What are the key operating modes?

It uses Current Controlled Frequency Fold-back (CCFF) and operates in Critical Conduction Mode (CrM) at higher loads, transitioning to lower frequencies at light loads.

What safety features are included?

It includes Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), Brown-Out detection, and Thermal Shutdown.

What is the supply voltage range?

The VCC operating range is from 9.5 V to 35 V.

What is the pinout of NCP1611ADR2G?

Use the NCP1611ADR2G datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about NCP1611ADR2G pinout to locate pins, power rails, and interface signals before layout.

NCP1611ADR2G Datasheet, Specs, Alternatives & ECAD | onsemi

AI summary

The NCP1611ADR2G is a high-efficiency PFC controller from onsemi, optimized for boost stages using CCFF and CrM modes to maintain near-unity power factor across wide load ranges.

Best for

PC and TV power supplies
LED drivers
Dimmable light ballasts

Avoid if

Applications requiring fixed-frequency PWM control

Check before use

Ensure the A-version start-up threshold (10.5 V) meets your power supply design requirements.

Key specifications

Control Mode: CCFF / CrM
VCC Range: 9.5 V - 35 V
Package: SOIC-8

Compliance & Environment

RoHS: ROHS3 Compliant
REACH: REACH Unaffected
MSL: 2 (1 Year)
ECCN: EAR99
HTSUS: 8542.39.0001

Application

Power SuppliesLED Lighting

Datasheet

ON-Semiconductor-company-79.pdf

800 KB

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CAD Models

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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is an enhanced, high-efficiency Power Factor Controller (PFC) IC designed for boost power stages.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the NCP1611ADR2G?+×

What are the key operating modes?+×

What safety features are included?+×

What is the supply voltage range?+×

What is the pinout of NCP1611ADR2G?+×