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UCC28231
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UCC28231

  • Category:ACDC- and -DCDC-power supply
  • Product Name:Advanced PWM controller for bus converters with a precision 3.3V voltage reference
  • Manufacturers:TI
  • Production Batch Number:11+
  • Encapsulation:12USON, 14TSSOP
  • Stock Status:There is stock
  • Stock Quantity:9000
  • Minimum order quantity: 1
  • Details:点击查找UCC28231的pdf资料
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  • Product introduction

该UCC28230，UCC28231 PWM的总线控制器优化了高效率，高功率密度，无管制中间总线转换器。 拓扑包括推挽，半桥和全桥。 外部驱动器，这样asthe UCC27200 120 - V的high-side/low-side驱动程序，可以使用该控制器。

低成本，小尺寸和高效率的解决方案是由创新提供了诸如：

  • 启动频率控制电路，允许小的输出电感变化与能力，启动大型中间总线电容。
  • 负载依赖关断时间控制由用户设置。

其它1 - D控制输出可以用于主绕组自驱动同步整流输出应用夹紧或作为控制驱动同步整流驱动信号。

characteristic
 
  • 可编程，依托关时间控制负荷
  • 变频调速起动允许与大输出电容较小的输出电感，低纹波，恒定电流启动
  • 两个0.2推挽输出提供配合控制信号三维对外来驱动
  • 两项附加1 - D输出的自驱动同步整流器驱动或控制的最佳使用
  • 不受管制，固定伏秒或固定频率由用户设置模式
  • 二，整体精度为1.5％基准电压选项：5中，UCC28230和3.3 - V的V的UCC28231
  • 电阻可编程开关频率高达1 MHz
  • 逐允许逐周期电流限制与下垂的电流型并联运行共享
  • 单个外部电容器组软过电流打嗝模式参数启动和重新启动
  • 严重的短路打嗝与重新启动或闭锁的保护外部电阻选择
  • 输入输出欠压锁定
  • Thermal shutdown
  • 耐热增强型3毫米× 2毫米SON - 12和TSSOP - 14封装选择
  • apply
    • 中间总线隔离式转换器
    • 的DC - DC变压器
parameter
    UCC28231
topology   推挽，半桥，全桥
Control method   Voltage mode
Duty cycle (max.) (%)   100
Frequency (max) (khertz)   1000
On/Off of Undervoltage Lockout Threshold (5)   6.3/5.7
Pins/Packets   12USON，14TSSOP
(#) Regulated output   One
Operating temperature range(°C)   -55 to 125

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UCC28231 TI 11+ 12USON, 14TSSOP Advanced PWM controller for bus converters with a precision 3.3V voltage reference

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