●Overview
●The TDF8530 is a quad Bridge-Tied Load (BTL) car audio amplifier comprising an NDMOST-NDMOST output stage based on SOI BCDMOS technology. Low power dissipation enables the TDF8530 high-efficiency, class-D amplifier to be used with a smaller heat sink than those normally used with standard class-AB amplifiers.
●The TDF8530 can operate in either non-I²C-bus mode or I²C-bus mode. When in I²C-bus mode, DC load detection results and fault conditions can be easily read back from the device. Up to 12 I²C-bus addresses can be selected depending on the value of the external resistors connected to pins ADS and MOD.
●When pin ADS is short circuited to ground, the TDF8530 operates in non-I²C-bus mode. Switching between Operating mode and Mute mode in non-I²C-bus mode is only possible using pins EN and SEL_MUTE.
●MoreLess
●## Features
● High-efficiency
● Low quiescent current
● Operating voltage from 6 V to 24 V
● 4 Ω or 2 Ω capable BTL channels
● Fast-mode I²C-bus
● I²C-bus mode with 12 I²C-bus addresses or non-I²C-bus mode operation
● Clip detect selectable at 0.2 % or 10 % THD
● Independent short-circuit protection for each channel
● Advanced short-circuit protection for load, GND and supply
● Load dump protection to 50 V
● Thermal foldback and thermal protection
● DC offset protection
● Selectable AD or BD modulation
● Advanced clocking:
● Switchable oscillator clock source: internal for Master mode or external for Slave mode
● Spread spectrum mode
● Phase staggering
● Frequency hopping
● No ‘pop noise’ caused by DC output offset voltage
● I²C-bus mode:
● Load diagnostics
● Speaker load, open load and shorted load
● Amplifier output to ground and to supply shorts
● Tweeter detection
● Thermal pre-warning diagnostic level setting
● Identification of activated protections or warnings
● Selectable diagnostic information available using DIAG pin
● Qualified in accordance with AEC-Q100
●## Target Applications
● Car audio
● Audio entertainment systems
●## Features