TDA2050-TB5-T [UTC]
32W HI-FI AUDIO POWER AMPLIFIER; 32W高保真音频功率放大器
| 型号： | TDA2050-TB5-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | 32W HI-FI AUDIO POWER AMPLIFIER |
| 文件： | 总7页 (文件大小：261K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
TDA2050
LINEAR INTEGRATED CIRCUIT
32W HI-FI AUDIO POWER
AMPLIFIER
ꢀ
DESCRIPTION
The UTC TDA2050 is a monolithic integrated circuit with high
power capability and is designed to use as an class AB audio
amplifier. It can deliver typically 50W music power into 4Ω load
1
over 1 sec at VS=22.5V, f = 1KHz.
TO-220B
The device is most suitable for both Hi-Fi and high class TV sets
on the strength of its high supply voltage and very low harmonic and
crossover distortion.
ꢀ
FEATURES
* High output power (50W Music Power IEC 268.3 Rules)
* High operating supply voltage (50V)
* Single or split supply operations
* Very low distortion
*Pb-free plating product number: TDA2050L
* Short circuit protection (OUT to GND)
* Thermal shutdown
ꢀ ORDERING INFORMATION
Ordering Number
Package
Packing
Tube
Normal
Lead Free Plating
TDA2050-TB5-T TDA2050L-TB5-T TO-220B
ꢀ
PIN CONFIGURATION
5
4
3
2
1
+VS
OUTPUT
-VS
INVERTING INPUT
NON INVERTING INPUT
*TAB CONNECTED TO PIN 3
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Copyright © 2005 Unisonic Technologies Co., LTD
QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
ꢀ
BLOCK DIAGRAM
5
SHORT
CIRC.
PROTECT.
4
VREF
SHORT
CIRC.
PROTECT.
3
1
2
UNISONIC TECHNOLOGIES CO., LTD
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QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
ꢀ
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VS
RATINGS
UNIT
V
Supply Voltage
Input Voltage
±25
VIN
VS
±15
℃
℃
Differential Input Voltage
VIN(DIFF)
IOUT
Output Peak Current (internally limited)
Power Dissipation TC= 75℃
5
PD
25
W
℃
℃
Junction Temperature
Storage Temperature
TJ
+125
-40 ~ +150
TSTG
Note:1.Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2.The device is guaranteed to meet performance specification within 0℃~70℃ operating temperature range
and assured by design from –40℃~85℃.
ꢀ
THERMAL DATA
PARAMETER
Thermal Resistance junction-case
SYMBOL
θJC
RATINGS
3
UNIT
℃/W
ꢀ
ELECTRICAL CHARACTERISTICS
(Refer to the Test Circuit, VS = ±18V, Ta = 25℃, f = 1 kHz, unless otherwise specified.)
PARAMETER
Supply Voltage
SYMBOL
VS
TEST CONDITIONS
MIN TYP MAX UNIT
±4.5
±25
50
90
V
VS = ±4.5V
VS = ±25V
VS = ±22V
18
21
Quiescent Drain Current
ID
mA
Input Bias Current
Input Offset Voltage
Input Offset Current
IB
0.4
0.5
µA
mV
nA
VIN(OS) VS = ±22V
±15
±200
IIN(OS)
VS = ±22V
RL = 4Ω
RL = 8Ω
RL = 8Ω, VS = ±22V
RL = 4Ω
RL = 8Ω
RL = 8Ω, VS = ±22V
D = 10%, T = 1s, VS = ±22.5V, RL = 4Ω
RL = 4Ω
24
22
27
18
25
35
22
32
50
D = 0.5%
RMS Output Power
PO
W
%
D = 10%
Music Power IEC268.3 RULES
f = 1kHz, PO = 0.1 ~ 24W
f = 100Hz ~ 10kHz, PO = 0.1 ~ 18W
RL = 8Ω, VS = ±22V
f = 1kHz, PO = 0.1 ~ 20W
f = 100Hz ~ 10kHz, PO = 0.1 ~ 15W
0.03
0.02
0.5
0.5
Total Harmonic Distortion
THD
0.5
31
Slew Rate
SR
GV
GV
BW
5
8
V/µs
dB
Open Loop Voltage Gain
Closed Loop Voltage Gain
Power Bandwidth (-3dB)
80
30
30.5
dB
RL = 4Ω, VIN= 200mV
Curve A
B = 22Hz ~ 22kHz
20 ~ 80000
Hz
4
5
Total Input Noise
eN
µV
10
Input Resistance (pin 1)
Supply Voltage Rejection
RIN
500
kΩ
SVR
RS = 22KΩ, f =100Hz, VRIPPLE =0.5Vrms
PO = 28W, RL = 4Ω
45
65
67
dB
Efficiency
η
%
PO = 25W, RL = 8Ω, VS = ±22V
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QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL APPLICATION CIRCUIT
FOR SPLIT SUPPLY APPLICATION SUGGESTIONS
+VS
C5
220μF
C3
100nF
C1
22μF
5
1
+
VIN
4
UTC
TDA2050
R1
22kΩ
2
-
R4
R3
22kΩ
2.2Ω
RL
3
C7
0.47μF
R2
-VS
680Ω
C4
100nF
C2
22μF
C6
220μF
Figure.1 Split Supply Typical Application Circuit
The following table demonstrates the recommended values of the external components are those shown
on above circuit. Different values can be used.
RECOMMENDED VALUE
LARGER
COMPONENT
R1
PURPOSE
TYPICAL
SMALLER
Increase of Input Impedance Decrease of Input
Impedance
Input Impedance
22kΩ
R2
R3
R4
C1
Feedback Resistor
680Ω
22kΩ
2.2Ω
1µF
Decrease of Gain*
Increase of Gain
Increase of Gain
Decrease of Gain*
Frequency Stability
Input Decoupling DC
Inverting Input DC
Decoupling
Danger of Oscillations
Higher Low-frequency cut-off
Higher Low-frequency cut-off
Increase of Switch ON/OFF
Noise
C2
22µF
C3, C4
C5, C6
C7
Supply Voltage Bypass
Supply Voltage Bypass
Frequency Stability
100nF
220µF
0.47µF
Danger of Oscillations
Danger of Oscillations
Danger of Oscillations
* The gain must be higher than 24dB
UNISONIC TECHNOLOGIES CO., LTD
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QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL APPLICATION CIRCUIT(CONT.)
FOR SINGLE SUPPLY APPLICATION SUGGESTIONS
+VS
C3
1000μF
C5
100nF
R1
22kΩ
C1
2.2μF
5
C7
1000μF
1
2
IN
+
4
UTC
TDA2050
R3
22kΩ
-
R6
2.2Ω
R5
22kΩ
3
R
L
C6
0.47μF
C4
22μF
R2
22kΩ
R4
680Ω
C2
1000μF
Figure.2 Single Supply Typical Application Circuit
The following table demonstrates the recommended values of the external components are those shown
on above circuit. Different values can be used.
RECOMMENDED VALUE
COMPONENT
PURPOSE
TYPICAL
LARGER
SMALLER
R1, R2, R3 Biasing Resistor
22kΩ
22kΩ
680Ω
2.2Ω
R4
R5
R6
C1
Feedback Resistor
Increase of Gain
Decrease of Gain*
Increase of Gain
Decrease of Gain*
Frequency Stability
Input Decoupling DC
Supply Voltage
Rejection
Danger of Oscillations
2.2µF
Higher Low-frequency cut-off
Worse Turn-off Transient
Worse Turn-on Delay
C2
C3
C4
100µF
Danger of Oscillations
Worse of Turn-off Transient
Supply Voltage Bypass 1000µF
Inverting Input DC
22µF
Increase of Switch ON/OFF
Higher Low-frequency cut-off
Decoupling
C5
C6
C7
Supply Voltage Bypass
Frequency Stability
100nF
Danger of Oscillations
0.47µF
Danger of Oscillations
Output DC Decoupling 1000µF
Higher Low-frequency cut-off
* The gain must be higher than 24dB
NOTE: If the supply voltage is lower than 40V and the load is 8Ω(or more), a lower value of C2(i.e. 22µF) can be
used. C7 can be larger than 1000µF only if the supply voltage does not exceed 40V.
UNISONIC TECHNOLOGIES CO., LTD
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QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS (Split Supply Test Circuit, unless otherwise specified)
Output Power vs. Supply Voltage
Output Power vs. Supply Voltage
40
35
30
25
20
15
10
40
35
30
25
20
15
10
RL = 8Ω
f = 1kHz
RL = 4Ω
f = 1kHz
THD = 10%
THD= 10%
+
THD = 0.5%
THD= 0.5%
5
0
5
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
VS (V)
VS (V)
Total Power Dissipation and Efficiency
vs. Output Power
Quiescent Current vs. Supply Voltage
40
35
30
25
20
15
10
60
55
50
45
40
35
30
VS = 18V
RL = 4Ω
f = 1kHz
RL = 4Ω
80
70
60
50
m
P
D
40
30
20
10
0
25
20
5
0
0
5
10
15
VS (V)
20
25
30
0
5
10 15 20 25 30 35 40
O (W)
P
Total Power Dissipation and Efficiency
vs. Output Power
VS = 22V
RL = 8Ω
f = 1kHz
28
24
20
16
12
8
80
70
60
50
m
PD
40
30
20
10
0
4
0
0
5
10 15 20 25 30 35
O (W)
P
UNISONIC TECHNOLOGIES CO., LTD
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QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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QW-R107-036,A
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