HFA80A-F2T

4 channel analog input class-D automotive audio amplifier with Hi-Fi audio quality, advanced diagnostics and 2MHz switching frequency

Parameters

Supply Voltage Min Volt	4.5
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	125.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	LQFP 7X7 48L EXPOSED PAD UP

Description

The HFA80A is a new STMicroelectronics class-D audio amplifier, specifically designed for automotive applications in BCD9s technology.The HFA80A integrates advanced solutions for an excellent radiated noise immunity combined with the advantages of 2 MHz switching PWM class-D output stages. This...
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Key features

Key features
AEC-Q100 qualified Supply operating range: 4.5 V - 18 V EMI compliant to CISPR25 level V Class-D BTL outputs Battery load dump compatible (40 V) Reduced size and cost of output LC thanks to 2 MHz switching PWM Extended audio band support Multiple load configurations: Able to drive 4 Ω and 2 Ω speaker loads Both speaker and line driver options MOSFET power outputs allowing high output power capability: Typ 4 x 28.5 W/4 Ω at 14.4 V, 1 kHz, THD = 10% Typ 4 x 23 W/4 Ω at 14.4 V, 1 kHz, THD = 1% Typ 4 x 49 W/2 Ω at 14.4 V, 1 kHz, THD = 10% Typ 4 x 39 W/2 Ω at 14.4 V, 1 kHz, THD = 1% Audio performances at 4 Ω, 14.4 V, 1 kHz: THD 0.015% typ at 1 W, 1 kHz on 4 Ω loads Output noise 52 typ μV at 26 dB gain Crosstalk 86 dB typ at 1 W, 1 kHz on 4 Ω loads PSRR 80 dB typ at 1 W, 1 kHz on 4 Ω loads Fast turn-on and very low latency for high-speed audio processing applications I²C full configurability with channel independent mute/play/gain selection/diagnostic 4 I²C addresses I²C bus driving: fast I²C (1Mhz clock) option Output PWM clock spread spectrum Full diagnostic matrix with info available both on I²C and CD/DIAG pin: Independent by-channel DC and AC load detection diagnostic with selectable threshold Startup diagnostic for shorts to VCC/GND Overcurrent protection with configurable threshold (2 selectable) Input voltage DC offset detector Free-running output current offset detector Thermal protection and thermal warning (4 thermal warnings) DAM (digital admittance meter) Synchronization input/output pin Immune to pop/tick noise at turn on/off, battery variations, during diagnostic Legacy (backup mode without I²C control) ESD integrated protections (2 kV HBM, 500 V/750 V corner CDM) LQFP48L exposed pad up package

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Quantity	$ per unit	Savings
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500 +	Contact sales

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Parameters

Supply Voltage Min Volt	4.5
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	125.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	LQFP 7X7 48L EXPOSED PAD UP

Description

Key features

Key features
AEC-Q100 qualified Supply operating range: 4.5 V - 18 V EMI compliant to CISPR25 level V Class-D BTL outputs Battery load dump compatible (40 V) Reduced size and cost of output LC thanks to 2 MHz switching PWM Extended audio band support Multiple load configurations: Able to drive 4 Ω and 2 Ω speaker loads Both speaker and line driver options MOSFET power outputs allowing high output power capability: Typ 4 x 28.5 W/4 Ω at 14.4 V, 1 kHz, THD = 10% Typ 4 x 23 W/4 Ω at 14.4 V, 1 kHz, THD = 1% Typ 4 x 49 W/2 Ω at 14.4 V, 1 kHz, THD = 10% Typ 4 x 39 W/2 Ω at 14.4 V, 1 kHz, THD = 1% Audio performances at 4 Ω, 14.4 V, 1 kHz: THD 0.015% typ at 1 W, 1 kHz on 4 Ω loads Output noise 52 typ μV at 26 dB gain Crosstalk 86 dB typ at 1 W, 1 kHz on 4 Ω loads PSRR 80 dB typ at 1 W, 1 kHz on 4 Ω loads Fast turn-on and very low latency for high-speed audio processing applications I²C full configurability with channel independent mute/play/gain selection/diagnostic 4 I²C addresses I²C bus driving: fast I²C (1Mhz clock) option Output PWM clock spread spectrum Full diagnostic matrix with info available both on I²C and CD/DIAG pin: Independent by-channel DC and AC load detection diagnostic with selectable threshold Startup diagnostic for shorts to VCC/GND Overcurrent protection with configurable threshold (2 selectable) Input voltage DC offset detector Free-running output current offset detector Thermal protection and thermal warning (4 thermal warnings) DAM (digital admittance meter) Synchronization input/output pin Immune to pop/tick noise at turn on/off, battery variations, during diagnostic Legacy (backup mode without I²C control) ESD integrated protections (2 kV HBM, 500 V/750 V corner CDM) LQFP48L exposed pad up package