FDA9014 x 50 W class-D digital input power amplifier with load current monitoring and low voltage operation | Audio Amplifiers | 1 | Active | FDA901 is a new BCD technology Quad Bridge class D amplifier, specially intended for car radio automotive applications.
Thanks to the technology used, it is possible to integrate a high performance D/A converter together with powerful MOSFET outputs in class D, to get an outstanding efficiency compared to the standard class AB.
The integrated D/A converter allows to reach outstanding performances (115 dB S/N ratio with 110 dB of dynamic range). The feedback loop includes the output L-C low-pass filter, allowing superior frequency response linearity and lower distortion independently from the inductor and capacitor quality.
FDA901 is fully configurable through I2C bus, moreover it includes not only the most complete load diagnostic matrix but also a unique real time load current acquisition on I2C and I2S data lines, enabling sophisticated speaker monitoring functions.
Thanks to the solutions implemented to contain EMI emissions, the device is intended to be used in the standard single DIN car-radio box together with the tuner.
Moreover the FDA901 is able to work with power supply as low as 6 V, thus supporting the most recent low voltage ('start-stop') car-makers specification. |
FDA9031 x 45 W class D digital input automotive power amplifier with ILoad current monitoring, wide voltage operation range for car audio and telematic | Amplifiers | 4 | Active | The AEKD-STEREOAVAS is an AutoDevKit acoustic vehicle alerting system (AVAS) demo.
It consists of an AEK-AUD-C1D9031 compact AVAS board, an AEK-MCU-C4MLIT1 domain zone controller, and two AEK-LCD-DT028V1 display expansion boards, plus two loudspeakers and a switching button.
The AEK-AUD-C1D9031 communicates with the AEK-MCU-C4MLIT1 via CAN protocol, exchanging commands like start/stop to simulate alerting sounds used in e-vehicles.
The sound is reproduced by the AEK-AUD-C1D9031 ECU through a pair of integrated class D audio amps connected to the loudspeakers.
Two AEK-LCD-DT028V1 boards with resistive touch allow the user to interact with the demo. The first screen shows a graphic simulation of the electric motor rpms, while the second allows starting/stopping the demo and regulating the sound volume and the engine rpms.
An important system safety feature reproposed in our demo consists in the open-load detection in play or mute state.
Toggling the "disconnect speaker" switch, the FDA903D embedded in the AEK-AUD-C1D9031 detects the open load in play or in mute and the blue LED lights up.
This open-load detection depends on the sound amplitude. If the blue LED does not light up, turn the volume up through the dedicated touch screen button.
Switching on the hardware mute button on the AEK-AUD-C1D9031 board, an orange LED (D7) turns on to indicate that the system is in the hardware mute state. |
FDA903Q1 Channel class D digital input automotive power amplifier with diagnostics, wide voltage operation range for car audio and telematics | Amplifiers | 1 | Active | The FDA903Q is a single bridge class D amplifier, designed in the most advanced BCD technology, intended for any automotive audio application (car radio, telematics and e-call, noise and tone generators, etc).
The FDA903Q integrates a high performance D/A converter together with powerful MOSFET outputs in class D, so it is very compact and powerful, moreover it reaches outstanding efficiency performances (90%).
It has a very wide operating range: it can be operated both with standard car battery levels (5.5-18 V operating, compatible to load dump pulse) and with external step-down generated voltages or emergency battery (since it is compatible to minimum 3.3 V operative).
The feedback loop includes the output L-C low-pass filter, allowing superior frequency response linearity and lower distortion.
FDA903Q is configurable through I2C bus interface and integrates a complete diagnostics array specially intended for automotive applications including innovative open load and DC offset detection in play mode.
Thanks to the solutions implemented to solve the EMI problems, the device is intended to be used in the standard single DIN car-radio box together with the tuner.
Moreover, FDA903Q features a configurable amplitude limiter function, and can be optionally operated under no I2C mode ('legacy mode'). |
FDA903S1 x 10 W class D digital input automotive power amplifier with diagnostics, wide voltage operation range for car audio and telematics | Integrated Circuits (ICs) | 1 | Active | The FDA903S is the new ST single channel class-D audio amplifier, specifically designed for automotive applications. The FDA903S integrates a 24-bit, 100 dB DAC conversion and PWM class-D output stage with feedback before LC filter. This configuration enables the design of a compact and inexpensive application.
The FDA903S supports I2S and TDM digital bit stream up to 16CH with several sampling frequencies from 8 kHz up to 96 kHz. FDA903S embeds a complete diagnostic in play, including real-time load-current monitoring and digital admittance meter, to support the most demanding OEM requirements in terms of speaker control and system robustness/ reliability.
The FDA903S supports start stop cranking down to 3.3 V and it is available in a very compact and thin QFN 5x5 package. Thus the FDA903S is suitable for any level of automotive application especially e-Call and Telematics. |
FERD15S5050 V, 15 A Field-Effect Rectifier Diode (FERD) | Rectifiers | 1 | Active | This single rectifier is based on a patented technology, enabling to achieve the best in class VF/IRtrade-off for a given silicon surface.
Packaged in PowerFLAT™ 5x6, the FERD15S50 is optimized for use in rectification and freewheeling operations in switch mode power supplies. |
| Single Diodes | 1 | Active | |
FERD2050 V, 20 A Power FLAT Ultra-Low Vf Field-Effect Rectifier Diode (FERD) | Diode Arrays | 6 | Active | The device is based on a proprietary technology that achieves the best in class VF/IRtrade-off for a given silicon surface.
This 100 V rectifier has been optimized for use in confined casing applications where both efficiency and thermal performance matter.
With a lower dependency of leakage current (IR) and forward voltage (VF) in function of temperature, the thermal runaway risk is reduced. Therefore, it can advantageously replace 100 V Schottky diodes. |
| Discrete Semiconductor Products | 1 | Active | |
FERD20H100S100 V, 20 A Field-Effect Rectifier Diode (FERD) | Diodes | 1 | Active | The device is based on a proprietary technology that achieves the best in class VF/IRtrade-off for a given silicon surface.
This 100 V rectifier has been optimized for use in confined casing applications where both efficiency and thermal performance matter.
With a lower dependency of leakage current (IR) and forward voltage (VF) in function of temperature, the thermal runaway risk is reduced. Therefore, it can advantageously replace 100 V Schottky diodes. |
FERD20H60C60 V, 20 A dual Field-Effect Rectifier Diode (FERD) | Diodes | 2 | Active | The device is based on a proprietary technology that achieves the best in class VF/IRtrade-off for a given silicon surface.
This 60 V rectifier has been optimized for use in confined applications where both efficiency and thermal performance are key.
This device is suitable for use in adapters and chargers. |
