Overview
The UC2854DWTRG4 is a high-performance Power Factor Correction (PFC) controller IC designed and manufactured by Texas Instruments. This bipolar Continuous Conduction Mode (CCM) PFC controller is optimized for high-power applications requiring active power factor correction to ensure sinusoidal current draw from the mains supply. The device operates over a wide line frequency range of 50Hz to 400Hz and is rated for operation in temperatures from –40°C to 85°C. It is packaged in a 16-pin SOIC (DW) package, making it suitable for a variety of power supply and converter designs.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (DW) 16-pin |
| Operating Temperature | –40°C to 85°C |
| Line Frequency Range | 50Hz to 400Hz |
| Supply Voltage | Up to 35V |
| UVLO (Under Voltage Lockout) | 16V |
| Switching Frequency | Average Current Mode, up to 200kHz |
Key Features
- Active power factor correction for sinusoidal current draw
- Continuous Conduction Mode (CCM) operation
- Wide line frequency range support (50Hz to 400Hz)
- High operating temperature range (–40°C to 85°C)
- Compact 16-pin SOIC (DW) package
- Under Voltage Lockout (UVLO) at 16V for safe operation
Applications
The UC2854DWTRG4 is designed for use in high-power systems that require efficient and sinusoidal current draw from the mains supply. Typical applications include:
- Switch-mode power supplies
- Power converters and inverters
- Industrial power systems
- Aerospace and defense power systems
- High-reliability power supplies in medical and telecommunications equipment
Q & A
- What is the primary function of the UC2854DWTRG4?
The UC2854DWTRG4 is a Power Factor Correction (PFC) controller IC designed to ensure sinusoidal current draw from the mains supply. - What is the operating temperature range of the UC2854DWTRG4?
The device operates from –40°C to 85°C. - What is the line frequency range supported by the UC2854DWTRG4?
The device supports a line frequency range of 50Hz to 400Hz. - What is the package type of the UC2854DWTRG4?
The UC2854DWTRG4 is packaged in a 16-pin SOIC (DW) package. - What is the Under Voltage Lockout (UVLO) threshold for the UC2854DWTRG4?
The UVLO threshold is 16V. - What is the maximum supply voltage for the UC2854DWTRG4?
The maximum supply voltage is up to 35V. - What is the typical switching frequency range of the UC2854DWTRG4?
The device operates in Average Current Mode, up to 200kHz. - What are some common applications of the UC2854DWTRG4?
Common applications include switch-mode power supplies, power converters and inverters, industrial power systems, and high-reliability power supplies in medical and telecommunications equipment. - Is the UC2854DWTRG4 suitable for high-power applications?
Yes, the UC2854DWTRG4 is designed for high-power applications requiring active power factor correction. - Where can I find detailed specifications and datasheets for the UC2854DWTRG4?
Detailed specifications and datasheets can be found on the Texas Instruments website, as well as through distributors like Digi-Key and Mouser.
