UC1854
UC1854 is High-Power Factor Preregulator manufactured by Texas Instruments.
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UC1854, UC2854, UC3854
SLUS336A
- JUNE 1998
- REVISED DECEMBER 2016
UCx854 High-Power Factor Preregulator
1 Features
- 1 Control Boost PWM to 0.99 Power Factor
- Limit Line-Current Distortion to < 5%
- World-Wide Operation Without Switches
- Feedforward Line Regulation
- Average Current-Mode Control
- Low Noise Sensitivity
- Low Startup Supply Current
- Fixed-Frequency PWM Drive
- Low-Offset Analog Multiplier and Divider
- 1-A Totem-Pole Gate Driver
- Precision Voltage Reference
2 Applications
- Offline AC-to-DC Converters
- Medical, Industrial, Tele, and IT Power
Supplies
- Uninterruptible Power...
