FDA903D-EHT datasheet(8/82 Pages) STMICROELECTRONICS

No de pièce	FDA903D-EHT

Description	1 x 45 W class D digital input automotive power amplifier with ILoad current monitoring, wide voltage operation range for car audio and telematic

PDF	82 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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8 / 82 page

Description

FDA903D

8/82

DocID031502 Rev 2

Description

The FDA903D 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 FDA903D integrates a high performance D/A converter together with powerful

MOSFET outputs in class D, so it is very compact and powerful, moreover 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 is including the output L-C low-pass filter, allowing superior frequency

response linearity and lower distortion.

FDA903D is configurable through I2C bus interface and is integrating 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 FDA903D features a configurable power limiting function, and can be optionally

operated under no I2C mode ('legacy mode').

FDA903D-EHT Fiches technique(PDF) 8 Page - STMicroelectronics