The Texas Instruments UC1875 family of integrated circuits implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This family of circuits may be configured to provide control in either voltage or current mode operation, with a separate over-current shutdown for fast fault protection.

Zero to 100% Duty Cycle Control
Programmable Output Turn-On Delay
Compatible with Voltage or Current Mode Topologies
Practical Operation at Switching Frequencies to 1MHz
Four 2A Totem Pole Outputs
10MHz Error Amplifier
Under voltage Lockout
Low Start-up Current—150μA
Outputs Active Low During UVLO
Soft-Start Control
Latched Over-Current Comparator With Full Cycle Restart
Trimmed Reference

PWM (Pulse Width Modulation) Controllers, Texas Instruments