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.
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.