivers, logic buffers, solenoids, DC motors, thermal printheads, and high-power buffers.
- What is the purpose of the 10.5kΩ series base resistor in the ULN2004ANE4?
The 10.5kΩ series base resistor allows the device to operate directly from CMOS devices with supply voltages of 6V to 15V.
