Overview
The ULQ2003A-Q1, produced by Texas Instruments, is a high-voltage, high-current Darlington transistor array. This device is designed to handle demanding applications, particularly in automotive and industrial environments. Each ULQ2003A-Q1 consists of seven npn Darlington pairs, featuring high-voltage outputs with common-cathode clamp diodes, which are essential for switching inductive loads. The device is qualified for automotive applications and offers robust ESD protection, making it a reliable choice for various electronic systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOT-23-THN (DYY), SOIC (D) |
| Pins | 16 |
| Operating Temperature Range | -40°C to 125°C |
| Collector Current (single output) | 500mA |
| High-Voltage Outputs | 50V |
| Series Base Resistor | 2.7kΩ (ULQ2003A-Q1), 10.5kΩ (ULQ2004A-Q1) |
| ESD Protection | Exceeds 200V using machine model (C = 200pF, R = 0) |
Key Features
- Qualified for automotive applications (AEC-Q100 qualified)
- ESD protection exceeds 200V using machine model (C = 200pF, R = 0)
- 500mA-rated collector current (single output)
- High-voltage outputs: 50V
- Output clamp diodes for switching inductive loads
- Inputs compatible with various types of logic (TTL, 5V CMOS, 6V to 15V CMOS)
- Relay-driver applications
Applications
The ULQ2003A-Q1 is versatile and can be used in a variety of applications, including:
- Automotive systems: Due to its AEC-Q100 qualification, it is suitable for use in automotive environments.
- Relay drivers: The device is particularly useful for driving relays and other inductive loads.
- Industrial control systems: Its high-voltage and high-current capabilities make it ideal for industrial control and automation.
- General-purpose switching: It can be used in any application requiring high-voltage and high-current switching.
Q & A
- What is the ULQ2003A-Q1?
The ULQ2003A-Q1 is a high-voltage, high-current Darlington transistor array produced by Texas Instruments.
- What are the key features of the ULQ2003A-Q1?
Key features include high-voltage outputs, ESD protection, compatibility with various logic types, and the ability to switch inductive loads.
- What is the operating temperature range of the ULQ2003A-Q1?
The operating temperature range is -40°C to 125°C.
- What is the collector current rating of a single Darlington pair in the ULQ2003A-Q1?
The collector current rating is 500mA per single Darlington pair.
- Can the Darlington pairs be paralleled for higher current capability?
- What types of logic are the inputs of the ULQ2003A-Q1 compatible with?
The inputs are compatible with TTL, 5V CMOS, and 6V to 15V CMOS devices.
- What is the purpose of the common-cathode clamp diodes in the ULQ2003A-Q1?
The common-cathode clamp diodes are used for switching inductive loads.
- Is the ULQ2003A-Q1 qualified for automotive applications?
- What is the ESD protection level of the ULQ2003A-Q1?
The ESD protection exceeds 200V using the machine model (C = 200pF, R = 0).
- What are some typical applications of the ULQ2003A-Q1?
Typical applications include automotive systems, relay drivers, industrial control systems, and general-purpose switching.
