UTC-IC TDA2050-TB5-T

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
over 1 sec at VS=22.5V, f = 1KHz.
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.
1
TO-220B
FEATURES
* High output power (50W Music Power IEC 268.3 Rules)
* High operating supply voltage (50V)
* Single or split supply operations
* Very low distortion
* Short circuit protection (OUT to GND)
* Thermal shutdown
*Pb-free plating product number: TDA2050L
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
TDA2050-TB5-T TDA2050L-TB5-T
Package
Packing
TO-220B
Tube
PIN CONFIGURATION
5
+VS
4
OUTPUT
3
-VS
2
INVERTING INPUT
1
NON INVERTING INPUT
*TAB CONNECTED TO PIN 3
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., LTD
1
QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
5
SHORT
CIRC.
PROTECT.
4
VREF
SHORT
CIRC.
PROTECT.
3
1
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2
2
QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage
Differential Input Voltage
Output Peak Current (internally limited)
Power Dissipation TC= 75℃
SYMBOL
RATINGS
UNIT
VS
±25
V
VIN
VS
℃
VIN(DIFF)
±15
℃
IOUT
5
PD
25
W
℃
Junction Temperature
TJ
+125
℃
Storage Temperature
TSTG
-40 ~ +150
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
SYMBOL
TEST CONDITIONS
Supply Voltage
VS
VS = ±4.5V
Quiescent Drain Current
ID
VS = ±25V
Input Bias Current
IB
VS = ±22V
Input Offset Voltage
VIN(OS) VS = ±22V
Input Offset Current
IIN(OS)
VS = ±22V
RL = 4Ω
RL = 8Ω
D = 0.5%
RL = 8Ω, VS = ±22V
RMS Output Power
PO
RL = 4Ω
RL = 8Ω
D = 10%
RL = 8Ω, VS = ±22V
Music Power IEC268.3 RULES
D = 10%, T = 1s, VS = ±22.5V, RL = 4Ω
RL = 4Ω
f = 1kHz, PO = 0.1 ~ 24W
f = 100Hz ~ 10kHz, PO = 0.1 ~ 18W
Total Harmonic Distortion
THD
RL = 8Ω, VS = ±22V
f = 1kHz, PO = 0.1 ~ 20W
f = 100Hz ~ 10kHz, PO = 0.1 ~ 15W
Slew Rate
SR
Open Loop Voltage Gain
GV
Closed Loop Voltage Gain
GV
Power Bandwidth (-3dB)
BW
RL = 4Ω, VIN= 200mV
Curve A
Total Input Noise
eN
B = 22Hz ~ 22kHz
Input Resistance (pin 1)
RIN
Supply Voltage Rejection
SVR
RS = 22KΩ, f =100Hz, VRIPPLE =0.5Vrms
PO = 28W, RL = 4Ω
Efficiency
η
PO = 25W, RL = 8Ω, VS = ±22V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
±4.5
TYP
18
21
0.4
24
22
MAX
±25
50
90
0.5
±15
±200
27
18
25
35
22
32
50
0.03
UNIT
V
mA
µA
mV
nA
W
0.5
0.5
%
0.02
0.5
8
80
30
30.5
31
20 ~ 80000
4
5
10
500
45
65
67
5
V/µs
dB
dB
Hz
µV
kΩ
dB
%
3
QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
FOR SPLIT SUPPLY APPLICATION SUGGESTIONS
+VS
C5
220μF
C1
22μF
1
VIN
R1
22kΩ
2
5
+
4
UTC
TDA2050
-
R3
22kΩ
3
R4
2.2Ω
RL
C7
0.47μF
R2
680Ω
C2
22μF
C3
100nF
-VS
C4
100nF
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.
COMPONENT
PURPOSE
TYPICAL
R1
Input Impedance
22kΩ
R2
R3
R4
C1
Feedback Resistor
680Ω
22kΩ
2.2Ω
1µF
Frequency Stability
Input Decoupling DC
Inverting Input DC
C2
Decoupling
C3, C4
Supply Voltage Bypass
C5, C6
Supply Voltage Bypass
C7
Frequency Stability
* The gain must be higher than 24dB
22µF
100nF
220µF
0.47µF
UNISONIC TECHNOLOGIES CO., LTD
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RECOMMENDED VALUE
LARGER
SMALLER
Increase of Input Impedance Decrease of Input
Impedance
Decrease of Gain*
Increase of Gain
Increase of Gain
Decrease of Gain*
Danger of Oscillations
Higher Low-frequency cut-off
Increase of Switch ON/OFF
Higher Low-frequency cut-off
Noise
Danger of Oscillations
Danger of Oscillations
Danger of Oscillations
4
QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT(CONT.)
FOR SINGLE SUPPLY APPLICATION SUGGESTIONS
+VS
R1
22kΩ
C1
2.2μF
C3
1000μF
C5
100nF
1
IN
R3
22kΩ
2
5
+
UTC
TDA2050
-
3
4
R5
22kΩ
R2
22kΩ
R6
2.2Ω
RL
C6
0.47μF
C4
22μF
C2
1000μF
C7
1000μF
R4
680Ω
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.
COMPONENT
R1, R2, R3
R4
R5
R6
C1
C2
C3
PURPOSE
Biasing Resistor
Feedback Resistor
Frequency Stability
Input Decoupling DC
Supply Voltage
Rejection
Supply Voltage Bypass
Inverting Input DC
Decoupling
C5
Supply Voltage Bypass
C6
Frequency Stability
C7
Output DC Decoupling
* The gain must be higher than 24dB
C4
TYPICAL
RECOMMENDED VALUE
LARGER
22kΩ
22kΩ
680Ω
2.2Ω
2.2µF
Increase of Gain
Decrease of Gain*
Danger of Oscillations
100µF
Worse Turn-off Transient
Worse Turn-on Delay
100nF
0.47µF
1000µF
Decrease of Gain*
Increase of Gain
Higher Low-frequency cut-off
Danger of Oscillations
Worse of Turn-off Transient
1000µF
22µF
SMALLER
Increase of Switch ON/OFF
Higher Low-frequency cut-off
Danger of Oscillations
Danger of Oscillations
Higher Low-frequency cut-off
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
www.unisonic.com.tw
5
QW-R107-036,A
TDA2050
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS (Split Supply Test Circuit, unless otherwise specified)
Output Power vs. Supply Voltage
40
Output Power vs. Supply Voltage
40
RL = 8Ω
f = 1kHz
35
30
30
THD = 10%
25
PO (W)
PO (W)
25
+
20
15
THD = 0.5%
15
10
5
5
0
5
10
15
20
VS (V)
25
THD= 10%
20
10
0
RL = 4Ω
f = 1kHz
35
0
30
THD= 0.5%
0
15
20
VS (V)
25
30
40
60
RL = 4Ω
55
30
45
25
PD (W)
50
40
15
30
10
25
5
5
10
15
20
VS (V)
25
0
30
80
70
60
50
m
20
35
0
VS = 18V
RL = 4Ω
f = 1kHz
35
PD
0
5
10
15
20 25
PO (W)
30
35 40
40
30
20
10
0
Total Power Dissipation and Efficiency
vs. Output Power
VS = 22V
RL = 8Ω
f = 1kHz
28
24
80
70
60
50
m
16
PD
12
8
4
0
0
5
10
15
20 25
PO (W)
30
35
m (%)
PD (W)
20
40
30
20
10
0
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6
QW-R107-036,A
m (%)
I D (mA)
10
Total Power Dissipation and Efficiency
vs. Output Power
Quiescent Current vs. Supply Voltage
20
5
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
7
QW-R107-036,A