NCP2820AFCT2G Equivalent & Substitute Parts

Part Overview

The NCP2820AFCT2G is a Class D audio power amplifier IC manufactured by onsemi, designed for mono audio applications with 2.65W output power at 4Ω load impedance. This device features differential inputs, depop functionality, and integrated short-circuit and thermal protection, operating across a 2.5V to 5.5V supply voltage range. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

NCP2820AFCT2G

onsemiIn Stock: 16045NCP2820AFCT2G Datasheet

Current PartRFQ

TS4962MEIJT

STMicroelectronicsIn Stock: 47889TS4962MEIJT Datasheet

DirectRFQ

LM4675TL/NOPB

Texas InstrumentsIn Stock: 1851LM4675TL/NOPB Datasheet

SimilarRFQ

LM4675TLX/NOPB

Texas InstrumentsIn Stock: 797LM4675TLX/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NCP2820AFCT2G is determined by strict alignment of electrical and mechanical parameters within the Class D mono amplifier category. The primary substitution criteria are:

Electrical Compatibility:

• Amplifier topology: Class D architecture
• Output configuration: Single-channel (mono) operation
• Output power: Minimum 2.65W at 4Ω load
• Supply voltage range: Must encompass or exceed 2.5V ~ 5.5V specification
• Protection features: Short-circuit and thermal protection required
• Input configuration: Differential inputs required

Mechanical Compatibility:

• Package type: 9-pin FlipChip or equivalent ball grid array (BGA) footprint
• Mounting: Surface mount technology
• Moisture sensitivity: MSL 1 classification

Regulatory & Compliance:

• REACH compliance status
• RoHS compliance status
• ECCN classification

The identified substitute parts meet these criteria while offering active product status and improved availability compared to the obsolete NCP2820AFCT2G.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TS4962MEIJT (STMicroelectronics)

The TS4962MEIJT is the direct functional equivalent offering the highest output power specification (2.8W at 4Ω) among available substitutes. This part maintains the 9-FlipChip package footprint compatibility with the original NCP2820AFCT2G, minimizing PCB layout modifications. The device is currently in active production status with substantial inventory availability (47,840 pcs), ensuring long-term supply chain stability. All critical protection features are present: depop, differential inputs, thermal protection, and shutdown functionality. The supply voltage range (2.4V ~ 5.5V) encompasses the original specification. RoHS3 compliance and REACH unaffected status align with modern regulatory requirements.

Secondary Substitutes: LM4675TL/NOPB and LM4675TLX/NOPB (Texas Instruments)

Both Texas Instruments LM4675 variants provide equivalent electrical performance with 2.7W output power at 4Ω and identical supply voltage range (2.4V ~ 5.5V). These parts include short-circuit protection and PWM functionality not present in the TS4962MEIJT. The LM4675TL/NOPB utilizes a 9-DSBGA package, while the LM4675TLX/NOPB specifies a larger 1.6x1.6mm footprint variant. Both are active products with RoHS3 compliance. Package footprint differences from the original 1.45x1.45mm FlipChip require PCB layout evaluation. Inventory levels are lower (1,798 and 784 pcs respectively) compared to the TS4962MEIJT.

Compliance Considerations:

All substitute parts maintain MSL 1 classification, REACH unaffected status, and ECCN EAR99 designation consistent with the original part. The TS4962MEIJT and both LM4675 variants carry explicit RoHS3 compliance certification, supporting regulatory requirements for new designs and manufacturing.

Frequently Asked Questions (FAQ)

Q: Can the TS4962MEIJT directly replace the NCP2820AFCT2G without PCB modifications?

A: The TS4962MEIJT maintains the 9-FlipChip package type and identical 1.45x1.45mm footprint dimensions, enabling direct PCB footprint compatibility. No layout modifications are required for package placement. Electrical parameter alignment (Class D topology, mono output, differential inputs, protection features) supports functional substitution without circuit redesign.

Q: What is the primary difference between the TS4962MEIJT and the LM4675 variants?

A: The TS4962MEIJT provides 2.8W output power at 4Ω load, exceeding both LM4675 variants (2.7W). The LM4675 series includes PWM and short-circuit protection features; the TS4962MEIJT includes standby mode instead of explicit short-circuit protection. Package footprints differ: TS4962MEIJT uses 9-FlipChip (1.45x1.45mm), while LM4675TL/NOPB uses 9-DSBGA and LM4675TLX/NOPB uses 9-DSBGA (1.6x1.6mm).

Q: Are all substitute parts suitable for designs requiring short-circuit protection?

A: The LM4675TL/NOPB and LM4675TLX/NOPB include explicit short-circuit protection. The TS4962MEIJT provides thermal protection but does not list short-circuit protection in its feature set. Design requirements for short-circuit protection should direct selection toward the LM4675 variants.

Q: What is the supply voltage compatibility range across all parts?

A: The NCP2820AFCT2G operates at 2.5V ~ 5.5V. All substitute parts (TS4962MEIJT, LM4675TL/NOPB, LM4675TLX/NOPB) operate at 2.4V ~ 5.5V, providing full compatibility with the original specification and extending lower voltage operation by 0.1V.

Q: Do all substitute parts meet current regulatory compliance standards?

A: The TS4962MEIJT, LM4675TL/NOPB, and LM4675TLX/NOPB all carry RoHS3 compliance certification and REACH unaffected status. All parts maintain MSL 1 classification and ECCN EAR99 designation. The original NCP2820AFCT2G does not specify RoHS status; substitutes provide explicit compliance documentation suitable for modern manufacturing and export requirements.

Q: Which substitute offers the best inventory availability?

A: The TS4962MEIJT provides the highest inventory level at 47,840 pcs in stock, compared to LM4675TL/NOPB (1,798 pcs) and LM4675TLX/NOPB (784 pcs). For applications requiring sustained component availability, the TS4962MEIJT is the preferred selection.

Q: Are operating temperature specifications provided for all parts?

A: The NCP2820AFCT2G does not specify operating temperature range. All substitute parts are rated for -40°C ~ 85°C (TA), providing explicit thermal operating boundaries suitable for industrial and consumer applications.