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2004 May 05 3
Philips Semiconductors Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
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.
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 ±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
=8Ω; V
P
= ±12.5 V − 90 − %
Stereo single-ended configuration
P
o
output power R
L
=8Ω; THD = 10 %; V
P
= ±12.5 V 9 10 − W
R
L
=16Ω; 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)
SOT577-2