Description

The NCP1028P065G is an AC DC Converter model designed for offline switchers. It offers a new solution for output power levels ranging from a few watts up to 15W in a universal mains flyback application. The circuit includes a power MOSFET and a startup current source connected directly to the bulk capacitor. It features an adjustable brown-out circuitry to prevent issues in low input voltage conditions. The NCP1028P065G operates in current-mode with adjustable ramp compensation, providing superior performance in universal mains applications. It also has an Over Power Protection pin to compensate for internal delays in high input voltage conditions and optimize the maximum output current capability.

Specifications and features

The NCP1028P065G has the following specifications and features: - Built-in 700V MOSFET with Typical RDS(on) of 5.8 Ω, TJ = 25°C - Current-Mode Fixed Frequency Operation: 65 kHz and 100 kHz - Fixed Peak Current of 800 mA - Skip-Cycle Operation at Low Peak Currents - Internal Current Source for Clean and Lossless Startup Sequence - Auto-Recovery Output Short Circuit Protection with Timer-Based Detection - Programmable Brown-Out Input for Low Input Voltage Detection - Programmable Over Power Protection - Input to Permanently Latchoff the Part - Internal Frequency Jittering for Improved EMI Signature - Extended Duty Cycle Operation to 80% Typical - No-Load Input Standby Power of 85 mW @ 265 Vac - 500 mW Loaded, Input Power of 715 mW @ 230 Vac - Pb-Free Devices

Application Scenarios

The NCP1028P065G is typically used in the following applications: - Medium Power AC-DC Adapters for Chargers - Auxiliary/Standby Power Supplies for ATX and TVS Power Supplies

Comparison

- Proprietary high-voltage technology for efficient power generation - Adjustable brown-out circuitry for low input voltage conditions - Current-mode operation with adjustable ramp compensation for superior performance - Over Power Protection pin for optimizing maximum output current capability - Auto-recovery output short circuit protection for safe operation - None mentioned in the provided information.