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Philips Semiconductors
Power stage 2 x 15 to 25 W class-D
audio amplifier
1
FEATURES
• High efficiency (> 94 %)
• Operating 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.
4
QUICK REFERENCE DATA
SYMBOL
General
V
supply voltage
P
I
total quiescent current
q(tot)
η
efficiency endstage
Stereo single-ended configuration
P
output power
o
5
ORDERING INFORMATION
TYPE
NUMBER
NAME
TDA8925ST
RDBS17P
TDA8925J
DBS17P
2004 May 06
PARAMETER
no load connected; V
P
R
R
plastic rectangular-DIL-bent-SIL power package; 17 leads (row
spacing 2.54 mm)
plastic DIL-bent-SIL power package; 17 leads (lead length
7.7 mm)
3
GENERAL DESCRIPTION
The TDA8925 is a switching power stage for a high
efficiency class-D audio power amplifier system.
With this power stage a compact 2 × 15 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.
CONDITIONS
= ±15 V
P
= 8 Ω; V
= 15 W; R
o
L
P
= 8 Ω; THD = 10 %; V
L
= 6 Ω; THD = 10 %; V
L
PACKAGE
DESCRIPTION
3
MIN.
±7.5
−
= ±15 V
−
= ±15 V
14
P
= ±15 V
−
P
Product specification
TDA8925
TYP.
MAX.
UNIT
±15
±30
V
25
45
mA
−
94
%
−
15
W
−
20
W
VERSION
SOT577-2
SOT243-3
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