|
|
PDF TB2901HQ Data sheet ( Hoja de datos )
| Número de pieza | TB2901HQ | |
| Descripción | 4-ch Audio Power IC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TB2901HQ (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
|
No Preview Available !
TB2901HQ(O)
TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic
TB2901HQ
Maximum Power 47 W BTL × 4-ch Audio Power IC
The TB2901HQ is 4-ch BTL audio amplifier for car audio
applications.
This IC can generate higher power: POUT MAX = 47 W as it
includes the pure complementary P-ch and N-ch DMOS output
stage.
www.DataSheet4UI.tcoismdesigned to yield low distortion ratio for 4-ch BTL audio
power amplifier, built-in standby function, muting function, and
various kinds of protectors.
Additionally, high-side switch is built in.
Features
Weight: 7.7 g (typ.)
• High power output
: POUT MAX (1) = 47 W (typ.)
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)
: POUT MAX (2) = 43 W (typ.)
(VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 Ω)
POUT MAX (3) = 80 W (typ.)
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 2 Ω)
: POUT (1) = 29 W (typ.)
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
: POUT (2) = 25 W (typ.)
(VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
• Low distortion ratio: THD = 0.015% (typ.)
(VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 Ω)
• Low noise: VNO = 90 µVrms (typ.)
(VCC = 13.2 V, Rg = 0 Ω, BW = 20 Hz~20 kHz, RL = 4 Ω)
• Built-in standby switch function (pin 4)
• Built-in muting function (pin 22)
• Built-in high-side switch function (pin 25)
• Built-in various protection circuits:
Thermal shut down, overvoltage, out to GND, out to VCC, out to out short
• Operating supply voltage: VCC (opr) = 9~18 V (RL = 4 Ω)
Note 1: Since this device’s pins have a low withstanding voltage, please handle it with care.
Note 2: Install the product correctly. Otherwise, it may result in break down, damage and/or degradation to the
product or equipment.
Note 3: These protection functions are intended to avoid some output short circuits or other abnormal conditions
temporarily. These protect functions do not warrant to prevent the IC from being damaged.
In case of the product would be operated with exceeded guaranteed operating ranges, these protection
features may not operate and some output short circuits may result in the IC being damaged.
Note 4: The protection circuit may operate not correctly in case of the use of large phase-shift type speaker.
Therefore, it should be confirmed that there is no problem on actual evaluation or mass-production board.
Especially, it is necessary to be ware such a behavior when the large phase-shift type 2ohm load, which is
a kind of sub-woofer for example, is connected to this IC, though such kind of speaker use is not
recommended.
1 2004-10-15
1 page  
TB2901HQ(O)
4. High-Side Switch
Pin 25 of this device is used in concerned with VCC as a high-side switch which operates with the standby
pin. Thus, both the power amp IC and the connected external unit (the hideaway unit) can be turned
ON/OFF by using of the standby switch.
5. Pop Noise Suppression
Since the AC-GND pin (pin 16) is used as the NF pin for all amps, the ratio between the input
capacitance (C1) and the AC-to-GND capacitance (C6) should be 1:4.
Also, if the power is turned OFF before the C1 and C6 batteries have been completely charged, pop noise
will be generated because of the DC input umbalance.
To counteract the noise, it is recommended that a longer charging time be used for C2 as well as for C1
and C6. Note that the time which audio output takes to start will be longer, since the C2 makes the muting
time (the time from when the power is turned ON to when audio output starts) is fix.
www.DataSheet4U.com The pop noise which is generated when the muting function is turned ON/OFF will vary according to the
time constant of C4.
The greater the capacitance, the lower the pop noise. Note that the time from when the mute control
signal is applied to C4 to when the muting function is turned ON/OFF will be longer.
6. External Component Constants
Component Recommended
Name
Value
Purpose
Effect
Lower than recommended
value
Higher than recommended
value
Notes
C1
0.22 µF
To eliminate DC
Cut-off frequency is
increased
Pop noise is
Cut-off frequency is reduced generated when
VCC is ON
C2
10 µF
To reduce ripple
Powering ON/OFF is faster
Powering ON/OFF takes
longer
To provide
C3
0.1 µF
sufficient
Reduces noise and provides sufficient oscillation margin
oscillation margin
C4
1 µF
To reduce pop
noise
High pop noise. Duration until Low pop noise. Duration until
muting function is turned
muting function is turned
ON/OFF is short
ON/OFF is long
C5
3900 µF Ripple filter
Power supply ripple filtering
C6
1 µF
NF for all outputs Pop noise is suppressed when C1:C6 = 1:4
Pop noise is
generated when
VCC is ON
Note6: If recommended value is not used.
5 2004-10-15
5 Page 
0
VCC = 13.2 V
−20 RL = 4 Ω
VOUT = 20dBm
−40
muteATT – f
−60
−80
−100
www.DataSheet4U.com
−120
10
1 ch ~4ch
100 1 k 10 k
frequency f (Hz)
100 k
TB2901HQ(O)
0
VCC = 13.2 V
RL = 4 Ω
−20 RG = 620 Ω
Vrip =0dBm
R.R. – f
−40
4ch
−60 1ch
3ch 2ch
−80
10 100 1 k 10 k
frequency f (Hz)
100 k
GV – f
40
30
1 ch ~4ch
20
10 VCC = 13.2 V
RL = 4 Ω
VOUT = 0dBm
0
10 100 1 k 10 k 100 k
frequency f (Hz)
3
VCC = 13.2 V
1 RL = 4 Ω
POUT = 5 W
0.3 No filter
THD – f
0.1
0.03
0.01
0.003
4ch 2ch
3ch
1ch
0.001
10 100 1 k 10 k
frequency f (Hz)
100 k
11 2004-10-15
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TB2901HQ.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TB2901H | Maximum Power 47 W BTL x 4-ch Audio Power IC | Toshiba Semiconductor |
| TB2901HQ | 4-ch Audio Power IC | Toshiba Semiconductor |
| 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 |