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UCC28220

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具有可编程最大占空比 10V/8V UVLO 的双路交错式 PWM 控制器

产品详情

Topology Flyback, Forward Control mode Current Duty cycle (max) (%) 90 Switching frequency (max) (kHz) 2000 Features Adjustable switching frequency, Current limiting, Input line monitor, Multi-topology, Programmable max duty cycle, Programmable slope compensation, Soft start UVLO thresholds on/off (V) 10/8 Operating temperature range (°C) -40 to 105 Rating Catalog Gate drive (typ) (A) 0.01 Vin (max) (V) 14.5
Topology Flyback, Forward Control mode Current Duty cycle (max) (%) 90 Switching frequency (max) (kHz) 2000 Features Adjustable switching frequency, Current limiting, Input line monitor, Multi-topology, Programmable max duty cycle, Programmable slope compensation, Soft start UVLO thresholds on/off (V) 10/8 Operating temperature range (°C) -40 to 105 Rating Catalog Gate drive (typ) (A) 0.01 Vin (max) (V) 14.5
SOIC (D) 16 59.4 mm² 9.9 x 6 TSSOP (PW) 16 32 mm² 5 x 6.4
  • 2-MHz High-Frequency Oscillator With 1-MHz Operation Per Channel
  • Matched Internal Slope Compensation Circuits
  • Programmable Maximum Duty Cycle Clamp 60% to 90% Per Channel
  • Peak Current Mode Control With Cycle-by-Cycle Current Limit
  • Current Sense Discharge Transistor for Improved Noise Immunity
  • Accurate Line Undervoltage and Overvoltage Sense With Programmable Hysteresis
  • Opto-Coupler Interface
  • 110-V Internal Start-Up JFET (UCC28221)
  • Operates From 12-V Supply (UCC28220)
  • Programmable Soft Start
  • 2-MHz High-Frequency Oscillator With 1-MHz Operation Per Channel
  • Matched Internal Slope Compensation Circuits
  • Programmable Maximum Duty Cycle Clamp 60% to 90% Per Channel
  • Peak Current Mode Control With Cycle-by-Cycle Current Limit
  • Current Sense Discharge Transistor for Improved Noise Immunity
  • Accurate Line Undervoltage and Overvoltage Sense With Programmable Hysteresis
  • Opto-Coupler Interface
  • 110-V Internal Start-Up JFET (UCC28221)
  • Operates From 12-V Supply (UCC28220)
  • Programmable Soft Start

The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers. Peak current mode control is used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel.

The UCC28220 has an UVLO turnon threshold of
10 V for use in 12-V supplies while UCC28221 has a turnon threshold of 13 V for systems needing wider UVLO hysteresis. Both have 8-V turnoff thresholds.

Additional features include a programmable internal slope compensation with a special circuit which is used to ensure exactly the same slope is added to each channel and a high-voltage 110-V internal JFET for easier start-up for the wider hysteresis UCC28221 version.

The UCC28220 is available in both 16-pin SOIC and low-profile TSSOP packages. The UCC28221 also comes in 16-pin SOIC package and a slightly larger 20-pin TSSOP package to allow for high-voltage pin spacing to meet UL1950 creepage clearance safety requirements.

The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers. Peak current mode control is used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel.

The UCC28220 has an UVLO turnon threshold of
10 V for use in 12-V supplies while UCC28221 has a turnon threshold of 13 V for systems needing wider UVLO hysteresis. Both have 8-V turnoff thresholds.

Additional features include a programmable internal slope compensation with a special circuit which is used to ensure exactly the same slope is added to each channel and a high-voltage 110-V internal JFET for easier start-up for the wider hysteresis UCC28221 version.

The UCC28220 is available in both 16-pin SOIC and low-profile TSSOP packages. The UCC28221 also comes in 16-pin SOIC package and a slightly larger 20-pin TSSOP package to allow for high-voltage pin spacing to meet UL1950 creepage clearance safety requirements.

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类型 标题 下载最新的英语版本 日期
* 数据表 UCC2822x Interleaved Dual PWM Controller With Programmable Max Duty Cycle 数据表 (Rev. G) PDF | HTML 2017年 4月 6日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 350-W, Two Phase Interleaved PFC Pre-Regulator (Rev. C) 2013年 9月 20日
用户指南 350-W Interleaved PFC Pre-Regulator 2005年 8月 29日
更多文献资料 Seminar 300 Topic 8 - Switching Power Supply Design Review 2001年 2月 15日
更多文献资料 Seminar 400 Topic 2 - Design of Flyback Transformers and Filter Inductors 2001年 2月 15日

设计和开发

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计算工具

UCC28221-CALC — UCC28221 MathCAD 计算实用程序

This Mathcad design tool was developed to use with the UCC28221 application note SLUA312.
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SOIC (D) 16 查看选项
TSSOP (PW) 16 查看选项

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  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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