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UCC3581
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UCC3581

  • Category:ACDC- and -DCDC-power supply
  • Product Name:Micropower voltage mode PWM
  • Manufacturers:TI
  • Production Batch Number:08+
  • Encapsulation:14PDIP, 14SOIC
  • Stock Status:There is stock
  • Stock Quantity:12000
  • Minimum order quantity: 1
  • Details:点击查找UCC3581的pdf资料
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  • Product introduction

在UCC3581电压模式脉冲宽度调制器的目的是控制低功率隔离式直流 - 如用户线路功率（ISDN的I.430）应用DC转换器。 主要用于单管正激和反激式转换器，UCC3581功能的BiCMOS低启动和工作电流电路，同时保持能够驱动功率MOSFET的频率高达100kHz。 在UCC3581振荡器可以灵活地计划的频率和与两个电阻和电容的最大占空比。 一个TTL电平输入也提供允许同步到一个外部频率源。

该UCC3581包括可编程软启动电路，过流检测，在7.5V线性预调节器来控制启动过程中芯片VDD和一个板上4。

characteristic
 
  • 低启动电流85μA
  • 低300μA工作电流
  • 自动禁用启动前置稳压器
  • 可编程最小占空比跳绳周期
  • Programmable maximum duty cycle
  • 输出电流1A峰值源库
  • Programmable soft-start
  • Programmable oscillator frequency
  • 外部振荡器同步能力
parameter
    UCC3581
topology   Boost, buck, reverse, forward
Control method   Voltage mode
Duty cycle (max.) (%)   83
Frequency (max) (khertz)   100
On/Off of Undervoltage Lockout Threshold (5)   7.3/6.8
Pins/Packets   14PDIP，14SOIC
(#) Regulated output   One
Operating temperature range(°C)   0 to 70

andUCC3581Related ICs are:


Model Manufacturers lot number encapsulation illustrate
UCC3581N UNITRODE 01+ DIP-14P Brand new original in stock
MC13581Z Motorola 2003 SIP Brand new in stock
UCC3581 TI 08+ 14PDIP, 14SOIC Micropower voltage mode PWM

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