Overview
The ULN2003ANSR is a high-voltage, high-current Darlington transistor array produced by Texas Instruments. This device consists of seven NPN Darlington pairs, each featuring high-voltage outputs with common-cathode clamp diodes designed for switching inductive loads. The ULN2003ANSR is part of the ULx200xA family, which is widely used in various applications requiring high current and voltage handling capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector Current (single output) | 500 | mA |
| High-Voltage Outputs | 50 | V |
| Operating Temperature Range | -40 to 70 | °C |
| Package Type | SOP (NS) | |
| Number of Pins | 16 | |
| Series Base Resistor | 2.7kΩ | |
| Collector-Emitter Saturation Voltage | 0.9 - 1.7 | V |
| Propagation Delay Time (low- to high-level output) | 0.25 - 1 | μs |
| Propagation Delay Time (high- to low-level output) | 0.25 - 1 | μs |
Key Features
- 500mA-rated collector current per single output
- High-voltage outputs up to 50V
- Output clamp diodes for inductive load switching
- Inputs compatible with various types of logic (TTL, 5V CMOS)
- 2.7kΩ series base resistor for each Darlington pair
- Relay-driver applications and other high-current drive needs
Applications
- Relay drivers
- Hammer drivers
- Lamp drivers
- Display drivers (LED and gas discharge)
- Line drivers
- Logic buffers
Q & A
- What is the collector current rating of a single Darlington pair in the ULN2003ANSR?
The collector current rating of a single Darlington pair is 500mA.
- What is the maximum voltage rating for the outputs of the ULN2003ANSR?
The maximum voltage rating for the outputs is 50V.
- What type of logic inputs are compatible with the ULN2003ANSR?
The inputs are compatible with TTL and 5V CMOS logic.
- What is the purpose of the output clamp diodes in the ULN2003ANSR?
The output clamp diodes are used to suppress kick-back voltage from inductive loads.
- Can the Darlington pairs in the ULN2003ANSR be paralleled for higher current capability?
Yes, the Darlington pairs can be paralleled to achieve higher current capability.
- What is the operating temperature range for the ULN2003ANSR?
The operating temperature range is -40°C to 70°C.
- What is the package type and number of pins for the ULN2003ANSR?
The package type is SOP (NS) with 16 pins.
- What is the value of the series base resistor in each Darlington pair of the ULN2003ANSR?
The series base resistor is 2.7kΩ.
- What are some common applications of the ULN2003ANSR?
Common applications include relay drivers, hammer drivers, lamp drivers, display drivers, line drivers, and logic buffers.
- What is the propagation delay time for the ULN2003ANSR?
The propagation delay time is between 0.25 and 1 μs for both low- to high-level and high- to low-level output transitions.
