Overview
The ULN2004ADRG4 is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. This device is part of the ULx2004A series, which is designed to operate directly with CMOS devices using supply voltages from 6V to 15V. Each device consists of seven NPN Darlington pairs, featuring high-voltage outputs with common-cathode clamp diodes, making them suitable for switching inductive loads.
Key Specifications
| Specification | Value |
|---|---|
| Package | SOIC (D), 16 Pins |
| Operating Temperature Range (°C) | -20 to 70 |
| Collector Current Rating (single output) | 500mA |
| High-Voltage Outputs | 50V |
| Series Base Resistor | 10.5kΩ |
| Package Quantity | Carrier 2,500 | LARGE T&R |
Key Features
- 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, CMOS, etc.)
- Relay-driver applications and other high-current switching needs
Applications
- Relay drivers
- Hammer drivers
- Lamp drivers
- Display drivers (LED and gas discharge)
- Line drivers
- Logic buffers
Q & A
- What is the ULN2004ADRG4 used for?
The ULN2004ADRG4 is used for high-voltage, high-current applications such as relay drivers, hammer drivers, lamp drivers, and display drivers.
- What is the collector current rating of the ULN2004ADRG4?
The collector current rating of a single Darlington pair is 500mA.
- What is the high-voltage output rating of the ULN2004ADRG4?
The high-voltage output rating is 50V.
- What type of logic is the ULN2004ADRG4 compatible with?
The ULN2004ADRG4 is compatible with various types of logic, including TTL and CMOS.
- What is the purpose of the output clamp diodes in the ULN2004ADRG4?
The output clamp diodes are used for switching inductive loads.
- Can the Darlington pairs in the ULN2004ADRG4 be paralleled for higher current capability?
Yes, the Darlington pairs can be paralleled for higher current capability.
- What is the operating temperature range of the ULN2004ADRG4?
The operating temperature range is -20°C to 70°C.
- What is the package type and pin count of the ULN2004ADRG4?
The package type is SOIC (D) with 16 pins.
- What is the series base resistor value in the ULN2004ADRG4?
The series base resistor value is 10.5kΩ.
- What are some common applications of the ULN2004ADRG4?
Common applications include relay drivers, hammer drivers, lamp drivers, display drivers, line drivers, and logic buffers.
