UC3854ADW - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UC3854ADW
Manufacturer

TI
ChipWorker Part#

CW3745608
Category

Power Management IC
Package

SOIC-16
Description

Power Factor Correction PREREGUL 0.3mA 115kHz 16Pin SOIC Tube
Documentation

Datasheet

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UC3854ADW Specifications

Attribute	Attribute Value

Part Number	UC3854ADW
Manufacturer	TI
ChipWorker Part#	CW3745608
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Frequency	200 kHz
Supply Voltage (DC)	20.0V (max)
Number of Outputs	1 Output
Input Voltage (DC)	11.0 V
Switching Frequency	200 kHz
Duty Cycle	95 %
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage	10V ~ 20V
Supply Voltage (Max)	20 V
Supply Voltage (Min)	10 V
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Size-Length	10.28 mm
Size-Width	7.52 mm
Size-Height	2.35 mm
Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

DESCRIPTION
The UC3854A/B products are pin compatible enhanced versions of the UC3854. Like the UC3854,
these products provide all of the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac input line current waveform to correspond to the ac input line voltage. To do this the UC3854A/B uses average current mode control. Average current mode control maintains stable, low distortion sinusoidal line current without the need for slope compensation, unlike peak current mode control.
FEATURES
• Controls Boost PWM to Near-Unity Power Factor
• Limits Line Current Distortion To <3%
• World-Wide Operation Without Switches
• Accurate Power Limiting
• Fixed-Frequency Average Current-Mode Control
• High Bandwidth (5 MHz), Low-Offset Current Amplifier
• Integrated Current- and Voltage-Amplifier Output Clamps
• Multiplier Improvements: Linearity, 500 mV VAC Offset (Eliminates External Resistor), 0 V to 5 V Multout Common-Mode Range
• VREF GOOD Comparator
• Faster and Improved Accuracy ENABLE Comparator
• UVLO Options (16 V/10 V or 10.5 V/10 V)
• 300-µA Start-Up Supply Current

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