TDA8927 Datasheet

  • TDA8927

  • Power stage 2 X 80 W class-D

  • 336.42KB

  • Philips

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Philips Semiconductors
Objective speci铿乧ation
Power stage 2
80 W class-D
audio ampli铿乪r
8.3
BTL operation
TDA8927
In this way the system operates as a mono BTL amplifier
and with the same loudspeaker impedance a four times
higher output power can be obtained.
For more information see Chapter 15.
BTL operation can be achieved by driving the audio input
channels of the controller in the opposite phase and by
connecting the loudspeaker with a BTL output filter
between the two PWM output pins of the power stage
(see Fig.6).
handbook, full pagewidth
VDD2 VDD1
13
5
6
DRIVER
HIGH
7 OUT1
DRIVER
LOW
VSS1
VDD2
12
DRIVER
HIGH
11 OUT2
DRIVER
LOW
8
10
MGU386
TDA8927J
4
1
2
9
3
15
TEMPERATURE SENSOR
AND
current
CURRENT PROTECTION
temp
CONTROL
AND
HANDSHAKE
BOOT1
EN1
SW1
REL1
STAB
DIAG
POWERUP
SGND
(0 V)
BOOT2
EN2
SW2
REL2
14
17
16
CONTROL
AND
HANDSHAKE
VSS1 VSS2
Fig.6 Mono BTL application.
2001 Dec 11
10

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