UC3879 Overview
The UC3879 controls a bridge power stage by phase shifting the switching of one half-bridge with respect to the other. This allows constant frequency pulse width modulation in bination with resonant, zero-voltage switching for high efficiency performance. The UC3879 can be configured to provide control in either voltage mode or current mode operation, with overcurrent shutdown for fast fault protection.
UC3879 Key Features
- Programmable Output Turn On Delay; Zero Delay Available
- patible with Voltage Mode or Current Mode Topologies
- Practical Operation at Switching Frequencies to 300 kHz
- 10-MHz Error Amplifier
- Pin Programmable Undervoltage Lockout
- Low Startup Current
- 150 µA
- Soft Start Control
- Outputs Active Low During UVLO