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AC/DC 和 DC/DC 控制器 (外部 FET)

UCC28220

現行

具有可編程最大工作週期 10V/8V UVLO 的雙交錯式 PWM 控制器

立即訂購
產品規格表

UCC28220

現行
產品規格表 立即訂購

產品詳細資料

Vin (max) (V) 14.5 Operating temperature range (°C) -40 to 105 Control mode Current Topology Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Input line monitor, Multi-topology, Programmable max duty cycle, Programmable slope compensation, Soft start Duty cycle (max) (%) 90
Vin (max) (V) 14.5 Operating temperature range (°C) -40 to 105 Control mode Current Topology Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Input line monitor, Multi-topology, Programmable max duty cycle, Programmable slope compensation, Soft start Duty cycle (max) (%) 90
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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類型 標題 日期
* Data sheet UCC2822x Interleaved Dual PWM Controller With Programmable Max Duty Cycle datasheet (Rev. G) PDF | HTML 2017年 4月 6日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note 350-W, Two Phase Interleaved PFC Pre-Regulator (Rev. C) 2013年 9月 20日
User guide 350-W Interleaved PFC Pre-Regulator 2005年 8月 29日
More literature Seminar 300 Topic 8 - Switching Power Supply Design Review 2001年 2月 15日
More literature Seminar 400 Topic 2 - Design of Flyback Transformers and Filter Inductors 2001年 2月 15日

設計與開發

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計算工具

UCC28221-CALC — UCC28221 MathCAD 計算公用程式

This Mathcad design tool was developed to use with the UCC28221 application note SLUA312.
View Options
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 16 Ultra Librarian
TSSOP (PW) 16 Ultra Librarian
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  • 鉛塗層/球物料
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  • 認證摘要
  • 進行中持續性的可靠性監測
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