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HFA80A-F2T

HFA80A-F2T

Active

HFA80A-F2Y

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

Supply Voltage Min Volt4.5
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTray
RoHs compliantEcopack2
GradeAutomotive
Package NameLQFP 7X7 48L EXPOSED PAD UP

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
  • 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
In stock
Quantity $ per unit Savings
1-9$8.100%
10-24$6.8116%
25-99$6.0425%
100-249$5.2935%
250-499$4.7841%
500$4.5544%
Contact sales
$8.10
$8.09
Supply Voltage Min Volt4.5
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTray
RoHs compliantEcopack2
GradeAutomotive
Package NameLQFP 7X7 48L EXPOSED PAD UP

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...
Read More

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