Overview
The ULQ2003ATPWRQ1 is a high-voltage, high-current Darlington transistor array produced by Texas Instruments. This device is part of the ULQ200xA-Q1 family and is designed for a wide range of applications requiring high-current drive capabilities. Each device consists of seven npn Darlington pairs, featuring high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The ULQ2003ATPWRQ1 is particularly suited for automotive and industrial applications due to its robust specifications and reliability.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Collector Current (single output) | - | - | - | 500 | mA |
| High-Voltage Outputs | - | - | - | 50 | V |
| On-state Input Voltage (VI(on)) | VCE = 2 V, IC = 200 mA | 2.7 | - | - | V |
| Collector-Emitter Saturation Voltage (VCE(sat)) | II = 250 μA, IC = 100 mA | 0.9 | 1.2 | 1.4 | V |
| Propagation Delay Time (tPLH, tPHL) | - | 1 | 10 | - | μs |
| Operating Temperature Range | - | -40 | - | 125 | °C |
| Package Type | - | - | - | TSSOP (16) | - |
| Package Size | - | - | - | 5.00mm × 4.40mm | - |
Key Features
- Qualified for automotive applications
- ESD protection exceeds 200V using machine model (C = 200pF, R = 0)
- Inputs compatible with various types of logic (TTL, 5V CMOS, 3.3V CMOS)
- High-voltage outputs: 50V
- Output clamp diodes for inductive load switching
- Series base resistor for direct operation with logic devices (2.7kΩ for ULQ2003A-Q1)
- High-current gain (β2) up to 10,000 A/A
- Low input current requirement
Applications
- Relay drivers
- Stepper and DC brushed motor drivers
- Lamp drivers
- Display drivers (LED and gas discharge)
- Line drivers
- Logic buffers
- Solenoid drivers
- Inductive load drivers (motors, solenoids, relays)
Q & A
- What is the ULQ2003ATPWRQ1 used for?
The ULQ2003ATPWRQ1 is used for driving high-voltage or high-current peripherals from an MCU or logic device, such as relays, motors, solenoids, and lamps.
- What is the maximum collector current per output?
The maximum collector current per output is 500 mA.
- What is the high-voltage output rating of the ULQ2003ATPWRQ1?
The high-voltage output rating is 50 V.
- Does the ULQ2003ATPWRQ1 have ESD protection?
Yes, it has ESD protection that exceeds 200V using the machine model (C = 200pF, R = 0).
- What types of logic are the inputs compatible with?
The inputs are compatible with TTL, 5V CMOS, and 3.3V CMOS logic.
- How do the output clamp diodes function?
The output clamp diodes suppress the kick-back voltage from inductive loads when the NPN drivers are turned off.
- What is the operating temperature range of the ULQ2003ATPWRQ1?
The operating temperature range is from -40°C to 125°C.
- Can the outputs be paralleled for higher current capability?
Yes, the outputs can be paralleled to achieve higher current capability.
- What is the package type and size of the ULQ2003ATPWRQ1?
The package type is TSSOP (16) and the size is 5.00mm × 4.40mm.
- How does the series base resistor affect the operation?
The series base resistor (2.7kΩ for ULQ2003A-Q1) allows for direct operation with TTL or CMOS devices.
