TDA8927 데이터 시트보기 (PDF) - Philips Electronics

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TDA8927

Power stage 2×80 W class-D audio amplifier

Philips Electronics 

Philips Semiconductors

Power stage 2 × 80 W class-D

audio amplifier

Objective specification

TDA8927

1 FEATURES

• High efficiency (>94%)

• Operating voltage from ±15 to ±30 V

• Very low quiescent current

• High output power

• Short-circuit proof across the load, only in combination

with controller TDA8929T

• Diagnostic output

• Usable as a stereo Single-Ended (SE) amplifier or as a

mono amplifier in Bridge-Tied Load (BTL)

• Electrostatic discharge protection (pin to pin)

• Thermally protected, only in combination with controller

TDA8929T.

2 APPLICATIONS

• Television sets

• Home-sound sets

• Multimedia systems

• All mains fed audio systems

• Car audio (boosters).

3 GENERAL DESCRIPTION

The TDA8927 is the switching power stage of a two-chip

set for a high efficiency class-D audio power amplifier

system. The system is split into two chips:

• TDA8927J/ST/TH; a digital power stage in a DBS17P,

RDBS17P or HSOP24 power package

• TDA8929T; the analog controller chip in a SO24

package.

With this chip set a compact 2 × 80 W audio amplifier

system can be built, operating with high efficiency and very

low dissipation. No heatsink is required, or depending on

supply voltage and load, a very small one. The system

operates over a wide supply voltage range from

±15 up to ±30 V and consumes a very low quiescent

current.

4 QUICK REFERENCE DATA

SYMBOL

PARAMETER

General; VP = ±25 V

VP

Iq(tot)

η

supply voltage

total quiescent current

efficiency

Stereo single-ended configuration

Po

output power

Mono bridge-tied load configuration

Po

output power

CONDITIONS

MIN. TYP. MAX. UNIT

no load connected

Po = 30 W

±15 ±25 ±30 V

−

35

45

mA

−

94

−

%

RL = 4 Ω; THD = 10%; VP = ±25 V 60

65

−

W

RL = 4 Ω; THD = 10%; VP = ±27 V 74

80

−

W

RL = 4 Ω; THD = 10%; VP = ±17 V 90

110 −

W

RL = 8 Ω; THD = 10%; VP = ±25 V 120 150 −

W

5 ORDERING INFORMATION

TYPE NUMBER

TDA8927J

TDA8927ST

TDA8927TH

NAME

DBS17P

RDBS17P

HSOP24

PACKAGE

DESCRIPTION

plastic DIL-bent-SIL power package; 17 leads (lead length

12 mm)

plastic rectangular-DIL-bent-SIL power package; 17 leads (row

spacing 2.54 mm)

plastic, heatsink small outline package; 24 leads; low stand-off

height

VERSION

SOT243-1

SOT577-1

SOT566-2

2001 Dec 11

3

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