Datasheet > UCC3818ADG4

UCC3818ADG4

更新时间： 2024-11-27 02:58:51

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
33页	639K
描述
BiMOS POWER FACTOR PREREGULATOR

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

UCC3818ADG4 数据手册

ꢀꢁꢁ ꢂ ꢃꢄ ꢅ ꢆ ꢇ ꢀꢁ ꢁꢂ ꢃꢄ ꢃꢆ

ꢀꢁꢁ ꢈ ꢃꢄ ꢅ ꢆ ꢇ ꢀ ꢁꢁ ꢈꢃ ꢄꢃ ꢆ

ꢉ

SLUS577B − SEPTEMBER, 2003 − REVISED FEBRUARY 2006

ꢊ

ꢋ

ꢁ

ꢌ

ꢍ

ꢎ

ꢏ

ꢍ

ꢐ

ꢑ

ꢒ

ꢓ

ꢆ

ꢁ

ꢔ

ꢍ

ꢒ

ꢏ

ꢒ

ꢑ

ꢒ

ꢑ

ꢕ

ꢀ

ꢖ

ꢆ

ꢔ

ꢍ

ꢒ

FEATURES

DESCRIPTION

Controls Boost Preregulator to Near-Unity

Power Factor

The UCC3817A and the UCC3818A family

provides all the functions necessary for active

power factor corrected preregulators. The

controller achieves near unity power factor by

shaping the ac input line current waveform to

correspond to that of the ac input line voltage.

Average current mode control maintains stable,

low distortion sinusoidal line current.

Limits Line Distortion

World Wide Line Operation

Over-Voltage Protection

Accurate Power Limiting

Average Current Mode Control

Improved Noise Immunity

Improved Feed-Forward Line Regulation

Leading Edge Modulation

150-µA Typical Start-Up Current

Low-Power BiCMOS Operation

12-V to 17-V Operation

Designed in Texas Instrument’s BiCMOS process,

the UCC3817A/UCC3818A offers new features

such as lower start-up current, lower power

dissipation, overvoltage protection, a shunt UVLO

detect circuitry, a leading-edge modulation

technique to reduce ripple current in the bulk

capacitor and an improved, low-offset ( 2 mV)

current amplifier to reduce distortion at light load

conditions.

BLOCK DIAGRAM

VCC

OVP/EN 10

SS 13

16 V (FOR UCC3817A ONLY)

7.5 V

REFERENCE

VREF

UVLO

16 V/10 V (UCC3817A)

1.9 V

ENABLE

−

VAOUT

10.5 V/10 V (UCC3818A)

ZERO POWER

0.33 V

VCC

−

VOLTAGE

ERROR AMP

VSENSE 11

7.5 V

−

CURRENT

AMP

8.0 V

PWM

OVP

−

MULT

−

16 DRVOUT

−

VFF

PWM

LATCH

OSC

CLK

MIRROR

2:1

GND

CLK

OSCILLATOR

IAC

PKLMT

−

MOUT

CAI

CAOUT RT

UDG-03122

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

ꢏ

ꢒ

ꢍ

ꢨ

ꢗ

ꢣ

ꢀ

ꢁ

ꢡ

ꢔ

ꢢ

ꢘ

ꢜ

ꢍ

ꢚ

ꢙ

ꢛ

ꢗ

ꢆ

ꢔ

ꢆ

ꢋ

ꢚ

ꢤ

ꢛ

ꢜ

ꢢ

ꢝ

ꢞ

ꢟ

ꢠ

ꢋ

ꢜ

ꢚ

ꢋ

ꢡ

ꢥ

ꢢ

ꢣ

ꢠ

ꢝ

ꢪ

ꢝ

ꢤ

ꢚ

ꢠ

ꢟ

ꢞ

ꢡ

ꢜ

ꢛ

ꢥ

ꢔꢤ

ꢣ

ꢦ

ꢡ

ꢧ

ꢋ

ꢢ

ꢟ

ꢡ

ꢠ

ꢋ

ꢠ

ꢜ

ꢝ

ꢚ

ꢣ

ꢨ

ꢟ

ꢚ

ꢠ

ꢤ

ꢡ

ꢩ

ꢝ

ꢜ

ꢢ

ꢠ

ꢜ

ꢝ

ꢞ

ꢠ

ꢜ

ꢡ

ꢥ

ꢋ

ꢛ

ꢋ

ꢢ

ꢤ

ꢝ

ꢠ

ꢤ

ꢝ

ꢜ

ꢛ

ꢫ

ꢟ

ꢘ

ꢚ

ꢞ

ꢤ

ꢡ

ꢠ

ꢟ

ꢚ

ꢨ

ꢟ

ꢝ

ꢨ

ꢬ

ꢟ

ꢠ ꢤ ꢡ ꢠꢋ ꢚꢮ ꢜꢛ ꢟ ꢧꢧ ꢥꢟ ꢝ ꢟ ꢞ ꢤ ꢠ ꢤ ꢝ ꢡ ꢩ

ꢝ

ꢟ

ꢚ

ꢠ

ꢭ

ꢩ

ꢏ

ꢝ

ꢜ

ꢨ

ꢣ

ꢢ

ꢠ

ꢋ

ꢜ

ꢚ

ꢥ

ꢝ

ꢜ

ꢢ

ꢤ

ꢡ

ꢋ

ꢚ

ꢮ

ꢨ

ꢜ

ꢤ

ꢡ

ꢚ

ꢜ

ꢠ

ꢚ

ꢤ

ꢢꢤ

ꢡ

ꢟ

ꢝ

ꢋ

ꢧ

ꢭ

ꢋ

ꢚ

ꢢ

ꢧ

ꢣ

ꢨ

ꢤ

www.ti.com

12 3 4 5 6 7...33

中文翻译

下载PDF

与UCC3818ADG4相关器件

型号	品牌	获取价格	描述	数据表
UCC3818ADR	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818ADRG4	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818AN	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818ANG4	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818APW	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818APWG4	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818APWR	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818APWRG4	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818D	TI	获取价格	BiCMOS POWER FACTOR PREREGULATOR
UCC3818D	ROCHESTER	获取价格	1.2A POWER FACTOR CONTROLLER, 120kHz SWITCHING FREQ-MAX, PDSO16, GREEN, PLASTIC, MS-012AC,

与UCC3818ADG4相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

45
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

34
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

62
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

59

产品中心

服务支持

精选活动

关于我们

帮助中心

UCC3818ADG4

UCC3818ADG4 数据手册

与UCC3818ADG4相关器件

与UCC3818ADG4相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

UCC3818ADG4

UCC3818ADG4 数据手册

与UCC3818ADG4相关器件

与UCC3818ADG4相关文章

您还可以找

您在本页遇到什么问题？