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PDF TB2922HQ Data sheet ( Hoja de datos )
| Número de pieza | TB2922HQ | |
| Descripción | Dual Audio Power Amplifier | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TB2922HQ (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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TB2922HQ
TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic
TB2922HQ
Dual Audio Power Amplifier
The TB2922HQ is 2ch BTL audio amplifier for TV or home audio
applications.
It includes and the pure complementary P-ch and N-ch DMOS
output stage.
www.DataSheet4UT.choempackage is CPP (Compact Power Package).
It is built-in standby function, muting function various kinds of
protectors.
Weight: 4.04 g (typ.)
Features
• High power output
: POUT (1)= 22 W (typ)
(VCC = 18V, RL = 8 Ω, f = 1 kHz, THD = 10%)
: POUT (2)= 37W (typ)
(VCC = 16V, RL = 4 Ω, f = 1 kHz, THD = 10%)
: POUT (3)= 46W (typ)
(VCC = 26V, RL = 8 Ω, f = 1 kHz, THD = 10%)
: POUTMAX (1)= 72W (typ)
(VCC = 26V, RL = 8 Ω, f = 1 kHz, Ｍax Power)
• Low distortion ratio : THD=0.02％ (typ)
• Low noise
: Vno = 0.16 μVrms (typ)
(VCC = 18V, RL = 8 Ω, Rg = 0 Ω, BW = 20 Hz~20 kHz)
• Low outside parts
• Built-in standby switch function (pin 1)
• Built-in muting function (pin 6)
• Built-in various protection circuits:
Thermal shut down, overvoltage, out to GND, out to VCC, out to out short speaker burned
• Operating supply voltage
: VCC (opr) = 9 to 26 V (RL = 8 Ω)
: VCC (opr) = 9 to 18 V (RL = 4 Ω)
Note 1: Install the device correctly. Otherwise, the device or system may be degraded, damaged or even destroyed.
Note 2:
The protection features are intended to avoid output short-circuits or other abnormal conditions temporarily.
It is not guaranteed that they will prevent the IC from being damaged.
Exposure to conditions beyond the guaranteed operating ranges may not activate the protection features,
resulting in an IC damage due to output short-circuits.
Note 3: If HBM ESD(condition; 100pF/1.5kΩ) of under -1900V is applied to pin 2 or pin 4 in case that pin3 is GND,
this product may break down.
1 2007-02-20
1 page  
TB2922HQ
4. Pop Noise Suppression
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.
5. External Component Constants
Component Recommended
Name
Value
Purpose
Effect
Lower than recommended
value
Higher than recommended
value
C1
0.22 μF
To eliminate DC
Cut-off frequency is
increased
Cut-off frequency is reduced
www.DataSheet4U.com 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
5 2007-02-20
5 Page 
40
30
20
10
www.DataSheet4U.com
0
0
VIN – POUT (ch1)
1 kHz
f = 100 Hz
10 kHz
20 kHz
VCC = 18 V
RL = 8 Ω
No filter
24
6
Input voltage VIN (Vrms)
8
80
RL = ∞
VIN = 0 V
60
ICCQ – VCC
40
20
0
0 5 10 15 20 25 30
Supply voltage VCC (V)
TB2922HQ
VIN – POUT (ch2)
40
1 kHz
f = 100 Hz
10 kHz
30
20 kHz
20
10
VCC = 18 V
RL = 8 Ω
No filter
0
0 24 6 8
Input voltage VIN (Vrms)
30
1
25
20
2
15
3
10
PD MAX – Ta
1: Infinite heat sink
2: 4.1°C/W heat sink
3: 9.5°C/W heat sink
5
0
0 25 50 75 100 125 150 175 200
Ambient temperature Ta (°C)
11 2007-02-20
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet TB2922HQ.PDF ] | |
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