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YOUDA INTEGRATED CIRCUIT TDA2003

10W AUDIO AMPLIFIER—TDA2003

DESCRIPTION
The TDA2003 has very low number of external components, ease of assembly, space and cost saving, are
maintained. The device provides a high output current capability (up to 3.5A) very low harmonic and cross- over
distortion. Completely safe operation is guaranteed due to protection against DC and AC short circuit between all
pins and ground, thermal over-range, load dump voltage surge up to 40V and fortuitous open ground.

BLOCK DIAGRAM

2 4
1 3 5

ABSOLUTE MAXIMUM RATINGS (Tamb=25℃)

PARAMETER SYMBOL VALUE UNIT

Peak Supply Voltage(50ms) Vccp 40 V
DC Supply Voltage Vcc 28 V
Operating Supply Voltage Vcc 18 V
Output Peak Current(repetitive) Io 3.5 A
Output Peak Current (non repetitive) Io 4.5 A
Power Dissipation at Tc=90℃ PD 20 W
Ambient operating temperature Topr -20～+75 ℃
Storage And Junction Temperature Tstg -40～+150 ℃

WuXi YouDa Electronics Co., Ltd

Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel:86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: www.e-youda.com
SHENZHEN OFFICE Tel： 86-755-83740369 Fax： 86-755-83741418
Ver 5.0 1 of 3 2006-06-28
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YOUDA INTEGRATED CIRCUIT TDA2003

ELECTRICAL CHARACTERISTICS
(Tamb=25℃, V=16.5V, f=1kHz, Unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS NIN TYP MAX UNIT
Supply Voltage Vcc 8 18 V
Quiescent Output Voltage Vo 6.1 6.9 7.7 V
Quiescent Drain Current Iccq 44 50 mA
THD=10%, RL=4Ω 5.5 6
THD=10%, RL =2Ω 9 10
Output Power Po W
THD=10%, RL =3.2Ω 7.5
THD=10%, RL =1.6Ω 12
Input Saturation Voltage Vim 300 mV
Po=0.5W, RL =4Ω 14
Po=6W, RL =4Ω 55
Input Sensitivity Vi mV
Po=0.5W, RL =2Ω 10
Po=10W, RL =2Ω 50

Frequency Response BW Po=1W, RL =4Ω 40 to 15000 Hz

Po=0.05～4.5W, RL =4Ω 0.15 %

Distortion THD
Po=0.05～7.5W, RL =2Ω 0.15 %
Input Resistance (pin 1) Zi f=1kHz 70 150 KΩ
Input Noise Current lNI 60 200 pA
Input Noise Voltage VNI 1 5 μV
f=1kHz 80 dB
Voltage Gain (Open Loop) Gvo
f=10kHz 60 dB
Voltage Gain (closed
Gv RL =4Ω 39.3 40 40.3 dB
Loop)
Po=6W, RL =4Ω 69 %
Efficiency η
Po=10W, RL =2Ω 65 %
f=100Hz, Vr=0.5V
Supply Voltage Rejection SVR 30 36 dB
Rg=10kΩ, RL =4Ω

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YOUDA INTEGRATED CIRCUIT TDA2003

APPLICATION CIRCUIT

Vcc

5 +
1000μ 0.1μ
+
Vin 1 +
10μ
+
4
_ 1000μ
2
220Ω 1Ω
3
+
470μ

39Ω 2.2Ω 0.1μ

0.039μ

OUTLINE DRAWING
Inches / millimeters

WuXi YouDa Electronics Co., Ltd 3 of 3 Website: www.e-youda.com