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UCC28220的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:交流/直流和隔离式直流/直流开关稳压器 - PWM 控制器
  • 功能描述:具有可编程最大占空比 10V/8V UVLO 的双路交错式 PWM 控制器
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UCC28220的产品详情:

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.

UCC28220的优势和特性:
  • 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
UCC28220的参数(英文):
  • Topology
  • Flyback, Forward
  • Duty cycle (Max) (%)
  • 90
  • Supply voltage (Max) (V)
  • 14.5
  • UVLO thresholds on/off (V)
  • 10.0/8.0
  • Features
  • Adjustable Switching Frequency, Current Limiting, Input Line Monitor, Multi-topology, Programmable Max Duty Cycle, Programmable Slope Compensation, Soft Start
  • Operating temperature range (C)
  • -40 to 105
  • Rating
  • Catalog
  • Frequency (Max) (kHz)
  • 2000
  • Gate drive (Typ) (A)
  • 0.01
UCC28220具体的完整产品型号参数及价格(美元):

UCC28220的完整型号有:UCC28220D、UCC28220DR、UCC28220PW、UCC28220PWR,以下是这些产品的关键参数及官网采购报价:

UCC28220D,工作温度:-40 to 105,封装:SOIC (D)-16,包装数量MPQ:40个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网UCC28220D的批量USD价格:2.107(1000+)

UCC28220DR,工作温度:-40 to 105,封装:SOIC (D)-16,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网UCC28220DR的批量USD价格:1.756(1000+)

UCC28220PW,工作温度:-40 to 105,封装:TSSOP (PW)-16,包装数量MPQ:90个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网UCC28220PW的批量USD价格:2.107(1000+)

UCC28220PWR,工作温度:-40 to 105,封装:TSSOP (PW)-16,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网UCC28220PWR的批量USD价格:1.756(1000+)

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UCC28220的评估套件:

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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