TOSHIBA TA8246AHQ

TA8246AHQ
TOSHIBA Bipolar Linear Integrated Circuit
Silicon Monolithic
TA8246AHQ
Dual Audio Power Amplifier 6 W × 2 Ch
TA8246AHQ is dual power amplifier for Consumer applications.
This IC provides an output power of 6 watts per channel
(at VCC = 20 V, f = 1 kHz, THD = 10%, RL = 8 Ω).
It is suitable for power amplifier of TV and home Stereo.
Features
•
: High output power: Pout = 6 W (Typ.)
•
Built-in audio muting circuit.
•
NF terminal capacitor less
(VCC = 20 V, RL = 8 Ω, f = 1 kHz, THD = 10%)
:
•
Weight: 4.04 g (typ.)
Fixed gain (Gv = 34dB), needless external capacitor.
Protectors
:
Thermal shut down protection circuit, over voltage
protection circuit
•
Low poping noise
•
High THD ratio
•
High input dynamic range
•
Available for using same PCB layout with 3 channel IC: TA8256BHQ
•
Operating supply voltage range
:
VCC (opr) = 10~30 V (Ta = 25°C)
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TA8246AHQ
Block Diagram
VCC
6
RIPPLE FILTER
9
Amp 1
OUT1
350 Ω
8
RL
20 kΩ
3 Pre-GND
V18
2.1 V
4
30 kΩ
4 kΩ
INPUT1
PW-GND 10
RL
20 kΩ
350 Ω
Amp 2
4 kΩ
2
OUT2
12
30 kΩ
INPUT2
5
7
MUTE SW
2
MUTE T.C.
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TA8246AHQ
Terminal Explanation
Terminal
No.
Symbol
Function
Equivalent Circuit
VCC
2
IN2
30 kΩ
Input
20 kΩ
OUT
350 Ω
4 kΩ
2/4
NF へ
4
IN1
GND
3
Pre-GND
⎯
GND terminal
VCC
5
MUTE SW
7
7
to MUTE
Amplifier
10 kΩ
MUTE control terminal
5
MUTE T.C.
10 kΩ
GND
6
R/F
to POP-NOIZE
preventive circuit
Ripple filter
to Bias circuit
5.1 kΩ
6
VCC
8
OUT1
Output
2.2 kΩ
12
8/12
OUT2
GND
9
VCC
Supply voltage terminal
⎯
10
PW-GND
GND terminal
⎯
1, 11: NC
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TA8246AHQ
Cautions
This IC is not proof enough against a strong E-M field by CRT which may cause malfunction such as leak.
Please set the IC keeping the distance from CRT.
Maximum Ratings (Ta = 25°C)
Characteristic
Supply voltage
Output current (peak/ch)
Power dissipation
Symbol
Rating
Unit
VCC
30
V
IO (peak)
2
A
PD (Note)
25
W
Operating temperature
Topr
−20~75
°C
Storage temperature
Tstg
−55~150
°C
Note: Derated above Ta = 25°C in the proportion of 200 mW/°C.
Electrical Characteristics
(Unless otherwise specified, VCC = 20 V, RL = 8 Ω, Rg = 620 Ω, f = 1 kHz, Ta = 25°C)
Symbol
Test
Circuit
ICCQ
⎯
Vin = 0
Pout (1)
⎯
THD = 10%
5
6
⎯
Pout (2)
⎯
THD = 1%
⎯
4.5
⎯
THD (1)
⎯
Pout = 2 W
⎯
0.04
0.2
THD (2)
⎯
Pout = 2 W, f = 10 kHz,
⎯
0.1
0.6
Voltage gain
Gv
⎯
Vout = 0.775 Vrms
32.5
34
35.5
dB
Input resistance
RIN
⎯
⎯
34
⎯
kΩ
Ripple rejection ratio
R.R.
⎯
f = 100 Hz
−40
−47
⎯
dB
Output noise voltage
Vno
⎯
Rg = 10 kΩ,
BW = 20 Hz~20 kHz
⎯
0.14
0.3
mVrms
Cross talk
C.T.
⎯
Rg = 10 kΩ,
Vout = 0.775 Vrms
⎯
−60
⎯
dB
Vth (ON)
⎯
MUTE ON
3.1
⎯
VCC
Vth (OFF)
⎯
MUTE OFF
0
⎯
2.5
ATT
⎯
Vout = 0.775 Vrms → Mute
−52
−60
⎯
Characteristic
Quiescent current
Output power
Total harmonic distortion
Mute control voltage
Mute attenuation level
Test Condition
⎯
4
Min.
Typ.
Max
Unit
50
85
130
mA
W
%
V
dB
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TA8246AHQ
6
RIPPLE FILTER
9
VCC
1000 µF
100 µF
Test Circuit
4 kΩ
1000 µF
20 kΩ
3 Pre-GND
V18
2.2 Ω
20 kΩ
350 Ω
Amp 2
4 kΩ
OUT2
5
12
1000 µF
7
MUTE SW
5
10 µF
1.0 µF
2
RL
30 kΩ
INPUT2
RL
PW-GND 10
0.10 µF
350 Ω
0.10 µF
OUT1
8
2.2 Ω
Amp 1
2.1 V
1.0 µF
4
30 kΩ
INPUT1
MUTE T.C.
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TA8246AHQ
ICCQ, Vout (DC) – VCC
THD – f
20
10
(%)
200
16
Vout
120
12
ICCQ
80
8
4
40
Total harmonic distortion THD
160
Output voltage Vout (DC) (V)
Quiescent current
ICCQ (mA)
VIN = 0
VCC = 20 V
5 Pout = 2 W
3 RL = 8 Ω
1
0.5
0.3
0.1
0.05
0.03
0.01
30
0
0
4
8
12
16
20
Supply voltage
24
VCC
28
32
100
0
36
300
30 k
100 k
(Hz)
THD – Pout
30
VCC = 20 V
f = 1 kHz
RL = 8 Ω
RL = 8 Ω
10
5
5
(%)
10
3
Total harmonic distortion THD
(%)
10 k
(V)
THD – Pout
Total harmonic distortion THD
3k
Frequency f
30
1
0.5
0.3
0.1
1k
f = 10 kHz
0.05
3
VCC = 12 V
20
28
1
0.5
0.3
0.1
0.05
f = 1 kHz
0.03
0.03
f = 100 Hz
0.01
0.01
0.3
0.5
1
Output Power
3
5
Pout
10
30
0.3
(W)
0.5
1
Output Power
6
3
5
Pout
10
30
(W)
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TA8246AHQ
Pout – VCC
Gv – f
70
f = 1 kHz
18 RL = 8 Ω
THD = 10%
16
Gv (dB)
VCC = 20 V
60 Vout = 0.775 Vrms
RL = 8 Ω
14
12
10
Voltage gain
Output power Pout
(W)
20
8
6
50
40
30
20
4
10
2
0
0
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Supply voltage
VCC
30
100
(V)
300
R.R. – f
30 k
100 k
30 k
100 k
30 k
100 k
(Hz)
C.T. – f
VCC = 20 V
RL = 8 Ω
−10 R = 0
g
Vripple = 0.775 Vrms
−20
Cross talk C.T. (dB)
(dB)
R.R.
Ripple rejection ratio
10 k
0
−30
−40
−50
−60
VCC = 20 V
RL = 8 Ω
−10 V
out = 0.775 Vrms
Rg = 10 kΩ
−20
−30
−40
−50
−60
−70
−70
30
100
300
1k
3k
Frequency f
10 k
30 k
100 k
30
100
(Hz)
300
1k
3k
Frequency f
Vno – Rg
10 k
(Hz)
R.R. – Rg
1.6
0
R.R.
(dB)
VCC = 20 V
1.4 RL = 8 Ω
BW = 20 Hz~20 kHz
1.2
1.0
Ripple rejection ratio
(mVrms)
3k
Frequency f
0
Output noise voltage Vno
1k
0.8
0.6
0.4
0.2
VCC = 20 V
RL = 8 Ω
−10 f
ripple = 100 Hz
Vripple = 0.775 Vrms
−20
−30
−40
−50
−60
−70
0
30
100
300
1k
3k
10 k
30 k
100 k
30
Signal source resistance Rg (Ω)
100
300
1k
3k
10 k
Signal source resistance Rg (Ω)
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TA8246AHQ
C.T. – Rg
PD – Pout
18
(W)
VCC = 20 V
f = 1 kHz
−10 R = 8 Ω
L
Vout = 0.775 Vrms
−20
Power dissipation PD
Cross talk C.T. (dB)
0
−30
−40
−50
Dual
16 f = 1 kHz
RL = 8 Ω
14
12 V
CC = 28 V
THD = 1%
10
10%
8
20 V
6
4
12 V
−60
2
−70
30
100
300
1k
3k
10 k
30 k
0
0
100 k
2
4
Signal source resistance Rg (Ω)
6
8
10
Output power
Pout
f = 1 kHz
160
RL = 8 Ω
16
14
12
VCC = 20 V
VIN = 0
140
120
100
10
8
6
4
80
60
40
20
2
0
8
12
16
20
Supply voltage
24
VCC
28
0
−40
32
−20
0
Vno – Ta
(%)
Total harmonic distortion THD
(mVrms)
Rg = 10 kΩ
0.6
0.5
0.4
0.3
0.2
0.1
0
−40
−20
0
20
40
40
60
80
100
80
100
THD – Ta
10
VCC = 20 V
0.7
20
Ambient temperature Ta (°C)
(V)
0.8
Output noise voltage Vno
16
180
ICCQ (mA)
18
14
ICCQ – Ta
20
Quiescent current
Maximum power dissipation PD MAX
(W)
PD MAX – VCC
12
(W)
60
80
5
3
Ambient temperature Ta (°C)
f = 1 kHz
Pout = 2 W
Dual
1
0.5
0.3
0.1
0.05
0.03
0.01
−40
100
VCC = 20 V
RL = 8 Ω
−20
0
20
40
60
Ambient temperature Ta (°C)
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TA8246AHQ
Allowable power dissipation PD MAX
(W)
PD MAX – Ta
30
1: Infinite heat sink
2: 4.1°C/W heat sink
1
25
3: 9.5°C/W heat sink
20
2
15
3
10
5
0
0
25
50
75
100
125
150
175
200
Ambient temperature Ta (°C)
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TA8246AHQ
Package Dimensions
Weight: 4.04 g (typ.)
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TA8246AHQ
About solderability, following conditions were confirmed
• Solderability
(1) Use of Sn-63Pb solder Bath
· solder bath temperature = 230°C
· dipping time = 5 seconds
· the number of times = once
· use of R-type flux
(2) Use of Sn-3.0Ag-0.5Cu solder Bath
· solder bath temperature = 245°C
· dipping time = 5 seconds
· the number of times = once
· use of R-type flux
RESTRICTIONS ON PRODUCT USE
030619EBF
• The information contained herein is subject to change without notice.
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of
TOSHIBA or others.
• 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.
• The products described in this document are subject to the foreign exchange and foreign trade laws.
• TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced
and sold, under any law and regulations.
• 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.
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