Overview
The UCC28070DWR is a high-performance power factor correction (PFC) controller manufactured by Texas Instruments. Designed for interleaved, continuous conduction mode (CCM) PFC applications, this IC is ideal for power supplies requiring high efficiency and robust performance. With a focus on applications exceeding 750W, the UCC28070DWR offers advanced features such as average current mode control, overvoltage protection, and interleaved operation, making it a competitive choice for industrial and commercial power systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Product Category | PFC Controllers | - | - |
| Switch Frequency | 300 | kHz | Adjustable |
| Operating Temperature | -40 to +125 | °C | - |
| Mounting Style | SMD/SMT | - | - |
| Package | SOIC-20 | - | Reel, Cut Tape, MouseReel |
| Power Dissipation | 1050 | mW | - |
| Supply Voltage | 11.2 to 21 | V | - |
| Start-up Current | 20 | mA | - |
| Factory Pack Quantity | 2000 | - | - |
Key Features
- Supports applications over 750W with interleaved operation.
- Average current mode control for precise current regulation.
- Built-in overvoltage protection (OVP) for enhanced safety.
- Adjustable switching frequency up to 300 kHz for design flexibility.
- Wide operating temperature range (-40°C to +125°C) for robust performance.
Applications
The UCC28070DWR is widely used in high-power applications requiring efficient power factor correction. Its primary applications include industrial power supplies, server and telecom power systems, and renewable energy inverters. The controller's interleaved operation and advanced features make it particularly suitable for designs demanding high efficiency and reliability.
Q & A
What is the operating temperature range of the UCC28070DWR?
The UCC28070DWR operates within a temperature range of -40°C to +125°C.
What is the maximum switch frequency supported?
The maximum switch frequency is 300 kHz, which is adjustable.
What type of package does the UCC28070DWR come in?
It is available in a 20-pin SOIC package.
Does the UCC28070DWR support overvoltage protection?
Yes, it includes built-in overvoltage protection (OVP).
What is the supply voltage range for this IC?
The supply voltage range is 11.2V to 21V.
Can the UCC28070DWR be used in interleaved PFC applications?
Yes, it is specifically designed for interleaved PFC topologies.
What is the start-up current requirement?
The start-up current is 20 mA.
Is the UCC28070DWR RoHS compliant?
Yes, it is RoHS compliant.
What is the power dissipation of the UCC28070DWR?
The power dissipation is 1050 mW.
What are the typical applications of this IC?
Typical applications include industrial power supplies, telecom systems, and renewable energy inverters.
