UCC28089 Datasheet (Texas Instruments) - PRIMARY-SIDE PUSH-PULL OSCILLATOR

UCC28089, PRIMARY-SIDE PUSH-PULL OSCILLATOR

The UCC28089 is a versatile BiCMOS controller for dc-to-dc or off-line fixed-frequency switching power supplies.

The UCC28089 has dual alternating output stages in dual-alternating push-pull configuration.

Both outputs switch at half the oscillator frequency using a toggle flip-flop and duty cycle i

UCC28089 Features

* D Push-Pull Oscillator With Programmable Deadtime D High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability D Can be Used in Push-Pull, Half-Bridge, or Full-Bridge Topologies D Oscillator Synchronization Output D Low Start-Up Current of 130