Overview
The ULN2065B is a high-voltage, high-current quad Darlington switch produced by STMicroelectronics. This device is designed to interface logic circuits to a wide variety of high current and high voltage loads. The ULN2065B is part of the ULN series, which includes other variants like the ULN2067B, ULN2069B, and ULN2075B. Each device in this series contains four NPN Darlington switches, making them well-suited for applications requiring high current gain and minimal space usage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Style | PowerDIP-16 | |
| Mounting Method | Through Hole | |
| Output Voltage (VCEX) | 80 | V |
| Output Sustaining Voltage (VCE(SUS)) | 50 | V |
| Output Current (IO) | 1.5 | A |
| Input Voltage (VI) | 15 | V |
| Input Current (II) | 25 | mA |
| Operating Ambient Temperature Range | -20 to 85 | °C |
| Storage Temperature Range | -55 to 150 | °C |
| Power Dissipation at TPINS = 90 °C | 4.3 | W |
Key Features
- High current gain due to the Darlington configuration, allowing for the amplification of current by the first transistor and further amplification by the second transistor.
- Integral suppression diodes for inductive loads, reducing the risk of voltage spikes and ensuring reliable operation.
- Compatibility with popular logic families, including 5 V logic for ULN2065B and ULN2075B, and 6-15 V CMOS and PMOS for ULN2067B.
- High output current up to 1.5 A per Darlington switch, and a minimum breakdown voltage of 80 V.
- Isolated Darlington pinout in the ULN2075B variant, suitable for emitter follower configurations.
Applications
The ULN2065B is suitable for a variety of industrial and consumer applications, including driving lamps, relays, and printer hammers. Its high current and voltage capabilities make it ideal for interfacing logic circuits to high current, high voltage loads. It is also used in applications requiring high current gain and space efficiency, such as in automotive, industrial control, and consumer electronics).
Q & A
- What is the ULN2065B?
The ULN2065B is a high-voltage, high-current quad Darlington switch produced by STMicroelectronics, designed to interface logic circuits to high current and high voltage loads. - What is the package style of the ULN2065B?
The ULN2065B comes in a PowerDIP-16 package style. - What is the maximum output current of the ULN2065B?
The maximum output current per Darlington switch is 1.5 A. - What is the maximum output voltage of the ULN2065B?
The maximum output voltage (VCEX) is 80 V. - Is the ULN2065B compatible with all logic families?
The ULN2065B is compatible with popular 5 V logic families, while the ULN2067B is compatible with 6-15 V CMOS and PMOS logic families. - What are the integral suppression diodes used for in the ULN2065B?
The integral suppression diodes are used to protect against voltage spikes in inductive loads. - What is the operating ambient temperature range of the ULN2065B?
The operating ambient temperature range is -20 to 85 °C. - How many Darlington switches does the ULN2065B contain?
The ULN2065B contains four NPN Darlington switches. - What are some common applications of the ULN2065B?
Common applications include driving lamps, relays, and printer hammers, as well as use in automotive, industrial control, and consumer electronics. - How should the ULN2065B be mounted to ensure optimal thermal performance?
The device should be mounted by soldering the GND pins to a suitable copper area of the printed circuit board or to an external heatsink to reduce thermal resistance.
