ML4818 Description
The ML4818 is a plete phase modulation control IC suitable for full bridge soft switching converters. Unlike conventional PWM circuits, the phase modulation technique allows for zero-voltage switching transitions and square wave drive across the transformer. The IC modulates the phases of the two sides of the bridge to control output power.
ML4818 Key Features
- Full bridge phase modulation zero voltage switching circuit with programmable ZV transition times
- Constant frequency operation to 500kHz
- Current mode operation
- Cycle-by-cycle current limiting with integrating fault detection and restart delay
- Precision buffered 5V reference (+1%)
- Four 1.5A peak current totem-pole output drivers
- Under-voltage lockout circuit with 6V hysteresis
- Power DIP package
- T FLIP FLOP V+ I1
- REV. 1.0.3 6/21/01