UC3855BDWTR
- Mfr.Part #
- UC3855BDWTR
- Manufacturer
- Texas Instruments
- Package / Case
- 20-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC PFC CTR AVERAGE 500KHZ 20SOIC
- Stock
- 6,229
- In Stock :
- 6,229
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- Manufacturer :
- Texas Instruments
- Product Category :
- PFC (Power Factor Correction)
- Moisture Sensitivity Level (MSL) :
- 2 (1 Year)
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- JESD-609 Code :
- e4
- Supply Current-Max (Isup) :
- 17mA
- ECCN Code :
- EAR99
- Pbfree Code :
- yes
- Terminal Pitch :
- 1.27mm
- Peak Reflow Temperature (Cel) :
- 260
- Switcher Configuration :
- Boost
- Control Technique :
- PULSE WIDTH MODULATION
- Frequency :
- 500kHz
- Height :
- 2.65mm
- Width :
- 7.5mm
- Analog IC - Other Type :
- POWER FACTOR CONTROLLER
- Base Part Number :
- UC3855
- Weight :
- 569.003279mg
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Mode :
- Average Current
- Length :
- 12.8mm
- Input Voltage (Min) :
- 15V
- Lead Free :
- Lead Free
- Output Voltage-Min :
- 7.313V
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Thickness :
- 2.35mm
- Output Voltage-Max :
- 7.688V
- Packaging :
- Tape and Reel (TR)
- Number of Pins :
- 20
- Number of Functions :
- 1
- Terminal Position :
- Dual
- Input Voltage (Max) :
- 35V
- Surface Mount :
- yes
- Current - Startup :
- 150μA
- Factory Lead Time :
- 6 Weeks
- Voltage - Supply :
- 10.5V~20V
- Operating Temperature :
- 0°C~70°C
- Input Voltage-Nom :
- 18V
- Pin Count :
- 20
- Radiation Hardening :
- No
- RoHS Status :
- ROHS3 Compliant
- Terminal Form :
- Gull wing
- Output Current-Max :
- 1.5A
- Output Voltage :
- 7.5V
- Number of Terminations :
- 20
- Supply Voltage :
- 18V
- Mounting Type :
- Surface Mount
- HTS Code :
- 8542.39.00.01
- Datasheets
- UC3855BDWTR
UC3855BDWTR Documents

PFC Texas Instruments UC3855BDWTR Overview
The PFC Texas Instruments UC3855BDWTR is a highly integrated IC designed for power factor correction applications. Optimized for average current mode control, this IC operates at a frequency of up to 500 kHz, allowing for compact power supply designs with minimal external components. Its robust design ensures high efficiency and reliability, making it an ideal choice for manufacturers looking to enhance energy efficiency and reduce operational costs in their power supply solutions. The UC3855BDWTR's integration features help in simplifying the design and implementation process, appealing particularly to B2B customers interested in volume purchases for high-performance applications.
UC3855BDWTR Features
This IC includes multiple features that enhance its functionality and utility in various applications. It supports a wide operating frequency range up to 500 kHz, which allows for smaller passive components and helps in reducing overall system size and cost. Additionally, it incorporates features like over-voltage protection, under-voltage lockout, and programmable soft start functionality, which collectively enhance the system's reliability and safety during fluctuations in power supply.
UC3855BDWTR Applications
- AC-DC Power Supplies: Enhances power efficiency and reduces harmonic distortion in power supply units, crucial for operational reliability and compliance with global power standards.
- Telecommunications Equipment: Ensures stable and efficient power management within telecom infrastructures, critical for maintaining system integrity and performance over long periods.
- Industrial Systems: Improves energy efficiency and power quality in demanding industrial environments, supporting prolonged equipment lifespan and reduced energy costs.
- Consumer Electronics: Applies in devices requiring efficient power management to extend battery life and optimize energy consumption, essential for user satisfaction and device performance.
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