Overview
The UC2875NG4 is a bipolar phase-shifted full-bridge controller IC produced by Unitrode, which is now part of Texas Instruments. This component is designed for use in offline power supplies, particularly in applications requiring high efficiency and reliability. The UC2875NG4 is known for its ability to control phase-shifted full-bridge converters, making it suitable for a variety of power supply designs.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package Type | 20-PDIP | Plastic Dual In-Line Package with 20 pins |
| Operating Temperature Range | -25°C to 85°C | The temperature range over which the device can operate reliably |
| Under-Voltage Lockout (UVLO) | 10.75V/9.25V | The voltage levels at which the device will turn off to protect against low input voltage conditions |
| Controller Type | Bipolar Phase Shifted Full Bridge | The type of control mechanism used for managing the power conversion process |
| Manufacturer | Unitrode (Texas Instruments) | The company that produces the UC2875NG4 |
Key Features
- Phase Shifted Full Bridge Control: The UC2875NG4 is designed to control phase-shifted full-bridge converters, which are commonly used in high-power applications for their efficiency and reliability.
- Under-Voltage Lockout (UVLO): The device features UVLO thresholds of 10.75V and 9.25V to protect against low input voltage conditions.
- Wide Operating Temperature Range: The IC can operate over a temperature range of -25°C to 85°C, making it suitable for various environmental conditions.
- Bipolar Technology: Utilizes bipolar technology for robust and reliable operation in power supply applications.
Applications
- Offline Power Supplies: The UC2875NG4 is primarily used in offline power supplies, including those for industrial, medical, and consumer electronics.
- High-Power Conversion: Suitable for applications requiring high-power conversion, such as in server power supplies, medical equipment, and industrial control systems.
- Efficient Power Management: Used in designs where high efficiency and reliability are critical, such as in data center power supplies and telecommunications equipment.
Q & A
- What is the UC2875NG4 used for?
The UC2875NG4 is used as a controller in phase-shifted full-bridge converters, particularly in offline power supplies.
- What is the operating temperature range of the UC2875NG4?
The operating temperature range is -25°C to 85°C.
- What type of package does the UC2875NG4 come in?
The UC2875NG4 comes in a 20-PDIP (Plastic Dual In-Line Package) with 20 pins.
- What are the UVLO thresholds for the UC2875NG4?
The UVLO thresholds are 10.75V and 9.25V.
- Who manufactures the UC2875NG4?
The UC2875NG4 is manufactured by Unitrode, which is now part of Texas Instruments.
- What are some common applications of the UC2875NG4?
Common applications include offline power supplies for industrial, medical, and consumer electronics, as well as high-power conversion in server power supplies and telecommunications equipment.
- Why is the UC2875NG4 preferred in high-power applications?
The UC2875NG4 is preferred due to its efficiency, reliability, and the use of bipolar technology, which is robust and suitable for high-power conversion.
- Where can I find detailed specifications for the UC2875NG4?
Detailed specifications can be found on the Texas Instruments website or through authorized distributors like Digi-Key, Mouser, and Avnet.
- What is the significance of phase-shifted full-bridge control in the UC2875NG4?
Phase-shifted full-bridge control allows for efficient and reliable operation in high-power applications by reducing switching losses and improving overall system efficiency.
- How does the UC2875NG4 protect against low input voltage conditions?
The UC2875NG4 protects against low input voltage conditions through its Under-Voltage Lockout (UVLO) feature, which turns off the device when the input voltage falls below the specified thresholds.
