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UCC28516
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UCC28516

  • Category:ACDC- and -DCDC-power supply
  • Product Name:Advanced PFC/PWM combo controller
  • Manufacturers:TI
  • Production Batch Number:10+
  • Encapsulation:20PDIP, 20SOIC
  • Stock Status:There is stock
  • Stock Quantity:15000
  • Minimum order quantity: 1
  • Details:Click here to find a pdf of UCC28516
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  • Product introduction

The UCC28510 series of combined PFC/PWM controllers provides complete control functions for any offline power required with IEC1000-3-2 harmonic reduction systems. By combining the control and drive signals of PFC and PWM stages into a single device, significant performance and cost advantages are beneficial. The ripple current in the boost capacitor is minimized by managing the two-stage mechanism of modulation (for PFC-leading modulation and PWM modulation with trailing edge).

Based on an average current mode control architecture, the input voltage is fed forward by the PFC/PWM combo controller, which provides performance benefits to these devices. Two new key features are programmable PWM maximum duty cycle and the option base PFC frequency of 2 PWM frequencies.

characteristic
 
  • The PFC and PWM power stages are controlled in one device
  • Leading edge PFC, trailing edge PWM modulation reduces ripple
  • Built-in PFC and PWM sequencing turned up
  • 2, Source and 3 Sink are suitable for PFC and PWM gate drive in both stages
  • A typical rise time of 16 - ns and a fall time of 7 ns are 1 - NF load
  • Features of PFC
    • Continuous conduction mode operation for average current mode control
    • High linear multiplier has a power factor of nearly 1
    • Input voltage feed-forward implementation
    • Improved load transient response
    • Precise power limiting
    • Zero power detection
  • Features of PWM
    • Peak current mode control operation
    • 1:1 or 1:2 PFC:PWM frequency options
    • Programmable maximum duty cycle
    • Programmable soft-start
    • Two different hold-time requirement hysteresis options
parameter
  UCC28516
On/Off of Undervoltage Lockout Threshold (5) 16/10
Operating power supply (max) (5) 18
Starting current (mA) 0.1
Operating Supply Current (mA) 4
Actual operating frequency (max) (MHz) 0.5
Pins/Packets 20SOIC

andUCC28516Related ICs are:


Model Manufacturers lot number encapsulation illustrate
UCC28516N TI 10+ 20-PDIP Advanced PFC/PWM controller
UCC28516DW TI N／A N／A Advanced PFC/PWM controller
UCC28516 TI 10+ 20PDIP, 20SOIC Advanced PFC/PWM combo controller

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