UNISONIC TECHNOLOGIES CO TDA2050 Technical data

现货库存、技术资料、百科信息、热点资讯，精彩尽在鼎好!

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 V

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.

=22.5V, f = 1KHz.

S

 FEATURES

1

TO-220B

* 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

 ORDERING INFORMATION

Ordering Number

Normal Lead Free Plating

Package Packing

TDA2050-TB5-T TDA2050L-TB5-T TO-220B Tube

 PIN CONFIGURATION

5

4

3

2

1

*Pb-free plating product number: TDA2050L

+V

S

OUTPUT

-V

S

INVERTING INPUT

NON INVERTING INPUT

*TAB CONNECTED TO PIN 3

www.unisonic.com.tw 1

Copyright © 2005 Unisonic Technologies Co., LTD QW-R107-036,A

TDA2050 LINEAR INTEGRATED CIRCUIT

 BLOCK DIAGRAM

5

SHORT

CIRC.

PROTECT.

4

V

REF

SHORT

CIRC.

PROTECT.

3

21

UNISONIC TECHNOLOGIES CO., LTD 2

www.unisonic.com.tw QW-R107-036,A

TDA2050 LINEAR INTEGRATED CIRCUIT

 ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATINGS UNIT
Supply Voltage VS ±25 V
Input Voltage VIN V
Differential Input Voltage V
Output Peak Current (internally limited) I

Power Dissipation TC= 75℃

±15

IN(DIFF)

5

OUT

P

25 W

D

Junction Temperature TJ +125
Storage Temperature T

-40 ~ +150

STG

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 SYMBOL RATINGS UNIT

θ

Thermal Resistance junction-case

 ELECTRICAL CHARACTERISTICS

JC

S

℃
℃

℃
℃

3 ℃/W

(Refer to the Test Circuit, V

= ±18V, Ta = 25℃, f = 1 kHz, unless otherwise specified.)

S

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

Supply Voltage VS ±4.5 ±25 V

18

Quiescent Drain Current ID

V

= ±4.5V

S

V

= ±25V

S

21

50
90

mA

Input Bias Current IB VS = ±22V 0.4 0.5 µA
Input Offset Voltage V
Input Offset Current I

D = 0.5%

RMS Output Power

D = 10%

Music Power IEC268.3 RULES

VS = ±22V ±15 mV

IN(OS)

VS = ±22V ±200 nA

IN(OS)

27

= 4Ω

R

L

R

= 8Ω

L

R

= 8Ω, VS = ±22V

L

P

O

= 4Ω

R

L

R

= 8Ω

L

R

= 8Ω, VS = ±22V

L

D = 10%, T = 1s, V

= ±22.5V, RL = 4Ω 50

S

24

22

18
25
35
22
32

W

RL = 4Ω

Total Harmonic Distortion THD

f = 1kHz, P
f = 100Hz ~ 10kHz, P
R

= 8Ω, VS = ±22V

L

f = 1kHz, P
f = 100Hz ~ 10kHz, P

= 0.1 ~ 24W

O

O

= 0.1 ~ 20W

O

O

= 0.1 ~ 18W

= 0.1 ~ 15W

0.03 0.5

0.5

0.02

0.5

%

Slew Rate SR 5 8 V/µs
Open Loop Voltage Gain GV 80 dB
Closed Loop Voltage Gain GV 30 30.5 31 dB
Power Bandwidth (-3dB) BW RL = 4Ω, VIN= 200mV 20 ~ 80000 Hz

Total Input Noise eN

Curve A
B = 22Hz ~ 22kHz

4
5 10

µV

Input Resistance (pin 1) RIN 500 kΩ
Supply Voltage Rejection SVR RS = 22KΩ, f =100Hz, V

Efficiency η

PO = 28W, RL = 4Ω 65
P

= 25W, RL = 8Ω, VS = ±22V 67

O

=0.5Vrms 45 dB

RIPPLE

%

UNISONIC TECHNOLOGIES CO., LTD 3

www.unisonic.com.tw QW-R107-036,A