|
|
PDF TDF8599B Data sheet ( Hoja de datos )
| Número de pieza | TDF8599B | |
| Descripción | single channel 85 W/1 W class-D power amplifier | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TDF8599B (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
TDF8599B
I2C-bus controlled dual channel 43 W/4 Ω, single channel
85 W/1 Ω class-D power amplifier with load diagnostics
Rev. 01 — 29 July 2009
Product data sheet
1. General description
www.DataSheet4U.com
The TDF8599B is a dual Bridge-Tied Load (BTL) car audio amplifier comprising an
NDMOST-NDMOST output stage based on SOI BCDMOS technology. Low power
dissipation enables the TDF8599B high-efficiency, class-D amplifier to be used with a
smaller heat sink than those normally used with standard class-AB amplifiers.
The TDF8599B can operate in either non-I2C-bus mode or I2C-bus mode. When in
I2C-bus mode, DC load detection results and fault conditions can be easily read back from
the device. Up to 15 I2C-bus addresses can be selected depending on the value of the
external resistor connected to pins ADS and MOD.
When pin ADS is short circuited to ground, the TDF8599B operates in non-I2C-bus mode.
Switching between Operating mode and Mute mode in non-I2C-bus mode is only possible
using pins EN and SEL_MUTE.
2. Features
I High-efficiency
I Low quiescent current
I Operating voltage from 8 V to 24 V
I Two 4 Ω/2 Ω capable BTL channels or one 1 Ω capable BTL channel
I Differential inputs
I I2C-bus mode with 15 I2C-bus addresses or non-I2C-bus mode operation
I Clip detect
I Independent short circuit protection for each channel
I Advanced short circuit protection for load, GND and supply
I Load dump protection
I Thermal foldback and thermal protection
I DC offset protection
I Selectable AD or BD modulation
I Parallel channel mode for high current drive capability
I Advanced clocking:
N Switchable oscillator clock source: internal for Master mode or external for Slave
mode
N Spread spectrum mode
N Phase staggering
N Frequency hopping
I No ‘pop noise’ caused by DC output offset voltage
1 page  
NXP Semiconductors
TDF8599B
I2C-bus controlled dual channel class-D power amplifier
www.DataSheet4U.com
Table 3. Pin description …continued
Symbol
Pin Type[1] Description
CLIP
13 O
clip output; open-drain
DIAG
14 O
diagnostic output; open-drain
SDA
15 I/O
I2C-bus data input and output
SCL
16 I
I2C-bus clock input
SSM
17
master setting: Spread spectrum mode frequency
slave setting: phase lock operation
OSCSET
18
master/slave oscillator setting
master only setting: set internal oscillator frequency
OSCIO
19 I/O
external oscillator slave setting: input
internal oscillator master setting: output
DCP
20 I
DC protection input for the filtered output voltages
VSTAB2
21
decoupling internal stabilizer 2 for DMOST drivers
OUT2N
22 O
channel 2 negative PWM output
BOOT2N
23
boot 2 negative bootstrap capacitor
VP2[2]
PGND2
24 P
25 G
channel 2 power supply voltage
channel 2 power ground
BOOT2P
26
boot 2 positive bootstrap capacitor
OUT2P
27 O
channel 2 positive PWM output
OUT1P
28 O
channel 1 positive PWM output
BOOT1P
29
boot 1 positive bootstrap capacitor
PGND1
30 G
channel 1 power ground
VP1[2]
BOOT1N
31 P
32
channel 1 power supply voltage
boot 1 negative bootstrap capacitor
OUT1N
33 O
channel 1 negative PWM output
VSTAB1
34
decoupling internal stabilizer 1 for DMOST drivers
VDDD
GNDD/HW
35
36 G
decoupling of the internal 5 V logic supply
ground digital supply voltage
handle wafer connection
[1] I = input, O = output, I/O = input/output, G = ground and P = power supply.
[2] In this data sheet supply voltage VP describes VP1, VP2 and VPA.
8. Functional description
8.1 General
The TDF8599B is a dual full bridge (BTL) audio power amplifier using class-D technology.
The audio input signal is converted into a Pulse-Width Modulated (PWM) signal using the
analog input and PWM control stages. A PWM signal is applied to driver circuits for both
high-side and low-side enabling the DMOS power output transistors to be driven. An
external 2nd order low-pass filter converts the PWM signal into an analog audio signal
across the loudspeakers.
TDF8599B_1
Product data sheet
Rev. 01 — 29 July 2009
© NXP B.V. 2009. All rights reserved.
5 of 54
5 Page 
NXP Semiconductors
TDF8599B
I2C-bus controlled dual channel class-D power amplifier
8.4 Operation mode selection
Pin MOD is used to select specific operating modes. The resistor (RMOD) connected
between pins MOD and AGND together with the non-I2C-bus/I2C-bus mode determine the
operating mode (see Table 8). The mode of operation depends on whether non-I2C-bus
mode or I2C-bus mode is active. This in turn is determined by the resistor value connected
between pins ADS and AGND.
In non-I2C-bus mode, pin MOD is used to select:
www.DataSheet4U.com
• AD or BD modulation (see Section 8.4.1).
• 1⁄2 π phase shift when oscillator is used in Slave mode (see Section 8.4.2).
• Parallel mode operation (see Section 8.4.3).
In I2C-bus mode, pin MOD can only select Parallel mode. In addition, the modulation
mode and phase shift are programmed using I2C-bus commands.
Table 8. Operation mode selection with the MOD pin
RMOD (kΩ)
I2C-bus mode[1]
0 (short to AGND) Stereo mode
Non-I2C-bus mode[2]
AD modulation: no phase shift in Slave mode
4.7 BD modulation: no phase shift in Slave mode
13 AD modulation: 1⁄2 π phase shift in Slave mode
33
Parallel mode[3]
BD modulation: 1⁄2 π phase shift in Slave mode
100 AD modulation: no phase shift in Slave mode
∞ (open)
BD modulation: no phase shift in Slave mode
[1] RADS ≥ 4.7 kΩ; See Table 13 on page 23.
[2] RADS = 0 Ω; pin ADS is short circuited to pin AGND.
[3] See Section 8.4.3 on page 14 for more detailed information.
In I2C-bus mode, pin MOD is latched using the I2C-bus command IB3[D7] = 1. This avoids
amplifier switching interference generating incorrect information on pin MOD.
In non-I2C-bus mode or when IB3[D7] = 0, the information on pin MOD is latched when
one of the TDF8599B’s outputs starts switching.
8.4.1 Modulation mode
In non-I2C-bus mode, pin MOD is used to select either AD or BD modulation mode (see
Table 8). In I2C-bus mode, the modulation mode is selected using an I2C-bus command.
• AD modulation mode: the bridge halves switch in opposite phase.
• BD modulation mode: the bridge halves switch in phase but the input signal for the
modulators is inverted.
Figure 10 and Figure 11 show simplified representations of AD and BD modulation.
TDF8599B_1
Product data sheet
Rev. 01 — 29 July 2009
© NXP B.V. 2009. All rights reserved.
11 of 54
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TDF8599B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TDF8599 | I2C-bus controlled dual channel 43 W/2 W single channel 85 W/1 W class-D power amplifier | NXP Semiconductors |
| TDF8599A | single channel 250 W/2 W class-D power amplifier | NXP Semiconductors |
| TDF8599B | single channel 85 W/1 W class-D power 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 |