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UCC2808-1
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UCC2808-1

  • Category:ACDC- and -DCDC-power supply
  • Product Name:Low power current mode push-pull PWM
  • Manufacturers:TI
  • Production Batch Number:10+
  • Encapsulation:8PDIP, 8SOIC
  • Stock Status:There is stock
  • Stock Quantity:6000
  • Minimum order quantity: 1
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  • Product introduction

UCC3808 представляет собой семейство двухтактных, высокоскоростных, маломощных, широтно-импульсных модуляторов на основе BiCMOS. Содержит все схемы управления и привода, необходимые UCC3808 для переключения источника питания постоянного тока в постоянный ток с фиксированной частотой с минимальным количеством внешних компонентов.

Ступень UCC3808 драйвера с двумя выходами выполнена в двухтактной конфигурации. Half of the oscillators of the two output switches use the frequency of a switching trigger. The dead time between the two outputs is typically 60 nanoseconds to 200 nanoseconds, depending on the values of the capacitance and resistance, limiting the duty cycle of each output stage to less than 50%.

Семейство UCC3808 предлагает различные диапазоны температур корпуса, уровни блокировки при пониженном напряжении и опции.

characteristic
 
  • The dual output drive stage is in a push-pull configuration
  • Типичный пусковой ток 130 мкА
  • Typical operating current of 1 mA
  • Работает на частоте до 1 МГц
  • Internal soft start
  • В микросхеме усилителя с погрешностью произведения коэффициента усиления и полосы пропускания 2 МГц
  • Clamping of on-chip VDD
  • Источник пикового тока 500 мА в выходном каскаде привода может поглотить 1 пиковый ток
parameter
  УКК2808 - 1  
topology Full bridge, half bridge, push and pull  
Control method Current mode  
Duty cycle (max.) (%) 50  
Frequency (max) (khertz) 1000  
On/Off of Undervoltage Lockout Threshold (5) 12.5/8.3  
Pins/Packets 8PDIP,8SOIC  
(#) Regulated output 2  
Operating temperature range(°C) -40 to 85  

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