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TA8263BH
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8263BH
Max Power 43 W BTL x 4 ch Audio Power IC
The TA8263BH is 4 ch BTL audio power amplifier for car audio application. This IC can generate more high power: POUTMAX = 43 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, output offset voltage and over voltage input mode. Additionally, the AUX amplifier and various kind of protector for car audio use are built-in. Weight: 7.7 g (typ.)
Features
* High power : POUTMAX (1) = 43 W (typ.) (VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 ) : POUTMAX (2) = 40 W (typ.) (VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 ) : POUT (1) = 28 W (typ.) (VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 ) : POUT (2) = 24 W (typ.) (VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 ) * * * * * * * * 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 ) Low noise: VNO = 0.10 mVrms (typ.) (VCC = 13.2 V, Rg = 0 , GV = 26dB, BW = 20 Hz~20 kHz) Built-in stand-by switch function (pin 4) Built-in muting function (pin 22) Built-in AUX amplifier from single input to 4 channels output (pin 16) Built-in various protection circuit : Thermal shut down, over voltage, out to GND, out to VCC, out to out short Operating supply voltage: VCC (opr) = 9~18 V
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Block Diagram
C5
1 TAB
20 VCC1
6 VCC2 OUT1 (+) 9
C1
11
IN1 PW-GND1 8 OUT1 (-) 7 RL
OUT2 (+) 12 IN2
5 RL
C1
PW-GND2 2 OUT2 (-) 3
C6
16
AUX IN
OUT3 (+) 15 IN3
17 RL
C1
PW-GND3 18 OUT3 (-) 19
OUT4 (+) 14 IN4
21 RL
C1
PW-GND4 24 OUT4 (-) 23
PRE-GND
13 RIP 10 C2 DIAGNOSIS STBY MUTE OUT 4 25 22 R2 C7 R1 C4
: PRE-GND : PW-GND
C3
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Caution and Application Method
(Description is made only on the single channel.) 1. Voltage Gain Adjustment
This IC has no NF (negative feedback) terminals. Therefore, the voltage gain can't adjusted, but it makes the device a space and total costs saver.
Amp. 2A Amp. 1 Input
Amp. 2B
Figure 1
Block Diagram
The voltage gain of Amp.1 : GV1 = 0 dB The voltage gain of Amp.2A, B : GV2 = 20 dB The voltage gain of BLT Connection : GV (BTL) = 6 dB Therefore, the total voltage gain is decided by expression below. GV = GV1 + GV2 + GV (BTL) = 0 + 20 + 6 = 26 dB
2. Stand-by SW Function (pin 4)
By means of controlling pin 4 (stand-by terminal) to high and low, the power supply can be set to ON and OFF. The threshold voltage of pin 4 is set at about 3VBE (typ.), and the power supply current is about 2 mA (typ.) at the stand-by state.
VCC ON Power OFF 4 10 kW 2 VBE to BIAS CUTTING CIRCUIT
Control Voltage of pin 4: VSB
Stand-by ON OFF Power OFF ON VSB (V) 0~1.5 3~VCC
Figure 2 With pin 4 set to High, Power is turned ON
Adjustage of Stand-by SW
(1) (2) Since VCC can directly be controlled to ON or OFF by the microcomputer, the switching relay can be omitted. Since the control current is microscopic, the switching relay of small current capacity is satisfactory for switching
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Large current capacity switch BATTERY RELAY BATTERY
VCC
VCC - Conventional Method -
FROM MICROCOMPUTER
Small current capacity switch BATTERY
DIRECTLY FROM MICROCOMPUTER BATTERY
Stand-By VCC
Stand-By VCC - Stand-by Switch Method -
Figure 3
3. Muting Function (pin 22)
By means of controlling pin 22 less than 0.5 V, it can make the audio muting condition. The muting time constant is decided by R1 and C4 and these parts is related the pop noise at power ON/OFF. The series resistance; R1 must be set up less than 10 kW to get enough muting attenuation. The muting function have to be controlled by a transistor, FET and microcontroller port which has IMUTE > 250 mA ability. Pin 22 terminal voltage has the temperature characteristics of 4.6 V (low temperature) to 3.2 V (high temperature). Therefore, it is need to design with attention as using the microcontroller of which operating voltage is less than 5 V. Terminal 22 may not be pulled up and shall be controlled by OPEN/LOW. When it is obliged to do, it must be pulled up via diode, because it has to defend flowing reverse current to internal circuit of pin 22.
ATT - VMUTE
20
I (100 mA) IMUTE (OFF) 22 C4
R1
A
(dB)
10 kW 0
5 kW
Mute attenuation ATT
IMUTE VMUTE
-20 -40 -60 -80 -100 0 0.4 0.8 1 1.2 1.6 VCC = 13.2 V Po = 10 W PL = 4 W f = 1 kHz 2 2.4 2.8 3

I (100 mA) IMUTE (OFF) 22 C4
R1 IMUTE VMUTE
Point A voltage: VMUTE
(V)
Figure 4
Muting Function
Figure 5
Mute Attenuation - VMUTE (V) 2002-02-13
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TA8263BH
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 m-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 OUT (+)
OUT (-) AUX AMP m-COM AUX-IN 16
-20dB
Figure 6
5.
AUX Input
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) or (Q2) 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 OFFSET VOLTAGE DETECTOR OUTPUT SHORT PROTECTOR OVER VOLTAGE PROTECTOR
5 kW
25
Q2
5V
Q1 GND t Q1 is turned on Q2 is turned on
pin 25: Open collector output (active low)
Figure 7
5.1
Self Diagnosis Output
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 m-COM LED/LCD ALARM (Flashing) (Announcement from a speaker.) (Relay OFF)
25
REGULATOR OFF MEMORY (Count and record)
Figure 8
5.2 In Case of Shorting Output to Output
Application 1
NPN transistor (Q1) is turned on and off in response to the input signal voltage.
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5.3 In Case of Appearing Output Offset Voltage by Generating a Large Leakage Current on the Input Capacitor etc.
NPN transistor (Q2) is turned on while the inverted output voltage level become less than the threshold level of output offset voltage detector.
V
DC voltage of (+) Amp (at leak) VCC/2 (normal DC voltage)
Vref
Leak or short t Elec. Vol. Vref/2 Vbias 25 A 5V
DC voltage of (-) Amp (at leak) Offset voltage (at leak)
L.P.F. B
To CPU
*: It is possible to detect the abnormal output offset which is appeared by the large leakage of the input capacitor at Vref/2 > Vbias (about 1.4 V)
Figure 9
Application and Detection Mechanism
(-) Amp output
VCC/2 Threshold level
GND
t
Voltage of point (A)
GND
t
Voltage of point (B)
GND
t
Figure 10 Wave Form
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Maximum Ratings (Ta = 25C)
Characteristics Peak supply voltage (0.2 s) DC supply voltage Operation supply voltage Output current (peak) Power dissipation Operation temperature Storage temperature Symbol VCC (surge) VCC (DC) VCC (opr) IO (peak) PD (Note1) Topr Tstg Rating 50 25 18 9 125 -40~85 -55~150 Unit V V V A W C C
Note1: Package thermal resistance qj-T = 1C/W (typ.) (Ta = 25C, with infinite heat sink)
Electrical Characteristics
Characteristics Quiescent current
(unless otherwise specified VCC = 13.2 V, f = 1 kHz, RL = 4 W, Ta = 25C)
Symbol ICCQ POUT MAX (1) Output power POUT MAX (2) POUT (1) POUT (2) Total harmonic distortion Voltage gain Voltage gain ratio Output noise voltage THD GV DGV VNO (1) VNO (2) Ripple rejection ratio Cross talk Output offset voltage Input resistance Stand-by current Stand-by control voltage R.R. C.T. VOFFSET RIN ISB VSB H VSB L Mute control voltage (Note2) VM H VM L Mute attenuation ATT M Test Circuit 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 VIN = 0 VCC = 14.4 V, max Power VCC = 13.7 V, max Power VCC = 14.4 V, THD = 10% THD = 10% POUT = 5 W VOUT = 0.775 Vrms (0dBm) VOUT = 0.775 Vrms (0dBm) Rg = 0 W, DIN45405 Rg = 0 W, BW = 20 Hz~20 kHz frip = 100 Hz, Rg = 620 W Vrip = 0.775 Vrms (0dBm) Rg = 620 W VOUT = 0.775 Vrms (0dBm) 3/4 3/4 Stand-by condition Power: ON Power: OFF Mute: OFF Mute: ON, R1 = 10 kW Mute: ON, VOUT = 7.75 Vrms (20dBm) at Mute: OFF. 0 80 Test Condition Min 3/4 3/4 3/4 3/4 22 3/4 24 -1.0 3/4 3/4 40 3/4 -150 3/4 3/4 3.0 0 Typ. 200 43 40 28 24 0.02 26 0 0.12 0.10 50 65 0 90 2 3/4 3/4 Open 3/4 90 0.5 3/4 Max 400 3/4 3/4 3/4 3/4 0.2 28 dB 1.0 3/4 0.35 3/4 3/4 +150 3/4 10 VCC 1.5 3/4 V dB dB dB mV kW mA V mVrms % W Unit mA
Note2: Muting function have to be controlled by open and low logic, which logic is a transistor, FET and m-COM port of IMUTE > 250 mA ability. This means than the mute control terminal : pin 22 must not be pulled-up.
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Test Circuit
3900 mF
1 TAB
20 VCC1
6 VCC2 OUT1 (+) 9
0.22 mF C1
11
IN1 PW-GND1 8 OUT1 (-) 7 RL
OUT2 (+) 0.22 mF C1 12 IN2
5 RL
PW-GND2 2 OUT2 (-) 3
0.22 mF C6
16
AUX IN
OUT3 (+) 0.22 mF C1 15 IN3
17 RL
PW-GND3 18 OUT3 (-) 19
OUT4 (+) 0.22 mF C1 14 IN4
21 RL
PW-GND4 24 OUT4 (-) 23
PRE-GND
13 RIP 10 10 mF C2 R2 STBY 4 10 kW DIAGNOSIS MUTE OUT 25 22 C7 0.047 mF 10 kW C4 1 mF R1
: PRE-GND : PW-GND
C3 0.1 mF
C5
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T.H.D - POUT
100 50 30 VCC = 13.2 V RL = 4 W 1 ch drive 100 f = 1 kHz RL = 4 W 1 ch drive
T.H.D - POUT
13.2 V
(%)
10 5 3
(%) T.H.D
10 5 3 VCC = 9.0 V 1 0.5 0.3 16.0 V 0.1 0.05 0.03
Total harmonic distortion
T.H.D
f = 10 kHz 0.5 0.3
0.1 1 kHz 0.05 0.03 100 Hz 0.01 0.1 0.3 0.5 1 3 5 10 30 50 100
Total harmonic distortion
0.01 0.1
0.3 0.5
1
3
5
10
30 50
100
Output power
POUT
(W)
Output power
POUT
(W)
ICCQ - VCC
400 10
T.H.D - f
VCC = 13.2 V RL = 4 W POUT = 5 W
(mA)
300
ICCQ
T.H.D
1
200
Total harmonic distortion
Quiescent current
(%)
0.1 0.01 10
RL =
100
0 0 10 20 30
100
1k
10 k
100 k
Power supply voltage VCC
(V)
Frequency f
(Hz)
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VNO - Rg
300 0
R.R. - f
VCC = 13.2 V
(mVrms)
Ripple rejection ratio R.R. (dB)
250
VCC = 13.2 V RL = 4 W BW = ~20 k
-10 -20 -30 -40 -50 -60 -70
Vrip = 0.775 Vrms (0dBm) Rg = 620 W RL = 4 W
VNO Output noise voltage
200
150
100
50
0 0 100 1k 10 k 100 k
0
100
1k
10 k
100 k
Singnal source resistance
Rg
(9)
Frequency f
(Hz)
C.T. - f (OUT1)
0 VCC = 13.2 V -10 VOUT = 0.775 Vrms (0dBm) -10 Rg = 620 W -20 -30 -40 OUT1 (R) OUT3, 4 -50 OUT1 (R) OUT2 -60 -70 OUT1 (R) OUT4 OUT1 (R) OUT2, 3 -60 -70 RL = 4 W 0 VCC = 13.2 V
C.T. - f (OUT2)
VOUT = 0.775 Vrms (0dBm) Rg = 620 W RL = 4 W
C.T. (dB)
C.T. (dB) Cross talk
-20 -30 -40 -50
Cross talk
OUT2 (R) OUT3, 4
OUT2 (R) OUT3, 4 OUT2 (R) OUT1
0
100
1k
10 k
100 k
0
100
1k
10 k
100 k
Frequency f
(Hz)
Frequency f
(Hz)
C.T. - f (OUT3)
0 VCC = 13.2 V -10 VOUT = 0.775 Vrms (0dBm) -10 Rg = 620 W -20 -30 -40 -50 -60 -70 OUT3 (R) OUT1, 2 OUT3 (R) OUT4 OUT3 (R) OUT1, 2 OUT3 (R) OUT4 RL = 4 W 0 VCC = 13.2 V
C.T. - f (OUT4)
VOUT = 0.775 Vrms (0dBm) Rg = 620 W RL = 4 W
C.T. (dB)
C.T. (dB) Cross talk
-20 -30 -40
Cross talk
OUT4 (R) OUT1, 2 -50 -60 -70 OUT4 (R) OUT3
0
100
1k
10 k
100 k
0
100
1k
10 k
100 k
Frequency f
(Hz)
Frequency f
(Hz)
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GV - f
40 35 70 60
PD - POUT
(dB)
30 25
(W)
GV
Power dissipation
PD
50 40 13.2 V 30 20 9V 10 0
16 V
Voltage gain
20 15 10 5 0 0 100 1k 10 k 100 k
VCC = 13.2 V RL = 4 W VOUT = 0.775 Vrms (0dBm)
f = 1 kHz RL = 4 W
0
5
10
15
20
25
Frequency f
(Hz)
Output power
POUT/ch (C)
PD MAX - Ta
(W)
120 INFINITE HEAT SINK RqJC = 1C/W 100 HEAT SINK (RqHS = 3.5C/W) RqJC + RqHS = 4.5C/W 80 60 NO HEAT SINK RqJA = 39C/W
Allowable power dissipation PD MAX
40
20 0 0 25 50 75
100
125
150
Ambient temperature Ta (C)
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Package Dimensions
Weight: 7.7 g (typ.)
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RESTRICTIONS ON PRODUCT USE
000707EBF
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * This product generates heat during normal operation. However, substandard performance or malfunction may cause the product and its peripherals to reach abnormally high temperatures. The product is often the final stage (the external output stage) of a circuit. Substandard performance or malfunction of the destination device to which the circuit supplies output may cause damage to the circuit or to the product. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice.
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