UC3852N - TI

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

Part No

UC3852N
Manufacturer

TI
ChipWorker Part#

CW11537600
Category

Power Management IC
Package

PDIP-8
Description

Power Factor Correction PREREGUL 0.4mA 8Pin PDIP Tube
Documentation

Datasheet

UC3852N Global Supplier

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UC3852N Specifications

Attribute	Attribute Value

Part Number	UC3852N
Manufacturer	TI
ChipWorker Part#	CW11537600
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	8 Pin
Case/Package	PDIP-8
Frequency	200 kHz
Supply Voltage (DC)	30.0V (max)
Number of Outputs	1 Output
Number of Channels	1 Channel
Switching Frequency	200 kHz
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage	14.5V ~ 30V
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Size-Length	9.81 mm
Size-Width	6.35 mm
Size-Height	4.57 mm
Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

High Power-Factor Preregulator
DESCRIPTION
The UC1852 provides a low-cost solution to active power-factor correction (PFC) for systems that would otherwise draw high peak current pulses from AC power lines. This circuit implements zero-current switched boost conversion, producing sinusoidal input currents with a minimum of external components, while keeping peak current substantially below that of fully-discontinuous converters.
The UC1852 provides controlled switch on-time to regulate the output bulk DC voltage, an off-time defined by the boost inductor, and a zero-current sensing circuit to reactivate the switch cycle. Even though switching frequency varies with both load and instantaneous line voltage, it can be maintained within a reasonable range to minimize noise generation.
FEATURES
• Low-Cost Power Factor Correction
• Power Factor Greater Than 0.99
• Few External Parts Required
• Controlled On-Time Boost PWM
• Zero-Current Switching
• Limited Peak Current
• Min and Max Frequency Limits
• Starting Current Less Than 1mA
• High-Current FET Drive Output
• Under-Voltage Lockout

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