TDA8931

更新时间： 2024-11-17 21:54:55

品牌	Logo	应用领域
恩智浦 - NXP		比较器
页数	文件大小	规格书
31页	161K
描述
Power comparator 1 X 20 W

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数据手册

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TDA8931 数据手册

TDA8931

Power comparator 1 × 20 W

Rev. 01 — 14 January 2004

Preliminary data sheet

1. General description

The TDA8931 is a switching power stage for high efﬁciency class-D audio power ampliﬁer

systems.

It contains a Single-Ended (SE) power stage, drive logic, protection control logic, a full

differential input comparator and a HVP charger to charge the SE capacitor. With this

ampliﬁer a compact 1 × 20 W closed loop self-oscillating digital ampliﬁer system can be

built. The TDA8931 has a high efﬁciency so that a heat sink is not required up to

20 W (RMS). The system operates on an asymmetrical and a symmetrical supply voltage.

2. Features

■ High efﬁciency

■ Operating voltage asymmetrical from 12 V to 35 V

■ Operating voltage symmetrical from ±6 V to ±17.5 V

■ Thermally protected

■ No heat sink required

■ Charger for single-ended capacitor

■ No pop sound

3. Applications

■ Flat panel television sets

■ Flat panel monitors

■ Multimedia systems

■ Wireless speakers

■ Micro systems

4. Quick reference data

Table 1:

Quick reference data

Symbol Parameter

General

Conditions

Min

Typ

Max Unit

V_P

operating supply

voltage

asymmetrical

±6

symmetrical

±11

±17.5 V

I_q

quiescent current

standby current

sleep current

Operating mode; V_P= 22 V

Standby mode; V_P= 22 V

Sleep mode; V_P= 22 V

I_stb

I_sleep

100

200

µA

12 3 4 5 6 7...31

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