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Número de pieza | TB2939HQ | |
Descripción | 45W X 4-ch BTL Audio Power IC | |
Fabricantes | Toshiba | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TB2939HQ (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
No Preview Available ! TB2939HQ
TOSHIBA Bi-CMOS Linear Integrated Circuit Silicon Monolithic
TB2939HQ(TENTATIVE)
45W × 4-ch BTL Audio Power IC
The TB2939HQ is a four-channel BTL power amplifier for car
audio applications.
This IC has a pure complementary P-ch and N-ch DMOS output
stage, offering maximum output power (POUT MAX) of 45 W.
It includes a standby switch, mute function and various
protection features.
Features
• High output power
• POUT MAX (1) = 45 W (typ.)
(VCC = 15.2 V, f = 1 kHz, JEITA max, RL = 4 Ω)
Weight: 7.7 g (typ.)
• POUT MAX (2) = 41 W (typ.)
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)
• POUT (1) = 24 W (typ.)
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
• POUT (2) = 21 W (typ.)
(VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
• Low THD: 0.007% (typ.) (VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 Ω)
• Low noise: VNO = 60 µVrms (typ.)
(VCC = 13.2 V, Rg = 0 Ω, BW = 20 Hz to 20 kHz, RL = 4 Ω)
• Standby switch (pin 4)
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• Mute function (pin 22)
• Built-in diagnosis circuit include output DC offset detection (pin 25)
• Various protection features
Thermal overload; overvoltage; output short-circuits to GND, VCC and across the load; speaker current limiting
• Operating supply voltage: VCC (opr) = 8.0 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.
1 Rev-1.0 2009-01-21
1 page TB2939HQ
3.1 In Case of Shorting Output to VCC/GND or Over Voltage Power Supplied
NPN transistor (Q1) is turned on.
Threshold of over voltage protection: VCC = 22 V (typ.)
5V
2 µ-COM
LED/LCD (Flashing)
ALARM (Announcement from a speaker.)
REGULATOR OFF (Relay OFF)
MEMORY (Count and record)
Figure 6 Application 1
3.2 In Case of Shorting Output to Output
NPN transistor (Q1) is turned on and off in response to the input signal voltage.
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5 Rev-1.0 2009-01-21
5 Page TB2939HQ
THD – POUT (ch1)
100
VCC = 13.2 V
50 RL = 4 Ω
30 Filter
100 Hz : to 30 kHz
1kHz : 400 Hz to 30 kHz
10
10 kHz : 400 Hz to
5 20 kHz : 400 Hz to
3
1
0.5
0.3
0.1
0.05
0.03
0.01
0.005
0.003
20 kHz
10 kHz
1 kHz
f = 100 Hz
0.001
0.1
0.3 0.5 1
3 5 10
30 50 100
Output power POUT (W)
THD – POUT (ch2)
100
VCC = 13.2 V
50 RL = 4 Ω
30 Filter
100 Hz : to 30 kHz
1kHz : 400 Hz to 30 kHz
10
10 kHz : 400 Hz to
5 20 kHz : 400 Hz to
3
1
0.5
0.3
0.1
0.05
0.03
0.01
0.005
0.003
20 kHz
10 kHz
1 kHz
f = 100 Hz
0.001
0.1
0.3 0.5 1
3 5 10
30 50 100
Output power POUT (W)
THD – POUT (ch3)
100
VCC = 13.2 V
50 RL = 4 Ω
30 Filter
100 Hz : to 30 kHz
1kHz : 400 Hz to 30 kHz
10
10 kHz : 400 Hz to
5 20 kHz : 400 Hz to
3
1
0.5
0.3
0.1
0.05
0.03
0.01
0.005
0.003
20 kHz
10 kHz
1 kHz
f = 100 Hz
0.001
0.1
0.3 0.5 1
3 5 10
30 50 100
Output power POUT (W)
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THD – POUT (ch4)
100
VCC = 13.2 V
50 RL = 4 Ω
30 Filter
100 Hz : to 30 kHz
1kHz : 400 Hz to 30 kHz
10
10 kHz : 400 Hz to
5 20 kHz : 400 Hz to
3
1
0.5
0.3
0.1
0.05
0.03
0.01
0.005
0.003
20 kHz
10 kHz
1 kHz
f = 100 Hz
0.001
0.1
0.3 0.5 1
3 5 10
30 50 100
Output power POUT (W)
11 Rev-1.0 2009-01-21
11 Page |
Páginas | Total 18 Páginas | |
PDF Descargar | [ Datasheet TB2939HQ.PDF ] |
Número de pieza | Descripción | Fabricantes |
TB2939HQ | 45W X 4-ch BTL Audio Power IC | Toshiba |
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