TDA8932T NXP Semiconductors, TDA8932T Datasheet - Page 11

Audio Amplifiers 2X15W BTL CLASS D AMP+VOLCTRL

TDA8932T

Manufacturer Part Number
TDA8932T
Description
Audio Amplifiers 2X15W BTL CLASS D AMP+VOLCTRL
Manufacturer
NXP Semiconductors
Datasheet

Specifications of TDA8932T

Product
Class-D
Output Power
50 W
Available Set Gain
36 dB
Common Mode Rejection Ratio (min)
56 dB
Thd Plus Noise
0.015 %
Operating Supply Voltage
22 V
Maximum Power Dissipation
5000 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Audio Load Resistance
8 Ohms
Dual Supply Voltage
+/- 11 V
Input Signal Type
Differential
Minimum Operating Temperature
- 40 C
Output Signal Type
Differential, Single
Supply Type
Single or Dual
Supply Voltage (max)
36 V
Supply Voltage (min)
10 V
Output Type
1-Channel Mono or 2-Channel Stereo
Package / Case
SOIC-32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
TDA8932T/N1,112

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NXP Semiconductors
TDA8932_2
Preliminary data sheet
8.5 Diagnostic input and output
8.6 Differential inputs
In a symmetrical supply the UBP is released when the unbalance of the supply voltage is
within 6 % of its starting value.
Table 6
Table 6.
Whenever a protection is triggered, except for TF, pin DIAG is activated to LOW level (see
Table
approximately 2.4 V. This internal reference supply can deliver approximately 50 A.
Pin DIAG refers to pin CGND. The diagnostic output signal during different short
conditions is illustrated in
device into Fault mode.
For a high common-mode rejection ratio and a maximum of flexibility in the application,
the audio inputs are fully differential. By connecting the inputs anti-parallel, the phase of
one of the two channels can be inverted, so that the amplifier can operate as a mono BTL
amplifier. The input configuration for a mono BTL application is illustrated in
In SE configuration it is also recommended to connect the two differential inputs in
anti-phase. This has advantages for the current handling of the power supply at low signal
frequencies and minimizes supply pumping (see also
Protection
OTP
OCP
WP
UVP
OVP
UBP
Fig 5. Diagnostic output for different short-circuit conditions
6). An internal reference supply will pull-up the open-drain DIAG output to
shows an overview of all protection and the effect on the output signal.
Protection overview
2.4 V
0 V
Restart
When fault is removed
no
yes
yes
no
no
no
V
o
Rev. 02 — 12 December 2006
Figure
50 ms
shorted load
5. Using pin DIAG as input, a voltage < 0.8 V will put the
50 ms
amplifier
restart
2.4 V
0 V
V
o
Section
Every 100 ms
yes
no
no
yes
yes
yes
14.8).
no restart
supply line
Class-D audio amplifier
short to
001aad759
TDA8932
© NXP B.V. 2006. All rights reserved.
Figure
11 of 45
6.

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