Datasheet > UCC28065

UCC28065

更新时间： 2024-09-16 11:14:27

品牌	Logo	应用领域
德州仪器 - TI		开关控制器功率因数校正
页数	文件大小	规格书
55页	4340K
描述
具有高频开关功能的 Natural Interleaving™ 转换模式 PFC 控制器

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UCC28065

SLUSDW0B –MAY 2020–REVISED MAY 2020

UCC28065 Natural Interleaving™ Transition-Mode PFC Controller

with High Light-Load Efficiency Supporting High-Frequency Switching up-to 800 kHz

1 Features

3 Description

The UCC28065 interleaved PFC controller enables

transition mode PFC at higher power ratings than

previously possible. The device uses a Natural

Interleaving™ technique to maintain a 180-degree

phase shift. Both channels operate as masters (there

is no slave channel) synchronized to the same

frequency. This approach enables faster response

time, accurate phase shift, and transition mode

operation for each channel. The device has a burst

mode function to get high light-load efficiency. Burst

mode eliminates the need to turn off the PFC during

light load operation to meet standby power targets,

eliminating the need for an auxiliary Flyback when

paired with UCC25640x LLC controller and the

UCC24612 or UCC24624 synchronous rectifier

controllers. The increased frequency clamping

doubles the switching frequency capability compared

with previous generation devices. The increased

switching frequency range also allows the design to

fully utilize the benefits of GaN MOSFETs such as

LMG3410 and SiC MOSFETs.

•

Input filter and output capacitor ripple-current

reduction

–

Reduced current ripple for higher system

reliability and smaller bulk capacitor

–

Reduced EMI filter size

•

Higher switching frequency support

–

Up-to 800-kHz switching frequency, reducing

boost inductor size to at least one-half in size

–

Improved input-current THD

High light-load efficiency

–

User adjustable phase management with input

voltage compensation

Burst mode operation with adjustable burst

threshold

Helps enable compliance to EUP Lot6 tier II,

CoC tier II and DOE Level VI standards

•

Sensorless current-shaping simplifies board layout

and improves efficiency

Device Information⁽¹⁾

Input line feed-forward for fast line transient

response

PART NUMBER

PACKAGE

BODY SIZE (NOM)

UCC28065

SOIC (16)

9.90 mm × 3.91 mm

Inrush-safe current limiting:

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

–

Prevents MOSFET conduction during inrush

Eliminates CCM operation and reverse

recovery events in output rectifier

P_OUT= 600 W

V_OUT= 40 V

1-phase TM

2 Applications

1-phase CCM

•

Slim AC/DC for LED and OLED TVs

All-in-one PC

High-density AC/DC and gaming adapters

Home audio systems

2-phase TM Interleaved

120

170

220

270

Input Voltage (V)

Server, telecom, and DIN rail power supplies

Simplified Application

UCC28065

ZCD_B

R_ZCDB

R_ZCDA

VRECT

ZCD_A

VREF

GDA

VOUT

L_B

L_A

VSENSE

TSET

PHB Threshold

PHB

PGND

VCC

VSENSE

HVSEN

VCC

COMP

GDB

VINAC

HVSEN

AGND

VRECT

R_CS

HVSEN

BRST

Burst Threshold

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...55

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与UCC28065相关器件

型号	品牌	获取价格	描述	数据表
UCC28065DR	TI	获取价格	具有高频开关功能的 Natural Interleaving™ 转换模式 PFC 控制器
UCC28065DT	TI	获取价格	具有高频开关功能的 Natural Interleaving™ 转换模式 PFC 控制器
UCC2806D	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER
UCC2806DG4	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER
UCC2806DTR	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER
UCC2806DTRG4	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER
UCC2806DW	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER
UCC2806DWG4	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER
UCC2806DWTR	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER
UCC2806DWTRG4	TI	获取价格	LOW-POWER, DUAL-OUTPUT, CURRENT-MODE PWM CONTROLLER

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