Philips TDA8928J Benutzerhandbuch
2004 May 05
3
Philips Semiconductors
Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
audio amplifier
TDA8928J
1
FEATURES
•
High efficiency (> 90 %)
•
Supply voltage from
±
7.5 V to
±
30 V
•
Very low quiescent current
•
High output power
•
Diagnostic output
•
Usable as a stereo Single-Ended (SE) amplifier
•
Electrostatic discharge protection (pin to pin)
•
No heatsink required.
2
APPLICATIONS
•
Television sets
•
Home-sound sets
•
Multimedia systems
•
All mains fed audio systems.
3
GENERAL DESCRIPTION
The TDA8928J is a switching power stage for a high
efficiency class-D audio power amplifier system.
efficiency class-D audio power amplifier system.
With this power stage a compact 2
×
10 W self oscillating
digital amplifier system can be built, operating with high
efficiency and very low dissipation. No heatsink is
required. The system operates over a wide supply voltage
range from
efficiency and very low dissipation. No heatsink is
required. The system operates over a wide supply voltage
range from
±
7.5 V up to
±
30 V and consumes a very low
quiescent current.
4
QUICK REFERENCE DATA
5
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
General
V
P
supply voltage
±
7.5
±
12.5
±
30
V
I
q(tot)
total quiescent current
no load connected; V
P
=
±
12.5 V
−
25
45
mA
η
efficiency
P
o
= 10 W; R
L
= 8
Ω
; V
P
=
±
12.5 V
−
90
−
%
Stereo single-ended configuration
P
o
output power
R
L
= 8
Ω
; THD = 10 %; V
P
=
±
12.5 V
9
10
−
W
R
L
= 16
Ω
; THD = 10 %; V
P
=
±
12.5 V
−
5
−
W
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8928J
DBS17P
plastic DIL-bent-SIL power package; 17 leads (lead length 7.7 mm)
SOT243-3
TDA8928ST
RDBS17P
plastic rectangular DIL-bent-SIL power package; 17 leads (row
spacing 2.54 mm)
spacing 2.54 mm)
SOT577-2