UC28025 Datasheet PDF

●DESCRIPTION

●The UC28023 and UC28025 are fixed-frequency PWM controllers optimized for high-frequency switched-mode power supply applications. The UC28023 is a single output PWM for single-ended

●topologies while the UC28025 offers dual alternating outputs for double-ended and full bridge topologies.

●FEATURES

●Peak Current Mode, Average Current Mode, or Voltage Mode (with Feed-Forward) Control Methods

●Practical Operation Up to 1 MHz

●50-ns Propagation Delay to Output

●±1.5-A Peak Totem Pole Outputs

●9-V to 30-V Nominal Operational Voltage Range

●Wide Bandwidth Error Amplifier

●Fully Latched Logic with Double Pulse Suppression

●Pulse-by-Pulse Current Limiting

●Programmable Maximum Duty Cycle Control

●Under--Voltage Lockout with Hysteresis

●Trimmed 5.1-V Reference with UVLO

●Same Functionality as UC3823 and UC3825