UC3853N - TI

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

Part No

UC3853N
Manufacturer

TI
ChipWorker Part#

CW6462542
Category

Power Management IC
Package

DIP-8
Description

TEXAS INSTRUMENTS UC3853N PFC Controller IC, 11V to 40V & 10mA Supply, 11V Lockout, 93% Duty Cycle, 75kHz, DIP-8
Documentation

Datasheet

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UC3853N Specifications

Attribute	Attribute Value

Part Number	UC3853N
Manufacturer	TI
ChipWorker Part#	CW6462542
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	8 Pin
Case/Package	DIP-8
Frequency	75 kHz
Supply Voltage (DC)	11.0V (min)
Number of Outputs	1 Output
Output Voltage	17.5 V
Supply Current	10.0 mA
Number of Positions	8 Position
Switching Frequency	56kHz ~ 94kHz
Duty Cycle	93 %
Input Voltage (Max)	5 V
Output Voltage (Max)	17.5 V
Output Current (Max)	0.5 A
Maximum Duty Cycle	93 %
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage	12V ~ 40V
Supply Voltage (Max)	40 V
Supply Voltage (Min)	11 V
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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
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UC3853N is a high-power Factor Pre-regulator provides simple, yet high performance active power factor correction. Using the same control technique as the UC1854, this 8-pin device exploits a simplified architecture and an internal oscillator to minimize external component count. The UC3853 incorporates a precision multiplier/squarer/divider circuit, voltage and current loop error amplifiers and a precision voltage reference to implement average current-mode control with RMS line voltage compensation. This control technique maintains constant loop gain with changes in input voltage, which minimizes input line current distortion over the worldwide input voltage range. The internal 75kHz oscillator includes an external clock input, allowing synchronization to downstream converters. Additionally, the device features an overvoltage protection comparator, a clamped MOSFET gate driver which self-biases low during undervoltage lockout and low startup and supply current.
Reduced external components
RMS Line voltage compensation
Precision multiplier/squarer/divider
Average current mode PWM control
Overvoltage protection comparator
High current, clamped gate driver
Green product and no Sb/Br

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