NCP1622DCCSNT1G

Overview

The NCP1622DCCSNT1G is an enhanced power factor correction controller from onsemi, designed for high-efficiency AC-DC conversion. It operates in a TSOP-6 surface-mount package and supports a switching frequency of 33 kHz. The device functions within a temperature range of -40°C to +125°C with a power dissipation rating of 550 mW. It utilizes valley-synchronized frequency foldback technology to optimize efficiency across varying load conditions.

Feature Summary

• Implements valley-synchronized frequency foldback (VSFF) to maximize energy efficiency at nominal and light loads while minimizing standby losses.
• Maintains consistent power factor performance even during frequency reduction by operating in critical conduction mode when inductor current exceeds programmed thresholds.
• Requires minimal external components due to its robust integrated functionality within a compact TSOP-6 package.

Applications

• High-efficiency power factor correction stages in AC-DC adapters
• Universal input power supplies requiring low standby power consumption
• Consumer electronics power management systems

Procurement Notes

Verify the specific suffix 'DCCSN' against the official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with the TSOP-6 package footprint. Confirm RoHS compliance status through the manufacturer's product compliance documentation before finalizing procurement.

Selection Notes

Select this component for designs prioritizing high efficiency across wide load ranges. The VSFF feature makes it suitable for applications where standby power is critical. Ensure the control loop can accommodate the variable switching frequency behavior inherent to the valley-synchronized operation mode.

Part Context

This part belongs to the NCP1622 series of power factor controllers. It shares core architectural features with variants like the NCP1622BECSNT1G but may differ in specific ordering suffixes that denote packaging or tape-and-reel specifications. It is categorized under PMIC and Power Factor Correction products.

Replacement Considerations

NCP1622BECSNT1G