4 x 50W power amplifier
TDA8594
I2C-bus controlled 4 50 W power amplifier
Rev. 5 — 11 June 2013
Product data sheet
1. General description
Th...
Description
TDA8594
I2C-bus controlled 4 50 W power amplifier
Rev. 5 — 11 June 2013
Product data sheet
1. General description
The TDA8594 is a complementary quad Bridge Tied Load (BTL) audio power amplifier made in BCDMOS technology. It contains four independent amplifiers in BTL configuration. Through the I2C-bus, diagnosis of temperature warning and clipping level is fully programmable and the information available via two diagnostic pins is selectable. The status of each amplifier (output offset, load or no load, short-circuit or speaker incorrectly connected) can be read separately.
2. Features and benefits
2.1 General
Operates in legacy mode (non I2C-bus) and I2C-bus mode (3.3 V and 5 V compliant) Three hardware-programmable I2C-bus addresses Drives 4 or 2 loads Speaker fault detection Independent short-circuit protection per channel Loss of ground and open VP safe (with 200 m series impedance and a supply
decoupling capacitor of 2200 F maximum) All outputs short-circuit proof to ground, supply voltage and across the load All pins short-circuit proof to ground Temperature-controlled gain reduction to prevent audio holes at high junction
temperatures Low battery voltage detection Offset detection This part has been qualified in accordance with AEC-Q100
2.2 I2C-bus mode
DC load detection: open-circuit, short-circuit and load present AC load (tweeter) detection During start-up, can detect which load is connected so the appropriate gain can be
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