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Dual Interleaved PWM Controller with Programmable Max Duty Cycle


Package | PIN: PW | 16
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $4.32
10-24 $3.89
25-99 $3.63
100-249 $3.26
250-499 $3.04
500-749 $2.64
750-999 $2.29
1000+ $2.24


  • Qualified for Automotive Applications
  • 2-MHz High-Frequency Oscillator With 1-MHz Operation Per Channel
  • Matched Internal Slope Compensation Circuits
  • Programmable Maximum Duty Cycle Clamp 60% to 90% Per Channel
  • Peak Current Mode Control With Cycle-by-Cycle Current Limit
  • Current Sense Discharge Transistor for Improved Noise Immunity
  • Accurate Line Undervoltage and Overvoltage Sense With Programmable Hysteresis
  • Opto-Coupler Interface
  • Operates From 12-V Supply
  • Programmable Soft-Start
    • High Output Current (50 A to 100 A) Converters
    • Maximum Power Density Designs
    • High-Efficiency 48-V Input with Low-Output Ripple Converters
    • High-Power Offline, Telecom, and Datacom Power Supplies

PowerPAD is a trademark of Texas Instruments.

Texas Instruments  UCC28220QPWRQ1

The UCC28220 is a BiCMOSinterleaved dual-channel PWM controller. Peak current mode control is used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel. UCC28220 has an UVLO turn-on threshold of 10 V for use in 12-V supplies. It has 8-V turn-off threshold.

Additional features include a programmable internal slope compensation with a special circuit that ensures exactly the same slope is added to each channel. The UCC28220 is available in a 16-pin low-profile TSSOP package.