Datasheet > TFA9810TN1

TFA9810TN1

更新时间： 2024-02-17 01:31:05

品牌	Logo	应用领域
恩智浦 - NXP		音频放大器
页数	文件大小	规格书
29页	164K
描述
Stereo full-bridge audio amplifier 2 x 12 W

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TFA9810TN1 数据手册

TFA9810

Stereo full-bridge audio ampliﬁer 2 x 12 W

Rev. 03 — 20 February 2008

Product data sheet

1. General description

The TFA9810 is a two-channel power comparator for high-efﬁciency class D audio

ampliﬁer systems. It contains two full-bridge Bridge-Tied Load (BTL) power stages, drive

logic, protection control logic and full differential input comparators. By using this power

comparator a compact closed-loop self-oscillating digital ampliﬁer system or open-loop

system can be built. The TFA9810 does not require a heat sink and operates using an

asymmetrical supply voltage.

2. Features

I Stereo full-bridge power comparator for class D audio ampliﬁer applications

I No external heat sink required

I Operating voltage range: asymmetrical from 8 V to 20 V

I Thermally protected

I Zero dead-time switching

I Current-limiting (no audible interruptions)

3. Applications

I Self-oscillating or open-loop class D audio ampliﬁer applications

I Flat-panel television sets

I Flat-panel monitors

I Multimedia systems

I Wireless speakers

I High-end CRT television sets

4. Quick reference data

Table 1.

Quick reference data

T_amb= 25 °C; V_P= 12 V; f_osc= 550 kHz; Figure 33 unless otherwise speciﬁed

Symbol

Parameter

Condition

Min

Typ

Max Unit

V_P

I_off

I_q

supply voltage

off-state current

quiescent current

V_P= V_DDPx− V_SSPx

off mode

110

200

µA

with load, ﬁlter and

snubbers connected

η_po

output power

efﬁciency

output power

2 x 9 W into 8 Ω;

P_o= P_o(nom)

12 3 4 5 6 7...29

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