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Product Detailed Parameters
- Description：IC AMP D MONO 2.65W 9FLIPCHIP
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Class D
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：2.65W x 1 @ 4Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：9-FlipChip (1.45x1.45)
- Package / Case：9-WFBGA, FCBGA
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The NCP2820FCT2G is a mono Class-D audio power amplifier in a 9-pin flip-chip CSP package. It delivers up to 2.65 W continuous average power to a 4.0 Ω load from a 5.0 V supply, or 1.4 W to an 8.0 Ω load with less than 1% THD+N. Operating on a 2.5 V to 5.5 V supply, it features over 90% efficiency and a typical quiescent current of 2.5 mA. The device utilizes PWM modulation for low noise and includes pop-and-click protection.
Feature Summary
- Filterless capability eliminates the need for external output filters when using inductive transducers.
- Fully differential design removes the requirement for input coupling capacitors.
- Advanced gain technique ensures ultra-fast turn-on and turn-off times to prevent audible noise.
- Integrated thermal shutdown and current breaker circuitry protect against overheating and short circuits.
Applications
- Cellular handsets
- Portable electronic devices
- PDAs and smartphones
- Portable computers
Procurement Notes
Verify the specific suffix 'FCT2G' corresponds to the 9-pin flip-chip CSP package (Case 499AL) as defined in the ordering information. Confirm that the component meets the required environmental standards and lead-free specifications before integration into the final assembly process.
Selection Notes
Select this component for applications requiring high efficiency and minimal board space due to its filterless operation. Ensure the power supply voltage remains within the 2.5 V to 5.5 V range. Consider the 9 ms turn-on time for standard versions if rapid startup is critical, as the NCP2820A variant offers faster switching.
Part Context
This part belongs to the NCP2820 series of cost-effective Class-D amplifiers. It shares core architecture with variants like the NCP2820AFCT2G and NCP2820MUTBG, differing primarily in packaging options such as UDFN8 or automotive-grade prefixes. The series is designed for battery-powered portable electronics.
Replacement Considerations
Direct substitutes include NCP2820AFCT2G and NCP2820FCT1G. Verify pin compatibility and thermal characteristics when replacing with other packages like the UDFN8 version (NCP2820MUTBG).
FAQ
Does the NCP2820 require an external output filter?
No, the device is designed for filterless operation when driving inductive loudspeakers, relying on the speaker's parasitic elements to filter high-frequency signals.
How does the device handle 'pop and click' noises during startup?
It employs an advanced rising and falling gain technique that establishes the output DC level slowly, preventing sudden power transitions that cause audible artifacts.
