|
|
PDF TB2941HQ Data sheet ( Hoja de datos )
| Número de pieza | TB2941HQ | |
| Descripción | Maximum Power 49W BTL x 4ch Audio Power Amp IC | |
| Fabricantes | Toshiiba | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TB2941HQ (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
|
No Preview Available !
Bi-CMOS Linear Integrated Circuit Silicon Monolithic
TB2941HQ
Maximum Power 49 W BTL × 4ch Audio Power Amp IC
TB2941HQ
1. Description
The TB2941HQ is a power IC with built-in four-channel BTL
amplifier developed for car audio application. The maximum
output power POUT is 49 W using a pure complementary P-ch and
N-ch DMOS output stage.
In addition, a standby switch, a mute function, output offset
voltage detector, high-side switch and various protection features
are included.
2. Applications
Power Amp IC developed for car audio applications.
Weight: 7.7 g (typ.)
3. Features
• High output power, low distortion, and low noise property (for details, refer to the Table 1 Typical
Characteristics).
• Built-in high-side switches. (Pin25) (Note2)
• Built-in detecting output offset voltage. (Pin1,Pin25) (Note2)
• Built-in muting function. (Pin22)
• Built-in auto muting functions (for low Vcc and stand-by
sequence)
• Built-in stand-by switch. (Pin4)
Table 1 Typical Characteristics
(Note1)
Test condition
Typ. Unit
• Built-in various protection circuits (thermal shut down,
over-voltage, short to VCC, short to GND, and output to output
short)
Output power (POUT)
VCC = 15.2 V, JEITA max
49
VCC = 13.7 V, JEITA max
40
THD = 10%
24
W
Output power (POUT) (RL = 2 Ω)
VCC = 13.7 V, JEITA max
THD = 10%
73
45
W
Total harmonic distortion (THD)
POUT = 4 W
0.006
%
Output noise voltage (VNO) (Rg = 0 Ω)
Filter : DIN AUDIO
65 µVrms
Note1:
Operating Supply voltage range (VCC)
RL = 4 Ω
RL = 2 Ω
6 to 18
6 to 16
V
Typical test conditions: VCC = 13.2 V, f = 1 kHz, RL = 4 Ω, Ta = 25°C; unless otherwise specified.
Rg: signal source resistance
Note2:
Pin25 functions are selected by mute terminal (pin 22) voltage.
1
2015-07-22
1 page  
6. Functional Description
10
Ripple
11
C1: 0.22 μF IN1
6 20
VCC2 VCC1
MPC
DFA
C1: 0.22 μF IN2
12
AC-GND
13 Pre-GND
MPC
C1: 0.22 μF IN3
15
AC-GND
C6: 1 μF
16 AC-GND
MPC
C1: 0.22 μF IN4
14
AC-GND
DFA
DFA
5V
Play
Mute
4 Stby
R1: 47 kΩ
22 Mute
AC-GND
MPC
H-SW / Offset Det
Offset Det
TB2941HQ
+B
OUT1 (+)
9
PW-GND1
8 RL
OUT1 (−)
7
OUT2 (+)
5
PW-GND2
2 RL
OUT2 (−)
3
OUT3 (+)
17
PW-GND3
18
RL
OUT3 (−)
19
OUT4 (+)
21
PW-GND4
24 RL
23 OUT4 (−)
25
1
Component Recommended
Name
Value
Pin
INx
C1
0.22 μF
(x:1 to 4)
C2
10 μF
Ripple
C3
0.1 μF
VCC1,
VCC2
C6
1 μF
AC-GND
C5
3900 μF
VCC1,
VCC2
R1 / C4
47 kΩ / 1 μF
Mute
Purpose
To eliminate DC
To reduce ripple
To provide sufficient
oscillation margin
Common reference
voltage for all input
Ripple filter
Mute ON/OFF
Smooth switching
Effect (Note1)
Lower than Recommended Value Higher than Recommended Value
Cut-off frequency becomes higher Cut-off frequency becomes lower
Turn on/off time shorter
Turn on/off time longer
Reduces noise and provides sufficient oscillation margin
Pop noise is suppressed when C1: C6 = 1:4. (Note2)
Power supply ripple filtering
Pop noise becomes larger
Switching time becomes longer
Note1: When the unrecommended value is used, please examine it enough by system evaluation.
Note2: Since “AC-GND” pin is a common reference voltage for all input, this product needs to set the ratio of an input
capacitance (C1) and the AC-GND capacitance (C6) to 1:4
Note3: Use the low leak current capacitor for C1 and C6.
5 2015-07-22
5 Page 
TB2941HQ
+Vos-det(on)
Output waveform
OUT(+) to OUT(-)
0
-Vos-det(on)
V1/V25
Detection
result
0
Abnormal offset voltage
t
Term of abnormal offset voltage
Figure 8 The detected result and audio output waveform
11 2015-07-22
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet TB2941HQ.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TB2941HQ | Maximum Power 49W BTL x 4ch Audio Power Amp IC | Toshiiba |
| 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 |