Description

The ULQ2003A is a transistor array comprised of high-voltage, high-current darlington transistors. It belongs to the product category of transistors (BJT) - arrays. This model includes 7 NPN darlington output stages which are designed for interfacings between low-level logic to high-current loads.

Specifications and features

• Category: Transistors (BJT) - Arrays
• Manufacturer: Texas Instruments
• Output Configuration: Darlington
• Number of Outputs: 7
• Package/Case: PDIP
• Mounting Style: Through Hole
• Input Type: Standard
• Output Type: NPN - Darlington
• Voltage Rating: 50V to 100V
• Current - Output / Channel: 500mA to 1.5A
• Current - Peak Output: 600mA
• Propagation Delay: 0.25µs
• Operating Temperature: -40°C to 85°C
• Package Quantity: 50

Application Scenarios

The ULQ2003A is commonly used in industrial applications as a driver for relays, lamps, LED displays, motors, and other high-current peripheral devices.

Comparison

• High-Voltage Capability: The ULQ2003A can support a voltage rating of up to 100V which makes it ideal for industrial power applications.
• High-Current: It offers a maximum output current of up to 1.5A for each channel, allowing it to drive high-current devices such as relays and motors with ease.
• Darlington Configuration: The ULQ2003A uses Darlington configuration to ensure high input impedance, fast switching, and saturation with relatively low input current.
• Low Power Dissipation: It has a low quiescent current of 2.7mA, which results in low power dissipation.

• Not Suitable for Low-Power Applications: Due to its high quiescent current, the ULQ2003A may not be the best choice for low-power devices and battery-powered applications.