NCP1615A1DR2G

Overview

The NCP1615A1DR2G is a high-voltage power factor correction controller from onsemi, designed for driving PFC boost stages. It utilizes Current Controlled Frequency Foldback (CCFF) technology to optimize efficiency across the entire load range. The device integrates a high-voltage startup circuit and operates in Critical Conduction Mode (CRM). Key electrical parameters include an operating supply current of 12 mA and power dissipation of 465 mW. It supports a switching frequency of 26 kHz and is housed in a 14-pin SOIC package.

Feature Summary

• Implements Current Controlled Frequency Foldback (CCFF) method for optimized efficiency across varying loads
• Integrates a high-voltage startup circuit with under-voltage detection to eliminate external startup components
• Features valley switching to reduce MOSFET turn-on losses by activating at voltage minima
• Provides high drive capability with -500 mA source and +800 mA sink currents for efficient gate driving

Applications

• Personal computer power supplies
• Offline appliances
• LED drivers
• Flat panel televisions

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the specific suffix DR2G indicates tape and reel packaging. Check for End-of-Life status notifications as availability may be limited. Ensure compliance with RoHS directives and relevant environmental standards before integration into final products.

Selection Notes

Select this controller for designs requiring high efficiency in critical conduction mode applications. The integrated high-voltage startup simplifies bill of materials by removing external resistors. Consider the 14-pin SOIC package for thermal management and PCB layout constraints. Evaluate the CCFF feature benefits against specific load profiles to maximize system performance.

Part Context

This component belongs to the NCP1615 family of high-voltage PFC controllers. It shares core functionalities with variants like the NCP1615C5DR2G but differs in pinout and specific configuration options. The family is engineered for cost-effective, reliable power factor correction in consumer and industrial electronics.

Replacement Considerations

Direct substitutes within the same family include NCP1615ADR2G and NCP1615C5DR2G. Verify pin compatibility and parameter alignment before substitution. Note that some variants may have different lifecycle statuses, such as End-of-Life designations.