UC28025 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. Targeted for cost-effective solutions with minimal external ponents.
UC28025 Key Features
- 1 Peak Current Mode, Average Current Mode, or Voltage Mode (With FeedForward) 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
- Wide Bandwidth Error Amplifier
- Fully Latched Logic With Double Pulse
- Pulse-by-Pulse Current Limiting
- Programmable Maximum Duty Cycle Control
- Undervoltage Lockout With Hysteresis