UCC25600D

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UCC25600D

8-Pin High-Performance Resonant Mode LLC Controller

Packaging

Package | PIN: D | 8
Temp: Q (-40 to 125)
Carrier: Partial Tube
Qty Price
1-9 $1.28
10-24 $1.15
25-99 $1.06
100-249 $0.93
250-499 $0.86
500-749 $0.72
750-999 $0.59
1000+ $0.54

Features

  • Variable Switching Frequency Control
  • Programmable Minimum Switching Frequency
    With 4% Accuracy (3% Accuracy at Temperature
    Range: –20°C to 105°C)
  • Programmable Maximum Switching Frequency
  • Programmable Dead Time for Best Efficiency
  • Programmable Soft-Start Time
  • Easy ON and OFF Control
  • Overcurrent Protection
  • Overtemperature Protection
  • Bias Voltage UVLO and Overvoltage Protection
  • Integrated Gate Driver With 0.4-A Source and 0.8-
    A Sink Capability
  • Operating Temperature Range: –40°C to 125°C
  • SOIC 8-Pin Package

Texas Instruments  UCC25600D

The UCC25600 high performance, resonant mode controller is designed for dc-to-dc applications using resonant topologies, especially the LLC half-bridge resonant converter. This highly integrated controller implements frequency modulation control and complete system functions in only an 8-pin package. Switching to the UCC25600 will greatly simplify the system design and layout, and improve time to market, all at a price point lower than competitive 16-pin device offerings.

The internal oscillator supports the switching frequencies from 40 kHz to 350 kHz. This high-accuracy oscillator realizes the minimum switching frequency limiting with 4% tolerance, allowing the designer to avoid over-design of the power stage and, thus, further reducing overall system cost. The programmable dead time enables zero-voltage switching with minimum magnetizing current. This maximizes system efficiency across a variety of applications. The programmable soft-start timer maximizes design flexibility demanded by the varied requirements of end equipment using a half-bridge topology. By incorporating a 0.4-A source and 0.8-A sink driving capability, a low cost, reliable gate driver transformer is a real option.

The UCC25600 delivers complete system protection functions including overcurrent, UVLO, bias supply OVP, and overtemperature protection.