HFDA801A-VYY

4x80W digital input class-D automotive audio amplifier with Hi-Fi audio quality, advanced diagnostics, 2MHz switching frequency and High Resolution Bandwidth

Parameters

Supply Voltage Min Volt	4.5
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	105.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tray
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	LQFP

Description

HFDA801A is the new ST class-D audio amplifier, specifically designed for automotive applications in the latest BCD technology. The HFDA801A integrates a 24-bit 120 dB DAC conversion, and features 2 MHz switching PWM class D output stage. This configuration enables the design of a compact and...
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Key features

Key features
AEC-Q100 qualified Integrated 120 dB D/A conversion I²S and TDM digital input (up to 16 CH TDM) Selectable input sample rate frequency (44.1/48/96/192 kHz) Wide supply operating range: 4.5 V - 25 V (5 V min at turn-on transition) PWM 2 MHz switching PWM: Reduced size and cost of output LC High resolution bandwidth support: Up to 40 kHz (I²S 96 kHz) with attenuation [0 dB, -2 dB] Up to 80 kHz (I²S 192 kHz) with attenuation [0 dB, -2 dB] 4 I²C addresses 4 Ω, 2 Ω, 1 Ω driving with output channels parallelization MOSFET power outputs allowing high output power capability: Typ 4 x 30 W/4 Ω @ 14.4 V, 1 kHz THD = 10% Typ 4 x 25 W/4 Ω @ 14.4 V, 1 kHz THD = 1% Typ 4 x 50 W/2 Ω @ 14.4 V 1 kHz THD = 10 % Typ 4 x 80 W/4 Ω @ 25 V, 1 kHz THD = 10 % I²C full configurability and diagnostic: 4 x Thermal warning and average junction temperature measurement on I²C (8 bits) AC and DC diagnostic (independent of channel) OCP protection scheme configurable (4 x OCP limit selectable) Mute time configuration DIM (digital impedance meter) Feedback after filter configuration Capability to run complete diagnostic in play: Short to GND/VCC DC offset detector Extremely Low noise: 13 µV A-weighted; 20 kHz (high gain) typ Very low THD: 0.02% at 1 W 1 kHz on 4 and 2 Ω loads typ 0.08% 20-20 kHz (full audio band) on 4 and 2 Ω loads (1 W) CD/Diag pin (3 selectable CD thresholds) Synchronization output pin (only with TDM input stream, on I²Sdata2) Channel independent Mute/Play/Gain selection/Diagnostic Real Time current monitor Open Load in play Battery load dump compatible (40 V) Immune to pop/tick noise at turn on/off, battery variations (inside the operative range), during diagnostic EMI compliance evaluated according to CISPR25 Legacy (no I²C mode) Integrated short circuit protections ESD integrated protections (2 kV HBM, 500 V/750 V corner CDM) LQFP64 exposed pad up package

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Parameters

Supply Voltage Min Volt	4.5
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	105.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tray
RoHs compliant	Ecopack2
Grade	Automotive
Package Name	LQFP

Description

Key features

Key features
AEC-Q100 qualified Integrated 120 dB D/A conversion I²S and TDM digital input (up to 16 CH TDM) Selectable input sample rate frequency (44.1/48/96/192 kHz) Wide supply operating range: 4.5 V - 25 V (5 V min at turn-on transition) PWM 2 MHz switching PWM: Reduced size and cost of output LC High resolution bandwidth support: Up to 40 kHz (I²S 96 kHz) with attenuation [0 dB, -2 dB] Up to 80 kHz (I²S 192 kHz) with attenuation [0 dB, -2 dB] 4 I²C addresses 4 Ω, 2 Ω, 1 Ω driving with output channels parallelization MOSFET power outputs allowing high output power capability: Typ 4 x 30 W/4 Ω @ 14.4 V, 1 kHz THD = 10% Typ 4 x 25 W/4 Ω @ 14.4 V, 1 kHz THD = 1% Typ 4 x 50 W/2 Ω @ 14.4 V 1 kHz THD = 10 % Typ 4 x 80 W/4 Ω @ 25 V, 1 kHz THD = 10 % I²C full configurability and diagnostic: 4 x Thermal warning and average junction temperature measurement on I²C (8 bits) AC and DC diagnostic (independent of channel) OCP protection scheme configurable (4 x OCP limit selectable) Mute time configuration DIM (digital impedance meter) Feedback after filter configuration Capability to run complete diagnostic in play: Short to GND/VCC DC offset detector Extremely Low noise: 13 µV A-weighted; 20 kHz (high gain) typ Very low THD: 0.02% at 1 W 1 kHz on 4 and 2 Ω loads typ 0.08% 20-20 kHz (full audio band) on 4 and 2 Ω loads (1 W) CD/Diag pin (3 selectable CD thresholds) Synchronization output pin (only with TDM input stream, on I²Sdata2) Channel independent Mute/Play/Gain selection/Diagnostic Real Time current monitor Open Load in play Battery load dump compatible (40 V) Immune to pop/tick noise at turn on/off, battery variations (inside the operative range), during diagnostic EMI compliance evaluated according to CISPR25 Legacy (no I²C mode) Integrated short circuit protections ESD integrated protections (2 kV HBM, 500 V/750 V corner CDM) LQFP64 exposed pad up package