TDA8595

更新时间： 2024-10-28 04:28:35

品牌	Logo	应用领域
恩智浦 - NXP		放大器功率放大器
页数	文件大小	规格书
50页	295K
描述
I2C-bus controlled 4 ⅴ 45 W power amplifier

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TDA8595 数据手册

TDA8595

I²C-bus controlled 4 × 45 W power ampliﬁer

Rev. 02 — 21 November 2007

Product data sheet

1. General description

The TDA8595 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

2.1 General

I Operates in legacy mode (non I²C-bus) and I²C-bus mode (3.3 V and 5 V compliant)

I Three hardware-programmable I²C-bus addresses

I Drive 4 Ω or 2 Ω loads

I Speaker fault detection

I Independent short-circuit protection per channel

I Loss of ground and open V_Psafe (with 150 mΩ series impedance and a supply

decoupling capacitor of 2200 µF maximum)

I All outputs short-circuit proof to ground, supply voltage and across the load

I All pins short-circuit proof to ground

I Temperature-controlled gain reduction to prevent audio holes at high junction

temperatures

I Low battery voltage detection

I Offset detection

I This part has been qualiﬁed in accordance with AEC-Q100

2.2 I²C-bus mode

I DC load detection: open-circuit, short-circuit and load present

I AC load (tweeter) detection

I During start-up, can detect which load is connected so the appropriate gain can be

selected without audio pop

I Independently selectable soft mute of front channels (channel 1 and channel 3) and

rear channels (channel 2 and channel 4)

I Programmable gain (26 dB and 16 dB) of front channels and rear channels

I Fully programmable diagnostic levels can be set:

N Programmable clip detection: 2 %, 5 % or 10 %

N Programmable thermal pre-warning

12 3 4 5 6 7...50

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