Datasheet > UC1853N

UC1853N

更新时间： 2024-11-22 23:38:51

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
6页	228K
描述
Power Factor Controller

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数据手册

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UC1853N 数据手册

UC1853

UC2853

UC3853

High Power Factor Preregulator

DESCRIPTION

FEATURES

•

Complete 8-pin Power Factor

Solution

The UC3853 provides simple, yet high performance active power factor

correction. Using the same control technique as the UC1854, this 8-pin de-

vice exploits a simplified architecture and an internal oscillator to minimize

external component count. The UC3853 incorporates a precision multi-

plier/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 con-

stant loop gain with changes in input voltage, which minimizes input line

current distortion over the worldwide input voltage range.

•

Reduced External Components

RMS Line Voltage Compensation

Precision Multiplier/Squarer/Divider

Internal 75kHz Synchronizable

Oscillator

The internal 75kHz oscillator includes an external clock input, allowing syn-

chronization 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

•

Average Current Mode PWM

Control

•

Overvoltage Protection Comparator

High Current, Clamped Gate Driver current.

These devices are available in 8-pin plastic and ceramic dual in-line (DIP)

packages, and 8-lead small outline (SOIC) packages. The UC1853 is

specified for operation from –55°C to +125°C, the UC2853 is specified for

operation from –25°C to +85°C, and the UC3853 is specified for operation

from 0°C to +70°C.

BLOCK DIAGRAM

UDG-94120-1

11/97

12 3 4 5 6

中文翻译

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与UC1853N相关器件

型号	品牌	获取价格	描述	数据表
UC1854	TI	获取价格	High Power Factor Preregulator
UC1854_08	TI	获取价格	High Power Factor Preregulator
UC1854_16	TI	获取价格	High Power Factor Preregulator
UC1854A	TI	获取价格	ADVANCED HIGH-POWER FACTOR PREREGULATOR
UC1854A_13	TI	获取价格	ADVANCED HIGH-POWER FACTOR PREREGULATOR
UC1854A_15	TI	获取价格	ADVANCED HIGH-POWER FACTOR PREREGULATOR
UC1854ADWTR	TI	获取价格	暂无描述
UC1854AJ	ROCHESTER	获取价格	1.5 A POWER FACTOR CONTROLLER, 200 kHz SWITCHING FREQ-MAX, CDIP16
UC1854AL	TI	获取价格	1.5A POWER FACTOR CONTROLLER, 200kHz SWITCHING FREQ-MAX, CQCC20
UC1854AL883B	TI	获取价格	1.5A POWER FACTOR CONTROLLER, CQCC20, CERAMIC, LCC-20