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PDF TA8266HQ Data sheet ( Hoja de datos )
| Número de pieza | TA8266HQ | |
| Descripción | Max Power 35 W BTL X 4 ch Audio Power IC | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TA8266HQ (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8266HQ
TA8266HQ
Max Power 35 W BTL × 4 ch Audio Power IC
The TA8266HQ is 4 ch BTL audio power amplifier for car audio
application.
This IC can generate more high power: POUTMAX = 35 W as it
is included the pure complementary PNP and NPN transistor
output stage.
It is designed low distortion ratio for 4 ch BTL audio power
amplifier, built-in stand-by function, muting function, and
diagnosis circuit which can detect output to VCC/GND short and
over voltage input mode.
Additionally, the AUX amplifier and various kind of protector
for car audio use is built-in.
Weight: 7.7 g (typ.)
Features
• High power : POUTMAX (1) = 35 W (typ.)
(VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 Ω)
: POUTMAX (2) = 31 W (typ.)
(VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 Ω)
: POUT (1) = 23 W (typ.)
(VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
: POUT (2) = 20 W (typ.)
(VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 Ω)
• Built-in diagnosis circuit (pin 25)
• Low distortion ratio: THD = 0.02% (typ.)
(VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 Ω)
• Low noise: VNO = 0.18 mVrms (typ.)
(VCC = 13.2 V, Rg = 0 Ω, GV = 34dB, BW = 20 Hz~20 kHz)
• Built-in stand-by switch function (pin 4)
•www.DataSheet4U.net Built-in muting function (pin 22)
• Built-in AUX amplifier from single input to 2 channels output (pin 16)
• Built-in various protection circuit
: Thermal shut down, over voltage, out to GND, out to VCC, out to out short, speaker burned
• Operating supply voltage: VCC (opr) = 9~18 V
Note 1: Install the product correctly. Otherwise, it may result in break down, damage and/or degradation to the
product or equipment.
Note 2: 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.
1 2006-04-28
1 page  
TA8266HQ
4. AUX Input (pin 16)
The pin 16 is for input terminal of AUX
amplifier.
The total gain is 0dB by using of AUX amplifier.
Therefore, the µ-COM can directly drive the
AUX amplifier.
BEEP sound or voice synthesizer signal can be
input to pin 16 directly.
When AUX function is not used, this pin must be
connected to PRE-GND (pin 13) via a capacitor.
20dB AMP.
IN
µ-COM
AUX-IN
16
AUX AMP
−20dB
OUT (+)
OUT (−)
Figure 6 AUX Input
5. Diagnosis Output (pin 25)
This diagnosis output terminal of pin 25 has open collector output structure on chip as shown in Figure 7.
In case diagnosis circuit that detect unusual case is operated, NPN transistor (Q1) is turned on.
It is possible to protect all the system of apparatus as well as power IC protection.
In case of being unused this function, use this IC as open-connection on pin 25.
5V
OUTPUT SHORT
PROTECTOR
OVER VOLTAGE
PROTECTOR
25
Q1
5V
GND
t
Q1 is turned on
pin 25: Open collector output (active low)
Figure 7 Self Diagnosis Output
www.DataSheet4U.net
5.1 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
25 µ-COM
LED/LCD (Flashing)
ALARM (Announcement from a speaker.)
REGULATOR → OFF (Relay → OFF)
MEMORY (Count and record)
Figure 8 Application 1
5.2 In Case of Shorting Output to Output
NPN transistor (Q1) is turned on and off in response to the input signal voltage.
5 2006-04-28
5 Page 
300
VCC = 13.2 V
RL = 4 Ω
250 BW = 20 Hz~20 kHz
VNO – Rg
200
150
100
50
0
10 100 1 k 10 k 100 k
Singnal source resistance Rg (Ω)
TA8266HQ
0
VCC = 13.2 V
−10 RL = 4 Ω
Rg = 620 Ω
−20 Vrip = 0dBm
−30
R.R. – f
−40
−50
−60
−70
10
100 1 k 10 k
Frequency f (Hz)
100 k
0
VCC = 13.2 V
−10 RL = 4 Ω
VOUT = 0dBm
−20 Rg = 620 Ω
C.T. – f (OUT1)
−30
−40
−50
OUT1 → OUT2, 3, 4
−60
−70
10
100 1 k 10 k
Frequency f (Hz)
100 k
www.DataSheet4U.net
0
VCC = 13.2 V
−10 RL = 4 Ω
VOUT = 0dBm
−20 Rg = 620 Ω
C.T. – f (OUT3)
−30
−40
−50
−60
−70
10
OUT3 → OUT4
OUT3 → OUT1, 2
100 1 k 10 k
Frequency f (Hz)
100 k
0
VCC = 13.2 V
−10 RL = 4 Ω
VOUT = 0dBm
−20 Rg = 620 Ω
C.T. – f (OUT2)
−30
−40
−50
OUT2 → OUT1, 3, 4
−60
−70
10
100 1 k 10 k
Frequency f (Hz)
100 k
0
VCC = 13.2 V
−10 RL = 4 Ω
VOUT = 0dBm
−20 Rg = 620 Ω
C.T. – f (OUT4)
−30
−40
−50
OUT4 → OUT1, 2, 3
−60
−70
10
100 1 k 10 k
Frequency f (Hz)
100 k
11 2006-04-28
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TA8266HQ.PDF ] | |
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