AOZ7111AI PFC Controller IC - Equivalent & Substitute Parts

Part Overview

The AOZ7111AI is an active Power Factor Correction (PFC) controller IC manufactured by Alpha & Omega Semiconductor Inc., designed for critical conduction mode operation at 350kHz switching frequency. This device is classified as a Power Management Integrated Circuit (PMIC) and is currently in active product status with 9930 units in stock. The AOZ7111AI operates within a supply voltage range of 10.5V to 18V and supports operating temperatures from -40°C to 125°C in an 8-SOIC surface mount package.

Equivalent and substitute parts are identified when alternative components meet the same functional requirements, electrical specifications, and mechanical compatibility criteria. Substitute components must maintain compatibility with the original application's electrical parameters, thermal operating range, and physical packaging constraints.

Substiute Parts

AOZ7111AI

Alpha & Omega Semiconductor Inc.In Stock: 10012AOZ7111AI Datasheet

Current PartRFQ

NCP1608BDR2G

onsemiIn Stock: 222658NCP1608BDR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AOZ7111AI are identified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Substitution Criteria:

• Operating mode: Critical Conduction (CRM)
• Package type: 8-SOIC with identical physical dimensions (0.154", 3.90mm Width)
• Supply voltage range: Minimum 10.5V, maximum 18V
• Operating temperature range: -40°C to 125°C
• Surface mount configuration
• RoHS3 compliance
• REACH unaffected status

The NCP1608BDR2G from onsemi meets these substitution criteria as a PFC controller IC operating in critical conduction mode within a compatible 8-SOIC package and overlapping electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the AOZ7111AI and NCP1608BDR2G are active products with ROHS3 compliance and REACH unaffected status, making them suitable for current design implementations and regulatory compliance requirements.

The AOZ7111AI provides a specified switching frequency of 350kHz, which is a defined design parameter for applications requiring this specific operational frequency.

The NCP1608BDR2G offers an extended supply voltage range (10.2V to 20V) compared to the AOZ7111AI (10.5V to 18V), providing broader input voltage tolerance. Both devices share identical operating temperature ranges, package dimensions, and moisture sensitivity classifications.

Selection between these components should be based on application-specific requirements regarding switching frequency specification, input voltage range requirements, and component availability.

Frequently Asked Questions (FAQ)

Q: Can the NCP1608BDR2G directly replace the AOZ7111AI in existing designs?

A: Both devices are 8-SOIC packaged PFC controller ICs operating in critical conduction mode with identical physical dimensions and thermal operating ranges. Direct pin-level compatibility requires verification against specific application schematics and PCB layouts. The extended supply voltage range of the NCP1608BDR2G (10.2V to 20V versus 10.5V to 18V) provides additional input voltage tolerance.

Q: What are the key differences between these two PFC controller ICs?

A: The primary differences are manufacturer origin (Alpha & Omega Semiconductor Inc. versus onsemi) and supply voltage range specifications. The AOZ7111AI specifies a 350kHz switching frequency, while the NCP1608BDR2G does not provide this parameter in the available data. Both devices maintain identical operating temperature ranges, package configurations, and regulatory compliance status.

Q: Are both parts RoHS and REACH compliant?

A: Both the AOZ7111AI and NCP1608BDR2G are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the 8-SOIC package specification?

A: The 8-SOIC (Small Outline Integrated Circuit) package with 0.154" width and 3.90mm physical dimensions is a standard surface mount configuration. Both devices utilize this identical package, ensuring mechanical compatibility with existing PCB designs and assembly processes.

Q: Does moisture sensitivity affect component handling?

A: Both devices carry an MSL (Moisture Sensitivity Level) rating of 1 (Unlimited), indicating minimal moisture sensitivity. This classification allows for standard handling and storage procedures without specialized moisture control requirements during manufacturing and assembly operations.