UCC25600 8-pin high-performance resonant mode LLC controller | TI.com

UCC25600 (ACTIVE) 8-pin high-performance resonant mode LLC controller

 

Description

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.

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

Parametrics

Compare all products in PWM controllers & resonant controllers Email Download to Excel
Part number Order Topology Control method VCC (Min) (V) VCC (Max) (V) Frequency (Max) (kHz) Duty cycle (Max) (%) Gate drive (Typ) (A) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
UCC25600 Order now Half-Bridge
Resonant LLC    
Voltage     11     18     350     50     0.8     Thermal Shutdown     Catalog     -40 to 125     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
UCC256301 Order now Half-Bridge
Resonant LLC    
Current     13     30     1000     50     0.6     HV Start-up
Integrated Gate Drivers
Light Load Efficiency
Thermal Shutdown
Wide DC input
X cap discharge integrated    
Catalog     -40 to 125     SOIC | 14     14SOIC: 59 mm2: 6 x 9.9 (SOIC | 14)    
UCC256302 Order now Half-Bridge
Resonant LLC    
Current     13     30     1000     50     0.6     HV Start-up
Integrated Gate Drivers
Light Load Efficiency
Thermal Shutdown    
Catalog     -40 to 125     SOIC | 14     14SOIC: 59 mm2: 6 x 9.9 (SOIC | 14)    
UCC256303 Order now Half-Bridge
Resonant LLC    
Current     11.25     30     1000     50     0.6     Integrated Gate Drivers
Light Load Efficiency
Supports external bias
Thermal Shutdown    
Catalog     -40 to 125     SOIC | 14     14SOIC: 59 mm2: 6 x 9.9 (SOIC | 14)    
UCC256304 Order now Half-Bridge
Resonant LLC    
Current     13     30     1000     50     0.6     HV Start-up
Integrated Gate Drivers
Light Load Efficiency
Thermal Shutdown
Wide AC input
Wide DC input
X cap discharge integrated    
Catalog     -40 to 125     SOIC | 14     14SOIC: 59 mm2: 6 x 9.9 (SOIC | 14)    
UCC256403 Order now Half-Bridge
Resonant LLC    
Current     11.25     30       50     0.6     Integrated gate drivers
Light Load Efficiency
Low Power
Programmable Soft Start
Thermal Shutdown
Zero Voltage Switching    
Catalog     -40 to 125     SOIC | 14     14SOIC: 59 mm2: 6 x 9.9 (SOIC | 14)    
UCC256404 Order now Half-Bridge
Resonant LLC    
Current     13     30       50     0.6     HV Start-up
Light Load Efficiency
Low Power
Wide AC input
X cap discharge integrated
Zero Voltage Switching    
Catalog     -40 to 125     SOIC | 14     14SOIC: 59 mm2: 6 x 9.9 (SOIC | 14)