Overview
The UC2879DW is a Phase Shift Resonant Controller produced by Texas Instruments, designed for high-efficiency power conversion applications. This integrated circuit (IC) is part of the PMIC - Regulator - DC DC Switching Controller family and is packaged in a 20-SOIC (0.295", 7.50mm wide) format. It is suitable for industrial and automotive applications where reliable and efficient power management is critical. The UC2879DW stands out for its ability to achieve zero-voltage switching (ZVS) and its compatibility with both voltage and current mode topologies, making it a versatile choice for advanced power systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Category | PMIC - Regulator - DC DC Switching Controller | - | - |
| PWM Type | Current/Voltage Mode | - | - |
| Output Number | 4 | - | - |
| Maximum Frequency | 300 | kHz | - |
| Duty Cycle | 100 | % | - |
| Supply Voltage | 11 to 18 | V | - |
| Operating Temperature | -40 to 85 | °C | - |
| Package | 20-SOIC | - | 0.295", 7.50mm wide |
Key Features
- Supports phase-shift resonant control for high efficiency.
- Compatible with both voltage and current mode topologies.
- Zero-voltage switching (ZVS) capability.
- Programmable output turn-on delay for precise timing.
- Integrated protection features including overcurrent and undervoltage lockout.
Applications
The UC2879DW is widely used in power conversion systems, particularly in industrial automation, telecommunications, and automotive electronics. Its ability to achieve high efficiency through zero-voltage switching makes it ideal for applications such as switch-mode power supplies (SMPS), uninterruptible power supplies (UPS), and renewable energy systems. Additionally, its robust design and protection features ensure reliable performance in harsh environments.
Q & A
What is the maximum operating frequency of the UC2879DW?
The maximum operating frequency is 300 kHz.
What is the supply voltage range for the UC2879DW?
The supply voltage range is 11 V to 18 V.
Does the UC2879DW support zero-voltage switching (ZVS)?
Yes, it supports zero-voltage switching for high efficiency.
What is the operating temperature range of the UC2879DW?
The operating temperature range is -40°C to 85°C.
Is the UC2879DW compatible with voltage mode topologies?
Yes, it is compatible with both voltage and current mode topologies.
What package does the UC2879DW come in?
It comes in a 20-SOIC package with a width of 7.50mm.
Does the UC2879DW have overcurrent protection?
Yes, it includes overcurrent protection for enhanced reliability.
Can the UC2879DW be used in automotive applications?
Yes, it is suitable for automotive electronics due to its robust design.
What is the duty cycle of the UC2879DW?
The duty cycle is 100%.
Does the UC2879DW support external clock synchronization?
Yes, it supports external clock synchronization via the CLKSYNC pin.
