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UCC2803-Q1
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UCC2803-Q1

  • Category:ACDC- and -DCDC-power supply
  • Product Name:Automotive low-power BiCMOS current-mode PWM
  • Manufacturers:TI
  • Production Batch Number:10+
  • Encapsulation:8SOIC
  • Stock Status:There is stock
  • Stock Quantity:6000
  • Minimum order quantity: 1
  • Details:Click here to find PDF information on the UCC2803-Q1
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  • Product introduction

The high-speed, low-power integrated circuit contains all the control and driver components required for the UCC2800/1/2/3/4/5 family for off-line and DC fixed frequency current mode switching power supplies with a minimum number of components.

These devices have the same pin configuration as the UC2842/3/4/5 series, and also offer internal full-cycle soft-start and internal leading-edge current-sense input blanking value-added features.

The UCC2800/1/2/3/4/5 family provides a choice of maximum duty cycle and voltage level critically. Reference parts such as UCC2803 and UCC2805 work best with battery-powered systems, while higher reference and UCC2802 and UCC2804 have higher UVLO hysteresis ideal for using these in offline power supplies.

characteristic

 
  • Qualified automotive applications
  • ESD protection over 200 V using the machine model (C = 200 pF, R = 0)
  • Typical supply current start-up of 100μA
  • Typical operating current of 500μA
  • Runs up to 1MHz
  • Internal soft start
  • Internal soft-start failure
  • Built-in leading-edge blanking current sense signal
  • 1 amp totem pole output
  • Typical gate drive output response from 70 ns current sensing
  • 1.5% tolerance voltage reference
  • The same pins are UC3842 and UC3842A
parameter
        UCC2803 - Season 1  
topology          
Control method       Current mode  
Duty cycle (max.) (%)       100  
Frequency (max) (khertz)       1000  
On/Off of Undervoltage Lockout Threshold (5)       4.1/3.6  
Pins/Packets       8SOIC  
(#) Regulated output       One  
Operating temperature range(°C)       -40 to 125  

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