Product overview
Description
The HFDA90D is a new STMicroelectronics class-D audio amplifier, specifically designed for automotive applications in the latest BCD technology.
The HFDA90D integrates advanced solutions for an excellent GSM noise immunity combined with the advantages of 2 MHz switching PWM class-D output stages. This configuration allows outstanding audio performance while designing a compact and inexpensive application.
The HFDA90D supports wide band applications up to 40 kHz, 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 HFDA90D supports start/stop cranking down to 4.5 V and is housed in a very compact and thin LQFP48L 7x7x1.4 mm package, making it suitable for any level of automotive application.
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All features
- AEC-Q100 qualified
- Supply operating range: 4.5 V–18 V
- EMI compliance evaluated according to CISPR25
- Class-D BTL outputs
- Integrated 112 dB D/A conversion
- Battery load dump compatible (40 V)
- Reduced size and cost of output LC thanks to 2 MHz switching PWM
- I2S and TDM digital input (up to 16 channels TDM)
- Selectable input sample rate frequency (44.1/48/96/192 kHz)
- Multiple load configurations:
- Able to drive 4 Ω and 2 Ω speaker loads
- MOSFET power outputs allowing high output power capability:
- Typ. 4x29 W on 4 Ω at 14.4 V, 1 kHz, THD = 10%
- Typ. 4x22.5 W on 4 Ω at 14.4 V, 1 kHz, THD = 1%
- Typ. 4x47.5 W on 2 Ω at 14.4 V, 1 kHz, THD = 10%
- Typ. 4x35.5 W on 2 Ω at 14.4 V, 1 kHz, THD = 1%
- Outstanding audio performances
- THD 0.015% typ. at 1 W 1 kHz on 4 Ω loads
- Output noise 27 μV typ. A-weighted
- Crosstalk 100 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
- Very low latency for noise cancelling application
- I²C full configurability with channel independent mute/play/gain selection/diagnostic
- 4 I²C addresses
- Full diagnostic matrix with info available both on I²C and CD/DIAG pin:
- 4 thermal warnings
- Independent by-channel DC and AC load detection diagnostic with selectable threshold
- Startup diagnostic for shorts to VCC/GND
- OCP protection with configurable OCP limit (2 selectable)
- Input offset detector
- DAM (digital admittance meter)
- Free-running diagnostics
Output current offset detector DC/AC diagnostic Including open-load in play detection DAM
- Load current monitor
- Synchronization output pin
- Immune to pop/tick noise at turn on/off, battery variations, during diagnostic
- Legacy (backup mode without I²C control)
- Integrated short circuit protections
- ESD integrated protections (2 kV HBM, 500 V / 750 V corner CDM)
- LQFP48L exposed pad up package
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - HFDA90D
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3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| HFDA90D-F2T | Active | LQFP 7X7 48L EXPOSED PAD UP | Automotive | Ecopack2 | - | - | |
| HFDA90D-F2Y | Active | LQFP 7X7 48L EXPOSED PAD UP | Automotive | Ecopack2 | - | - |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| HFDA90D-F2T | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| HFDA90D-F2Y | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
HFDA90D-F2T Active
HFDA90D-F2Y Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors