UCC28513NE4

更新时间： 2024-11-25 22:14:31

品牌	Logo	应用领域
德州仪器 - TI		功率因数校正
页数	文件大小	规格书
39页	720K
描述
ADVANCED PFC/PWM COMBINA CONTROLLERS

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中文翻译

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数据手册
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UCC28513NE4 数据手册

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ꢀꢁꢁ ꢂ ꢃꢄ ꢅ ꢉ ꢇ ꢀꢁꢁ ꢂ ꢃꢄ ꢅ ꢄ ꢇ ꢀꢁꢁ ꢂ ꢃꢄ ꢅ ꢊ ꢇ ꢀꢁ ꢁꢂ ꢃꢄ ꢅꢋ

SLUS517B − DECEMBER 2002 − REVISED AUGUST 2004

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FEATURES

DESCRIPTION

The UCC28510 series of combination PFC/PWM

Provides Control of PFC and PWM Power

Stages In One Device

controllers provide complete control functionality

for any off-line power system requiring

compliance with the IEC1000−3−2 harmonic

reduction requirements. By combining the control

and drive signals for the PFC and the PWM stages

into a single device, significant performance and

cost benefits are gained. By managing the

modulation mechanisms of the two stages

(leading-edge modulation for PFC and

trailing-edge modulation for PWM), the ripple

current in the boost capacitor is minimized.

Based on the average current mode control

architecture with input voltage feedforward of prior

PFC/PWM combination controllers, these devices

offer performance advantages. Two new key

PWM features are programmable maximum duty

cycle and the 2x PWM frequency options to the

base PFC frequency. For the PFC stage, the

devices feature an improved multiplier and the

use of a transconductance amplifier for enhanced

transient response.

Leading-Edge PFC, Trailing-Edge PWM

Modulation for Reduced Ripple

Built-In Sequencing of PFC and PWM

Turn-On

2-A Source and 3-A Sink Gate Drive for Both

PFC and PWM Stages

Typical 16-ns Rise Time and 7-ns Fall Time

into 1-nF Loads

PFC Features

− Average-Current-Mode Control for

Continuous Conduction Mode Operation

− Highly-Linear Multiplier for Near-Unity

Power Factor

− Input Voltage Feedforward Implementation

− Improved Load Transient Response

− Accurate Power Limiting

− Zero Power Detect

PWM Features

− Peak-Current-Mode Control Operation

− 1:1 or 1:2 PFC:PWM Frequency Options

− Programmable maximum duty cycle

− Programmable Soft-Start

− Two Hysteresis Options for Differing

Hold-Up Time Requirements

The core of the PFC section is in a three-input

multiplier that generates the reference signal for

the line current. The UCC28510 series features a

highly linearized multiplier circuit capable of

producing a low distortion reference for the line

current over the full range of line and load

conditions. A low-offset, high-bandwidth current

error amplifier ensures that the actual inductor

current (sensed through a resistor in the return

path) follows the multiplier output command

signal. The output voltage error is processed

through a transconductance voltage amplifier.

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www.ti.com

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中文翻译

下载PDF

UCC28513NE4 替代型号

型号	品牌	替代类型	描述	数据表
UCC28513N	TI	类似代替	ADVANCED PFC/PWM COMBINATION CONTROLLERS

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UCC28514DWRG4	TI	获取价格	ADVANCED PFC/PWM COMBINATION CONTROLLERS
UCC28514N	TI	获取价格	ADVANCED PFC/PWM COMBINATION CONTROLLERS
UCC28514NE4	TI	获取价格	ADVANCED PFC/PWM COMBINA CONTROLLERS
UCC28515	TI	获取价格	ADVANCED PFC/PWM COMBINATION CONTROLLERS
UCC28515DW	TI	获取价格	ADVANCED PFC/PWM COMBINATION CONTROLLERS
UCC28515DWG4	TI	获取价格	ADVANCED PFC/PWM COMBINATION CONTROLLERS

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