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UCC2807-3
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UCC2807-3

  • Category:ACDC- and -DCDC-power supply
  • Product Name:Programmable maximum duty cycle PWM controller
  • Manufacturers:TI
  • Production Batch Number:10+
  • Encapsulation:8SOIC
  • Stock Status:There is stock
  • Stock Quantity:6000
  • Minimum order quantity: 1
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  • Product introduction

The UCC3807 family of high-speed, low-power integrated circuits contains all the control and drive circuitry required for off-line and switching power supplies DC-to-DC fixed-frequency current mode with minimal number of external components.

These devices are similar to the UCC3800 family, but with additional features with a user-programmable maximum duty cycle. The oscillator frequency and maximum duty cycle are programmed with two resistors and one capacitor. The UCC3807 series also features an internal soft-start and a current sense input for full cycle lead edge blanking.

The UCC3807 series offers packages, temperature range options, and a choice of various critical voltage levels. This home has undervoltage lockout thresholds and levels of lag in offline and battery-powered systems.

characteristic
 
  • User-programmable maximum PWMDuty period
  • 100 starting current
  • to 1 MHz operation
  • Internal full-cycle soft start
  • Blanking of the internal leading edge current sense signal
  • 1 totem pole output
parameter
  UCC2807 - 3  
topology Boost, reverse, forward  
Control method Current mode  
Duty cycle (max.) (%) 78  
Frequency (max) (khertz) 1000  
On/Off of Undervoltage Lockout Threshold (5) 4.3/4.1  
Pins/Packets 8SOIC  
(#) Regulated output One  
Operating temperature range(°C) -40 to 85  

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