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Texas Instruments Power Factor Pre-Regulator Circuit IC 115 kHz 16-Pin SOIC 20V UC3854BDW
Specifications
| Country of Origin | India |
|---|---|
| Brand | Texas Instruments |
| Height | 2.35mm |
| Length | 10.28mm |
| Model | UC3854BDW |
| Mount Type | Surface |
| Maximum Operating Temperature | 70°C |
| Package Type | SOIC |
| Sub Type | Power Factor Pre-Regulator Circuit |
| Minimum Operating Temperature | 0°C |
| Switching Frequency | 115kHz |
| Pin Count | 16 |
| Maximum Supply Voltage | 20V |
| Minimum Supply Voltage | 10V |
| Supply Current | 18mA |
| Start-up Supply Current | 300μA |
| Maximum Source Current | 14μA |
Key Features
- The IC features a start-up supply current of 300μA for low power consumption.
- Maximum source current is limited to 14μA to ensure stable operation.
- Designed as a surface mount device for easy PCB integration.
- Operates reliably between supply voltages of 10V to 20V.
- Supports zero power detection capability for enhanced efficiency.
- Operating temperature range is from 0°C to 70°C to suit industrial environments.
- The package dimensions include a height of 2.35mm and length of 10.28mm.
- Ideal for AC-DC power factor correction applications requiring near unity power factor and low harmonic distortion.
Product Description
Texas Instruments UC3854BDW is a Power Factor Pre-Regulator Circuit IC designed to facilitate power factor correction in AC-DC power supplies. Featuring a 115 kHz switching frequency and packaged in a 16-pin SOIC, this IC operates with supply voltages from 10V to 20V, making it suitable for a range of industrial and commercial power management applications.
The device's low start-up supply current of 300μA and maximum source current of 14μA contribute to energy-efficient performance. Its zero power detection feature enhances power savings by identifying when power consumption can be minimized.
With a compact height of 2.35mm and length of 10.28mm, the SOIC package supports surface mounting for streamlined PCB assembly.
Texas Instruments' integrated controller technology applied in this IC ensures stable, low distortion sinusoidal line currents by leveraging advanced features such as quantized voltage feed-forward, current synthesis, frequency dithering, and slew rate enhancement. This ensures high power factor (PF), low total harmonic distortion (iTHD), high efficiency, and power density compliance with IEC61000-3-2 harmonic current standards.
Typical applications include industrial power supplies, commercial equipment, and HVAC systems where power factor correction improves electrical efficiency and reduces harmonic interference.
The IC is designed for surface mount assembly in compact power management circuits. It operates reliably over ambient temperatures ranging 0°C to 70°C. Ensures stable operation at supply voltages from 10V to 20V. Ideal for AC-DC power factor correction solutions requiring precise control.
Features 16 pins in a standard SOIC package format. Discover other Power Management ICs and controllers at EnvMart to optimize your power electronics designs efficiently.
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Frequently Asked Questions
The UC3854BDW operates at a switching frequency of 115 kHz.
It operates reliably with supply voltages ranging from 10V to 20V.
The package dimensions are a height of 2.35mm and a length of 10.28mm.
The start-up supply current for this model is 300μA.
This IC features a total of 16 pins.
The maximum operating temperature is 70°C.
It is designed for surface mounting, facilitating easy PCB integration.
The maximum source current is limited to 14μA to ensure stable operation.
The minimum operating temperature is 0°C.
It is suitable for AC-DC power factor correction applications, improving electrical efficiency and reducing harmonic distortion.
The supply current for this model is 18mA.
It supports zero power detection capability, contributing to enhanced efficiency by minimizing power consumption during low load conditions.
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