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Toshiiba - Maximum Power 49W BTL x 4ch Audio Power Amp IC

Numéro de référence TB2941HQ
Description Maximum Power 49W BTL x 4ch Audio Power Amp IC
Fabricant Toshiiba 
Logo Toshiiba 





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TB2941HQ fiche technique
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

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