TDA8932BTW NXP Semiconductors, TDA8932BTW Datasheet - Page 22

• Manufacturer Part Number: TDA8932BTW
• Description: Audio Amplifiers 2X15W BTL CLASS D AMP+VOLCTRL
• Manufacturer: NXP Semiconductors

Specifications of TDA8932BTW

• Product: Class-D
• Output Power: 55 W
• Available Set Gain: 36 dB
• Common Mode Rejection Ratio (min): 75 dB
• Thd Plus Noise: 0.007 %
• Operating Supply Voltage: 22 V
• Supply Current: 0.6 mA
• 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: HTSSOP-32
• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.007@8Ohm@1W%
• Single Supply Voltage (typ): 22V
• Dual Supply Voltage (typ): ±11V
• Supply Current (max): 0.195@22VmA
• Power Supply Requirement: Single/Dual
• Power Dissipation: 5W
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 10V
• Single Supply Voltage (max): 36V
• Dual Supply Voltage (min): ±5V
• Dual Supply Voltage (max): ±18V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: HTSSOP EP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TDA8932BTW/N2

NXP Semiconductors
14. Application information
TDA8932B_4
Product data sheet
14.1 Output power estimation
The output power P
configuration can be estimated using
SE configuration:
BTL configuration:
Where:
The output power P
Figure 8
THD+N = 10 % as a function of the supply voltage for SE and BTL configurations at
different load impedances. The output power is calculated with: R
T
P
P
P
j
o 0.5%
o 0.5%
o 10%
V
R
R
R
R
t
f
= 25 C), R
w(min)
osc
P
L
DSon
s
ESR
= series resistance output inductor ( )
= supply voltage V
= load impedance ( )
= oscillator frequency (Hz); 320 kHz typical with Rosc = 39 k
= equivalent series resistance SE capacitor ( )
= minimum pulse width (s); 80 ns typical
=
= on-resistance power switch ( )
=
=
and
1.25 P
------------------------------------------------------------------------------------------------------------------------------------------ -
------------------------------------------------------------------------------------------------------------------------------------- -
----------------------------------------------------------
----------------------------------------------------- -
Figure 9
R
R
s
L
L
= 0.05 , R
+
+
2
R
o 0.5%
o
o
DSon
Rev. 04 — 18 December 2008
at THD+N = 0.5 %, just before clipping, for the SE and BTL
at THD+N = 10 % can be estimated by:
show the estimated output power at THD+N = 0.5 % and
R
R
R
DDP1
L
DSon
+
L
R
ESR
s
+
+
R
V
= 0.05
R
s
ESR
SSP1
2
8
R
(V) or V
Equation 2
R
1 t
L
L
1 t
–
and I
–
w min
w min
DDP2
O(ocp)
and
f
= 4 A (minimum).
osc
V
f
Equation
osc
SSP2
V
(V)
P
V
P
2
3.
2
Class-D audio amplifier
DSon
TDA8932B
= 0.15
© NXP B.V. 2008. All rights reserved.
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