|
|
PDF TDA8932 Data sheet ( Hoja de datos )
| Número de pieza | TDA8932 | |
| Descripción | Class-D audio amplifer | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TDA8932 (archivo pdf) en la parte inferior de esta página. Total 45 Páginas | ||
|
No Preview Available !
TDA8932
Class-D audio amplifier
Rev. 02 — 12 December 2006
Preliminary data sheet
1. General description
The TDA8932 is a high efficiency class-D amplifier with low power dissipation.
The typical output power is 2 × 15 W in stereo half-bridge application (RL = 4 Ω) or
1 × 30 W typical in full-bridge application (RL = 8 Ω). Due to the low power dissipation the
device can be used without any external heat sink when playing music. If proper cooling
via the printed-circuit board is implemented, a continuous output power of 2 × 15 W is
feasible. Due to the implementation of thermal foldback, even for high supply voltages
and/or lower load impedances, the device remains operating with considerable music
output power without the need for an external heat sink.
The device has two full-differential inputs driving two independent outputs. It can be used
as mono full-bridge configuration (BTL) or as stereo half-bridge configuration (SE).
2. Features
www.DataSheet4U.com
I Operating voltage from 10 V to 36 V asymmetrical or ±5 V to ±18 V symmetrical
I Mono-bridged tied load (full-bridge) or stereo single-ended (half-bridge) application
I Application without heatsink using thermally enhanced small outline package
I High efficiency and low-power dissipation
I Thermally protected and thermal foldback
I Current limiting to avoid audio holes
I Full short-circuit proof across load and to supply lines (using advanced current
protection)
I Switchable internal or external oscillator (master-slave setting)
I No pop noise
I Full-differential inputs
3. Applications
I Flat panel television sets
I Flat panel monitor sets
I Multimedia systems
I Wireless speakers
I Mini and micro systems
I Home sound sets
1 page  
NXP Semiconductors
TDA8932
Class-D audio amplifier
Table 3.
Symbol
HVP2
VDDP2
BOOT2
OUT2
VSSP2
STAB2
STAB1
VSSP1
OUT1
BOOT1
VDDP1
HVP1
OSCIO
VSSD(HW)
Pin description …continued
Pin Description
19 half supply output voltage 2 for charging single-ended capacitor for
channel 2
20 positive power supply voltage for channel 2
21 bootstrap high-side driver channel 2
22 PWM output channel 2
23 negative power supply voltage for channel 2
24 decoupling of internal 11 V regulator for channel 2 drivers
25 decoupling of internal 11 V regulator for channel 1 drivers
26 negative power supply voltage for channel 1
27 PWM output channel 1
28 bootstrap high-side driver channel 1
29 positive power supply voltage for channel 1
30 half supply output voltage 1 for charging single-ended capacitor for
channel 1
31 oscillator input in slave configuration or oscillator output in master
configuration
32 negative digital supply voltage and handle wafer connection
www.DataSheet4U.com
TDA8932_2
Preliminary data sheet
Rev. 02 — 12 December 2006
© NXP B.V. 2006. All rights reserved.
5 of 45
5 Page 
NXP Semiconductors
TDA8932
Class-D audio amplifier
In a symmetrical supply the UBP is released when the unbalance of the supply voltage is
within 6 % of its starting value.
Table 6 shows an overview of all protection and the effect on the output signal.
Table 6. Protection overview
Protection
Restart
When fault is removed
OTP
no
OCP
yes
WP yes
UVP
no
OVP
no
UBP
no
Every 100 ms
yes
no
no
yes
yes
yes
8.5 Diagnostic input and output
Whenever a protection is triggered, except for TF, pin DIAG is activated to LOW level (see
Table 6). An internal reference supply will pull-up the open-drain DIAG output to
approximately 2.4 V. This internal reference supply can deliver approximately 50 µA.
Pin DIAG refers to pin CGND. The diagnostic output signal during different short
conditions is illustrated in Figure 5. Using pin DIAG as input, a voltage < 0.8 V will put the
device into Fault mode.
www.DataSheet4U.com
Vo
2.4 V
Vo
2.4 V
amplifier
restart
0V 0V
≈ 50 ms ≈ 50 ms
shorted load
no restart
short to
supply line
001aad759
Fig 5. Diagnostic output for different short-circuit conditions
8.6 Differential inputs
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 Figure 6.
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 Section 14.8).
TDA8932_2
Preliminary data sheet
Rev. 02 — 12 December 2006
© NXP B.V. 2006. All rights reserved.
11 of 45
11 Page | ||
| Páginas | Total 45 Páginas | |
| PDF Descargar | [ Datasheet TDA8932.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TDA8931 | Power comparator 1 X 20 W | NXP Semiconductors |
| TDA8932 | Class-D audio amplifer | NXP Semiconductors |
| TDA8932B | Class-D audio amplifer | NXP Semiconductors |
| TDA8933 | Class-D audio amplifier | NXP Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |