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Product Detailed Parameters
- Description：IC AMP CLASS D STER 15W 48HVQFN
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：15W x 2 @ 8Ohm
- Voltage - Supply：8V ~ 20V
- Features：Depop, Digital Inputs, I2C, I2S, Mute, Short-Circuit and Thermal Protection, Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：48-HVQFN (7x7)
- Package / Case：48-VFQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TFA9812HN/N1,518 is a high-efficiency Bridge Tied Load (BTL) stereo Class-D audio amplifier with a digital I2S input. It operates on an 8 V to 20 V external power supply and features a 3.3 V analog/digital supply. The device integrates digital sound processing and audio power amplification in an HVQFN48 package with an exposed die paddle for enhanced thermal performance. It supports continuous time output power of 2 × 12 W at 15 V without an external heat sink.
Feature Summary
- Integrates digital parametric 10-band equalizer and volume control
- Supports I2C control mode and Legacy hardware pin control
- Includes programmable thermal foldback and comprehensive protection mechanisms
- Features internal Phase-Locked Loop (PLL) eliminating external clock components
Applications
- Digital-in Class-D audio amplifier applications
- CRT and flat-panel television sets
- Flat-panel monitors
- Multimedia systems
- Wireless speakers
Procurement Notes
Verify the specific ordering suffix N1,518 against official documentation to confirm packaging details. Confirm RoHS compliance status and REACH SVHC declarations prior to procurement. Ensure compatibility with existing design constraints regarding the HVQFN48 package dimensions and exposed die paddle thermal requirements.
Selection Notes
Select this component for designs requiring integrated DSP capabilities alongside power amplification. The device supports both I2C and Legacy modes, offering flexibility in system architecture. Consider the exposed die paddle for thermal management solutions. Verify that the application environment accommodates the specified voltage ranges and digital interface formats.
Part Context
This part belongs to the TFA9812 series of BTL stereo Class-D audio amplifiers manufactured by NXP Semiconductors. The series is designed for high-efficiency audio applications with digital inputs. The TFA9812HN variant specifically utilizes the HVQFN48 package to provide compact form factor and improved thermal dissipation characteristics compared to standard packages.
Replacement Considerations
Consult official NXP documentation for confirmed substitute part numbers. Verify functional equivalence regarding package type, pinout, and electrical specifications before substitution.
FAQ
How is the control mode selected?
The control mode is selected via the CSEL pin. A logic low selects Legacy mode (no I2C), while a logic high enables I2C bus control.
What protection mechanisms are included?
The device includes thermal foldback, over-temperature protection, over-current protection, overvoltage/undervoltage protection, window protection, lock protection, and frequency protection.
