Overview
The ULN2004AIN is a high-voltage, high-current Darlington transistor array produced by Texas Instruments. This device is part of the ULN2004 series and is specifically designed for applications requiring high current and voltage handling capabilities. The ULN2004AIN features seven npn Darlington pairs with common-cathode clamp diodes, making it suitable for driving a wide range of loads including solenoids, relay drivers, DC motors, LED displays, and thermal print heads.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Part Number | ULN2004AIN | |
| Package Type | PDIP-16 | |
| Output Voltage | 50 | V |
| Continuous Collector Current | 500 | mA |
| Peak Collector Current | 600 | mA |
| Input Voltage Compatibility | TTL, CMOS, PMOS, DTL | |
| Operating Ambient Temperature Range | -40 to 85 | °C |
| Storage Temperature Range | -55 to 150 | °C |
| Junction Temperature | 150 | °C |
Key Features
- Seven Darlington pairs per package with common emitters and integrated suppression diodes for inductive load driving.
- High-voltage outputs up to 50 V and high-current capability up to 500 mA per driver (600 mA peak).
- Inputs compatible with TTL, CMOS, PMOS, and DTL logic families.
- Outputs can be paralleled for higher current capability.
- Input pins placed opposite to output pins to simplify board layout.
- Available in PDIP-16, SO-16, and TSSOP16 packages.
- Includes a 10.5-kΩ series base resistor for each Darlington pair for direct operation with TTL or 5-V CMOS devices.
Applications
- Relay drivers
- Hammer drivers
- Lamp drivers (including LED and gas discharge displays)
- Thermal print heads
- Line drivers
- Logic buffers
- Solenoid drivers
- DC motor drivers
Q & A
- What is the ULN2004AIN?
The ULN2004AIN is a high-voltage, high-current Darlington transistor array produced by Texas Instruments.
- What are the key features of the ULN2004AIN?
It includes seven Darlington pairs, high-voltage outputs up to 50 V, high-current capability up to 500 mA per driver, and inputs compatible with various logic families.
- What types of loads can the ULN2004AIN drive?
The ULN2004AIN can drive solenoids, relay drivers, DC motors, LED displays, thermal print heads, and other high-current loads.
- What are the operating temperature ranges for the ULN2004AIN?
The operating ambient temperature range is -40 to 85°C, and the storage temperature range is -55 to 150°C.
- What packages is the ULN2004AIN available in?
The ULN2004AIN is available in PDIP-16, SO-16, and TSSOP16 packages.
- Can the outputs of the ULN2004AIN be paralleled?
- What is the purpose of the integrated suppression diodes in the ULN2004AIN?
The integrated suppression diodes are for driving inductive loads.
- Is the ULN2004AIN compatible with different logic families?
- What is the maximum junction temperature for the ULN2004AIN?
The maximum junction temperature is 150°C.
- Where can I find detailed specifications and datasheets for the ULN2004AIN?
Detailed specifications and datasheets can be found on the Texas Instruments website and other electronic component databases like Mouser and LCSC.
