TDA8925 Datasheet, PDF (3/23 Pages) NXP Semiconductors – Power stage 2 x 15 to 25Wclass-D audio amplifier

Philips Semiconductors
Power stage 2 x 15 to 25 W class-D
audio amplifier
Product specification
TDA8925
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.
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.
2 APPLICATIONS
• Television sets
• Home-sound sets
• Multimedia systems
• All mains fed audio systems.
4 QUICK REFERENCE DATA
SYMBOL
PARAMETER
General
V_P
I_q(tot)
η
supply voltage
total quiescent current
efficiency endstage
Stereo single-ended configuration
P_o
output power
CONDITIONS
no load connected; V_P = ±15 V
P_o = 15 W; R_L = 8 Ω; V_P = ±15 V
R_L = 8 Ω; THD = 10 %; V_P = ±15 V
R_L = 6 Ω; THD = 10 %; V_P = ±15 V
MIN. TYP. MAX. UNIT
±7.5 ±15 ±30 V
−
25
45
mA
−
94
−
%
14
15
−
W
−
20
−
W
5 ORDERING INFORMATION
TYPE
NUMBER
TDA8925ST
TDA8925J
NAME
RDBS17P
DBS17P
PACKAGE
DESCRIPTION
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)
VERSION
SOT577-2
SOT243-3
2004 May 06
3