STMICROELECTRONICS HFDA80D-F2Y Audio Power Amplifier, 29W x 4 @ 4Ohm, 47.5W x 4 @ 2Ohm, D, 4.5V to 18V, LQFP-EP, 48 Pins

HFDA80D-F2Y is a 4-channel digital input class-D automotive audio amplifier with Hi?Fi audio quality, in-play diagnostics and 2MHz switching frequency. It is specifically designed for automotive applications in the latest BCD technology. The HFDA80D integrates advanced solutions for an excellent GSM noise immunity combined with the advantages of 2MHz switching PWM class-D output stages. This configuration allows outstanding audio performance while designing a compact and inexpensive application. The HFDA80D supports wide band applications up to 40kHz, with extremely low level of noise and low THD. Moreover, it features a broad diagnostics matrix, to support the most demanding OEM requirements in terms of speaker control and system robustness/reliability. The HFDA80D supports start/stop cranking down to 4.5V and is housed in a very compact and thin LQFP48L package, making it suitable for any level of automotive application.

• AEC-Q100 qualified, supply operating range from 4.5V to 18V
• EMI compliance evaluated according to CISPR25
• Class-D BTL outputs, integrated 112dB D/A conversion, battery load dump compatible (40V)
• Reduced size and cost of output LC thanks to 2MHz switching PWM
• I2S and TDM digital input (up to 16 channels TDM)
• Selectable input sample rate frequency (44.1/48/96/192kHz)
• Multiple load configurations: able to drive 4ohm and 2ohm speaker loads
• Immune to pop/tick noise at turn on/off, battery variations, during diagnostic
• Integrated short circuit protections, legacy (backup mode without I²C control)
• Ambient operating temperature range from -40 to 125°C