NCP2890AFCT2 Equivalent & Substitute Parts

Part Overview

The NCP2890AFCT2 is a Class AB audio amplifier integrated circuit manufactured by onsemi, designed for mono audio applications with 1.08W output power at 8Ω load impedance. This device features differential inputs, depop functionality, and integrated short-circuit and thermal protection with shutdown capability. The part is packaged in a 9-FlipChip (1.45x1.45mm) surface mount configuration.

The NCP2890AFCT2 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this amplifier IC.

Key Parameters

Parameter	Value
Amplifier Type	Class AB
Output Configuration	1-Channel (Mono)
Max Output Power @ 8Ω	1.08W
Supply Voltage Range	2.2V ~ 5.5V
Operating Temperature Range	-40°C ~ 85°C (TA)
Package Type	9-FlipChip (1.45x1.45mm)
Mounting Type	Surface Mount
Key Features	Depop, Differential Inputs, Short-Circuit Protection, Thermal Protection, Shutdown

Substitute Part Grouping Explanation

Substitution of the NCP2890AFCT2 is determined by strict equivalence across the following critical parameters:

Amplifier Classification: Class AB topology
Channel Configuration: Single-channel mono output
Output Power Specification: 1.08W at 8Ω load
Supply Voltage Compatibility: 2.2V to 5.5V operating range
Thermal Operating Window: -40°C to 85°C ambient temperature
Package Footprint: 9-FlipChip (1.45x1.45mm) surface mount
Functional Feature Set: Depop, differential inputs, short-circuit protection, thermal protection, and shutdown capability

The substitute part NCP2890AFCT2G maintains identical electrical specifications and mechanical packaging, ensuring direct functional equivalence for circuit-level replacement.

Parameter Comparison

Parameter	NCP2890AFCT2 (Main)	NCP2890AFCT2G (Substitute)
Manufacturer	onsemi	onsemi
Category	Linear, Amplifiers	Linear, Amplifiers
Amplifier Type	Class AB	Class AB
Output Type	1-Channel (Mono)	1-Channel (Mono)
Max Output Power @ 8Ω	1.08W x 1	1.08W x 1
Supply Voltage Range	2.2V ~ 5.5V	2.2V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Features	Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown	Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
Package Type	9-WFBGA, FCBGA	9-WFBGA, FCBGA
Mounting Type	Surface Mount	Surface Mount
Base Product Number	NCP2890	NCP2890
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS Code	8542.33.0001	8542.33.0001

Engineering Selection Recommendations

The NCP2890AFCT2G is the direct substitute for the obsolete NCP2890AFCT2. Both parts share identical electrical performance specifications, thermal characteristics, and mechanical packaging requirements. The primary distinction is product lifecycle status and regulatory compliance.

NCP2890AFCT2G Selection Advantages:

Active product status ensures ongoing availability and manufacturing support
ROHS3 compliance satisfies current environmental and regulatory requirements
Identical electrical and thermal performance eliminates circuit redesign requirements
Same 9-FlipChip package footprint permits direct PCB-level replacement without layout modification

For new designs or production transitions, the NCP2890AFCT2G is the appropriate selection. For legacy system support requiring the original NCP2890AFCT2, the substitute provides functional and mechanical equivalence while offering improved supply chain continuity and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the NCP2890AFCT2G replace the NCP2890AFCT2 in existing designs without circuit modification?

A: Yes. The NCP2890AFCT2G maintains identical electrical specifications, output power rating, supply voltage range, operating temperature range, and feature set. The 9-FlipChip package footprint is identical, permitting direct component substitution without circuit redesign.

Q: What is the primary reason for substituting the NCP2890AFCT2?

A: The NCP2890AFCT2 carries obsolete product status. The NCP2890AFCT2G is the active equivalent, ensuring long-term supply availability and manufacturing support.

Q: Are there differences in RoHS compliance between these parts?

A: Yes. The NCP2890AFCT2 is RoHS non-compliant, while the NCP2890AFCT2G is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the NCP2890AFCT2G is the required selection.

Q: Do both parts have identical moisture sensitivity specifications?

A: Yes. Both the NCP2890AFCT2 and NCP2890AFCT2G carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Is the 9-FlipChip package footprint identical between both parts?

A: Yes. Both parts use the 9-FlipChip (1.45x1.45mm) package with 9-WFBGA and FCBGA designations. PCB layout and reflow profiles remain unchanged.

Q: What is the output power specification for both amplifier ICs?

A: Both the NCP2890AFCT2 and NCP2890AFCT2G deliver 1.08W maximum output power at 8Ω load impedance in mono (single-channel) configuration.

Q: Are the supply voltage requirements identical?

A: Yes. Both parts operate across the 2.2V to 5.5V supply voltage range, supporting single-cell lithium-ion battery applications through multi-cell configurations.

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