描述 Description

Overview The TDF8599 is a dual Bridge-Tied Load (BTL) car audio amplifier comprising an NDMOST-NDMOST output stage based on SOI BCDMOS technology. Low power dissipation enables the TDF8599 high-efficiency, class-D amplifier to be used with a smaller heat sink than those normally used with standard class-AB amplifiers.
The TDF8599 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 five I2C-bus addresses can be selected depending on the value of the external resistor connected to pins ADS and MOD.
When pin ADS is short circuited to pin AGND, the TDF8599 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.

特性 Features

High-efficiency
Low quiescent current
Operating voltage from 8 V to 18 V
Two 4 Ω/2 Ω capable BTL channels or one 1 ?? capable BTL channel
Differential inputs
Supports I2C-bus mode with five I2C-bus addresses or non-I2C-bus mode operation
Clip detect
Independent short circuit protection for each channel
Advanced short circuit protection for load, GND and supply
Load dump protection
Thermal foldback and thermal protection
DC offset protection
Selectable AD or BD modulation
Parallel channel mode for high current drive capability
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:
DC load detection
AC load detection
Thermal pre-warning diagnostic level setting
Identification of activated protections or warnings
Selectable diagnostic information available using pin DIAG and pin CLIP
Qualified in accordance with AEC-Q100