Overview
The UC3875N is a phase shift resonant controller integrated circuit (IC) produced by Texas Instruments. This device is designed to control a bridge power stage by phase-shifting the switching of one half-bridge, making it suitable for high-efficiency power supply applications. The UC3875N is part of the UC3875 family, which is known for its robust performance in resonant mode power supplies.
Key Specifications
| Parameter | Value |
|---|---|
| Type of Integrated Circuit | PMIC (Power Management IC), Resonant Mode Controller |
| Output Current | 0.5 A |
| Frequency | 1 MHz |
| Case | DIP20 (Through-Hole Technology) |
| Mounting | THT (Through-Hole Technology) |
| Operating Temperature | 0°C to 70°C |
| Topology | Push-Pull, Resonant LLC |
| Duty Cycle Factor | 0.5% to 99.5% |
| Operating Voltage | 9.25 V to 20 V DC |
| Package Type | Tube |
Key Features
- High Efficiency: The UC3875N is designed to achieve high efficiency in resonant mode power supplies.
- Phase Shift Control: It controls the bridge power stage by phase-shifting the switching of one half-bridge.
- Wide Operating Voltage Range: Operates over a voltage range of 9.25 V to 20 V DC.
- High Frequency Operation: Supports frequencies up to 1 MHz.
- Flexible Duty Cycle: Duty cycle factor ranges from 0.5% to 99.5%.
- Robust Packaging: Available in DIP20 package with through-hole technology for reliable mounting.
Applications
The UC3875N is primarily used in Switch-Mode Power Supplies (SMPS) where high efficiency and reliability are crucial. It is suitable for various applications including:
- Resonant LLC converters
- High-power DC-DC converters
- Power supplies for industrial and consumer electronics
- Telecommunication equipment
Q & A
- What is the primary function of the UC3875N?
The UC3875N is a phase shift resonant controller IC designed to control a bridge power stage by phase-shifting the switching of one half-bridge.
- What is the output current capability of the UC3875N?
The UC3875N can handle an output current of up to 0.5 A.
- What is the operating frequency range of the UC3875N?
The UC3875N operates at frequencies up to 1 MHz.
- What type of packaging is available for the UC3875N?
The UC3875N is available in a DIP20 package with through-hole technology.
- What is the operating temperature range of the UC3875N?
The UC3875N operates within a temperature range of 0°C to 70°C.
- What topology does the UC3875N support?
The UC3875N supports push-pull and resonant LLC topologies.
- What is the duty cycle factor range of the UC3875N?
The duty cycle factor ranges from 0.5% to 99.5%.
- What are the typical applications of the UC3875N?
The UC3875N is used in Switch-Mode Power Supplies (SMPS), resonant LLC converters, high-power DC-DC converters, and power supplies for industrial and consumer electronics.
- Is the UC3875N RoHS compliant?
- What is the operating voltage range of the UC3875N?
The UC3875N operates over a voltage range of 9.25 V to 20 V DC.
