AmplifierCircuits

Features: High output power capability: – 4 x 50 W/4  max. – 4 x 30 W/4  @ 14.4 V, 1 kHz, 10 % – 4 x 80 W/2  max. – 4 x 55 W/2  @ 14.4V, 1 kHz, 10 % MOSFET output power stage Excellent 2  driving capability Hi-Fi class distortion Low output noise ST-BY function Mute function Automute at min. supply voltage detection Low external component count: – Internally fixed gain (26 dB) – No external compensation – No bootstrap capacitors ■ On board 0.35 A high side driver Protections: Output short circuit to gnd, to Vs, across the  load Very inductive loads Overrating chip temperature with soft thermal  limiter Output DC offset detection Load dump voltage Fortuitous open gnd Reversed battery Circuit Diagram: 4 x 50 W MOSFET quad bridge power amplifier

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 c onfiguration. 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. Features and benefits: 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-cir...

FEATURES I 2C-bus control Can drive a 2 Ω load with a battery voltage of up to 16 V  and a 4 Ω load with a battery voltage of up to 18 V DC load detection, open, short and present AC load (tweeter) detection Programmable clip detect; 1 % or 4 % Programmable thermal protection pre-warning Independent short-circuit protection per channel Low gain line driver mode (20 dB) Loss-of-ground and open VP safe All outputs protected from short-circuit to ground, to VP  or across the load All pins protected from short-circuit to ground Soft thermal-clipping to prevent audio holes Low battery detection. Voltage regulators PROTECTION If connection to the battery voltage is reversed, all  regulator voltages will be zero Able to withstand voltages at the output of up to 18 V  (supply line may be short-circuited) Thermal protection to avoid thermal breakdown Load-dump protection Regulator outputs protected from DC short-circuit to  ground or to...

Features High output power capability: 4 x 50 W/4  max. 4 x 30 W/4  @ 14.4 V, 1 kHz, 10 % 4 x 80 W/2  max. 4 x 55 W/2  @ 14.4V, 1 kHz, 10 % MOSFET output power stage Excellent 2  driving capability Hi-Fi class distortion Low output noise ST-BY function Mute function Automute at min. supply voltage detection Low external component count: Internally fixed gain (26 dB) No external compensation No bootstrap capacitors On board 0.35 A high side driver Output short circuit to gnd, to Vs, across the load Very inductive loads Overrating chip temperature with soft thermal limiter Output DC offset detection Load dump voltage Fortuitous open gnd Reversed battery Circuit Diagram 4 x 50 W MOSFET quad bridge power amplifier

Features: Multipower BCD technology MOSFET output power stage DMOS power output Differential Input New high efficiency (class SB) High output power capability 4x28 W/4  @  14.4 V, 1 kHz, 10% THD, 4x50 W MAX power  Max. output power 4x72 W/2  Full I2C bus driving: Independent front/rear soft play/mute Selectable gain 26 dB /16 dB (for low noise  line output function) High efficiency enable/disable I2C bus digital diagnostics (including DC  and AC load detection) Operates both in I2C and non-I2C bus mode Two selectable I2C bus addresses Full fault protection DC offset detection Four independent short circuit protection Clipping detector pin with selectable threshold  (2 %/10 %) Standby/mute pin Linear thermal shutdown with multiple thermal  warning ESD protection Description: The TDA7567PD is a new BCD technology quad  bridge power amplifier in PowerSO36 package  specially intended for automo...

Features: ■ Multipower BCD technology ■ MOSFET output power stage ■ DMOS power output ■ New high efficiency (class SB) ■ High output power capability 4x28 W/4  @  14.4 V, 1 kHz, 10 % THD, 4x50 W max, power  ■ Max. output power 4x72 W/2  ■ Full I2C bus driving: – Standby – Independent front/rear soft play/mute – Selectable gain (for low noise line output  function) – High efficiency enable/disable – I2C bus digital diagnostics (including AC  and DC load detection) ■ Full fault protection ■ DC offset detection ■ Four independent short circuit protection ■ Clipping detector (2 %/10 %) ■ Linear thermal shutdown with multiple thermal  warning ■ ESD protection Description: The TDA7564B is a new BCD technology quad  bridge type of car radio amplifier in Flexiwatt25 /  PowerSO36 package specially intended for car  radio applications.  Thanks to the DMOS output stage the TDA7564B  has a ve...

Features: ■ Multipower BCD technology ■ MOSFET output power stage ■ DMOS power output ■ New high efficiency (class SB) ■ High output power capability 4 x 28 W / 4  @  14.4 V, 1 kHz, 10 % THD, 4 x 50 W max power  ■ Max. output power 4 x 72 W / 2  ■ Full I2C bus driving: – Standby – Independent front/rear soft play/mute – Selectable gain 30 dB / 16 dB (for low noise  line output function) – High efficiency enable/disable – I2C bus digital diagnostics (including DC  and AC load detection) ■ Full fault protection ■ DC offset detection ■ Four independent short circuit protection ■ Clipping detector pin with selectable threshold  (2 % / 10 %) ■ Standby/mute pin ■ Linear thermal shutdown with multiple thermal  warning ■ ESD protection Description: The TDA7563B is a new BCD technology quad  bridge type of car radio amplifier in Flexiwatt27 &  PowerSO36 packages specially intended for car...

General Description: The TDA7386 is an AB class audio power  amplifier, packaged in Flexiwatt 25 and designed  for high end car radio applications.  Based on a fully complementary PNP/NPN   configuration, the TDA7386 allows a rail to rail   output voltage swing with no need of bootstrap  capacitors. The extremely reduced boundary  components count allows very compact sets. Circuit Diagram: 4 x 49 W quad bridge car radio amplifier