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交流/直流和直流/直流控制器（外部 FET）

UCC28221

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具有可编程最大占空比 13V/8V UVLO 的汽车类双路交错式 2MHz PWM 控制器

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数据表

UCC28221

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数据表 立即订购

产品详情

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, High-voltage startup, 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, High-voltage startup, 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) 20 41.6 mm² 6.5 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 200-W Interleaved Forward Converter Design Review Using TI's UCC28221 PWM Contro 2004年 4月 19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

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

计算工具

SLUC046 — UCC28221 Application Design Tool

支持的产品和硬件

支持的产品和硬件

产品
交流/直流和直流/直流控制器（外部 FET）
UCC28221 — 具有可编程最大占空比 13V/8V UVLO 的汽车类双路交错式 2MHz PWM 控制器
软件
计算工具
UCC28221-CALC — UCC28221 MathCAD 计算实用程序
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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.
View Options
封装 引脚 CAD 符号、封装和 3D 模型
SOIC (D) 16 Ultra Librarian
TSSOP (PW) 20 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • 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

支持和培训

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