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TDA8589BJ 数据表(PDF) 2 Page - NXP Semiconductors |
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TDA8589BJ 数据表(HTML) 2 Page - NXP Semiconductors |
2 / 55 page 2004 Feb 242 Philips Semiconductors Product speci cation I2C-bus controlled 4 45 Watt power ampli er and multiple voltage regulator TDA8589J; TDA8589xJ FEATURES Ampli ers I2C-bus control Can drivea2 load witha battery voltage of up to 16V and a 4 load with a battery voltage of up to 18V DC load detection: open, short and present AC load (tweeter) detection Programmable clip detect 1 % or 3% 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, toVP, or across the load All pins protected from short-circuit to ground Soft thermal-clipping to prevent audio holes Low battery detection. Voltage regulators GENERAL I2C-bus control Good stability with almost any output capacitor value Five voltage regulators (microcontroller, display, mechanical digital, mechanical drive and audio) Choice of non-adjustable 3.3 or 5 V microcontroller supply (REG2) versions reducing risk of overvoltage damage Choice of non-adjustable 3.3 or 5 V digital signal processor supply (REG3) versions reducing risk of overvoltage damage Selectable output voltages for regulators 1, 4 and5 Low dropout voltage PNP output stages High supply voltage ripple rejection Low noise for all regulators Two power switches (antenna switch and amplifier switch) Regulator 2 (microcontroller supply) operational during load-dump and thermal shut-down Low quiescent current (only regulator 2 is operational) Reset output (push-pull output stage) Adjustable reset delay time Backup functionality. 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 18V (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 supply voltage All regulators protected by foldback current limiting Power switches protected from loss-of-ground. APPLICATIONS Boost amplifier and voltage regulator for car radios and CD/MD players. GENERAL DESCRIPTION Ampli ers The TDA8589 has a complementary quad audio power amplifier that uses BCDMOS technology. It contains four amplifiers configured in Bridge Tied Load (BTL) to drive speakers for front and rear left and right channels. The I2C-bus allows diagnostic information of each amplifier and its speaker to be read separately. Both front and both rear channel amplifiers can be configured independently in line driver mode with a gain of 20 dB (differential output). Voltage regulators The TDA8589 has a multiple output voltage regulator with two power switches. The voltage regulator contains the following: Four switchable regulators and one permanently active regulator (microcontroller supply) Two power switches with loss-of-ground protection A reset output that can be used to communicate with a microcontroller. The quiescent current has a very low level of 150 A with only regulator 2 active. |
类似零件编号 - TDA8589BJ |
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类似说明 - TDA8589BJ |
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