产品概述
描述
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 configuration allows outstanding audio performances while designing a compact and inexpensive application.
The HFA80A supports wide band applications with extremely low level of noise and low THD. Moreover, it features a broad diagnostics matrix able to support the most demanding OEM requirements in terms of speaker control and system robustness/reliability. The HFA80A supports start/stop cranking down to 4.5 V and is housed in a very compact and thin LQFP 7x7 package, making it suitable for any level of automotive application.
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所有功能
- 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
特别推荐
EDA符号、封装和3D模型
意法半导体 - HFA80A
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 包 | 等级规格 | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | 材料声明** |
|---|---|---|---|---|---|---|---|
| HFA80A-F2T | 批量生产 | LQFP 7X7 48L EXPOSED PAD UP | 汽车应用 | Ecopack2 | - | - | |
| HFA80A-F2Y | 批量生产 | LQFP 7X7 48L EXPOSED PAD UP | 汽车应用 | Ecopack2 | - | - |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| HFA80A-F2T | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| HFA80A-F2Y | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
HFA80A-F2T 批量生产
HFA80A-F2Y 批量生产