DA2050G-TA5-T

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UNISONIC TECHNOLOGIES CO., LTD TDA2050 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 8 Copyright © 2013 Unisonic Technologies Co., LTD QW-R107-036.C 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 4 Ω 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.  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  ORDERING INFORMATION Ordering Number Package Packing Lead Free Halogen Free TDA2050L-TA5-T TDA2050G-TA5-T TO-220-5 Tube TDA2050L-TB5-T TDA2050G-TB5-T TO-220B Tube TDA2050L-TA5-T (1)Packing Type (2)Package Type (3)Lead Plating (1) T: Tube (2) TA5: TO-220-5, TB5: TO-220B (3) L: Lead Free, G: Halogen Free

TDA2050 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 8 www.unisonic.com.tw Q W - R 1 0 7 - 0 3 6 . C  PIN CONFIGURATION  BLOCK DIAGRAM SHORT CIRC. PROTECT. SHORT CIRC. PROTECT. VREF

TDA2050 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 8 www.unisonic.com.tw Q W - R 1 0 7 - 0 3 6 . C  ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage V S ±25 V Input Voltage V IN V S V Differential Input Voltage V IN(DIFF) ±15 V Output Peak Current (internally limited) I OUT 5 A Power Dissipation TC= 75°C P D 25 W Junction Temperature T J +150 °C Storage Temperature T STG -40 ~ +150 °C 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.  THERMAL DATA PARAMETER SYMBOL RATINGS UNIT Thermal Resistance junction-case θJC 3 °C/W  ELECTRICAL CHARACTERISTICS (Refer to the Test Circuit, VS = ±18V, TA= 25°C, f = 1 kHz, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltage V S ±4.5 ±25 V Quiescent Drain Current I D VS=±4.5V 18 50 mAVS=±25V 21 90 Input Bias Current I B V S=±22V 0.4 0.5 μA Input Offset Voltage V IN(OS) V S=±22V ±15 mV Input Offset Current I IN(OS) V S=±22V ±200 nA RMS Output Power D = 0.5% PO RL=4Ω 24 27 W RL=8Ω 18 RL=8Ω, VS=±22V 22 25 D = 10% RL=4Ω 35 RL=8Ω 22 RL=8Ω, VS=±22V 32 Music Power IEC268.3 RULES D=10%, T=1s, V S=±22.5V, RL=4Ω 50 Total Harmonic Distortion THD RL=4Ω f=1kHz, PO=0.1~24W 0.03 0.5 f =100Hz~10kHz, PO=0.1~18W 0.5 RL=8Ω, VS=±22V f=1kHz, PO=0.1~20W 0.02 f=100Hz~10kHz, PO=0.1~15W 0.5 Slew Rate SR 5 8 V/ μs Open Loop Voltage Gain G V 80 dB Closed Loop Voltage Gain G V 30 30.5 31 dB Power Bandwidth (-3dB) B W R L=4Ω, VIN=200mV 20 ~ 80000 Hz Total Input Noise e N Curve A B=22Hz~22kHz 4 10 μV Input Resistance (pin 1) R IN 500 k Ω Supply Voltage Rejection SVR R S=22KΩ, f=100Hz, VRIPPLE=0.5Vrms 45 dB Efficiency η PO=28W, RL=4Ω 65 % PO=25W, RL=8Ω, VS=±22V 67

TDA2050 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 4 of 8 www.unisonic.com.tw Q W - R 1 0 7 - 0 3 6 . C  TYPICAL APPLICATION CIRCUIT FOR SPLIT SUPPLY APPLICATION SUGGESTIONS -VS RL 2.2Ω 0.47μF 100nF 220μF +VS 22kΩ3 100nF 220μF 22μF 680Ω 1μF 5 UTC TDA2050 VIN 22kΩ Figure.1 Split Supply Typical Application Circuit The following table demonstrates the recommended valu es of the external components are those shown on above circuit. Different values can be used. COMPONENT PURPOSE RECOMMENDED VALUE TYPICAL LARGER SMALLER R1 Input Impedance 22k Ω Increase of Input Impedance Decrease of Input Impedance R2 Feedback Resistor 680 Ω Decrease of Gain* Increase of Gain R3 22k Ω Increase of Gain Decrease of Gain* R4 Frequency Stability 2.2 Ω Danger of Oscillations C1 Input Decoupling DC 1 μF Higher Low-frequency cut-off C2 Inverting Input DC Decoupling 22μF Increase of Switch ON/OFF Noise Higher Low-frequency cut-off C3, C4 Supply Voltage Bypass 100nF Danger of Oscillations C5, C6 Supply Voltage Bypass 220 μF Danger of Oscillations C7 Frequency Stability 0.47 μF Danger of Oscillations * The gain must be higher than 24dB

TDA2050 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 5 of 8 www.unisonic.com.tw Q W - R 1 0 7 - 0 3 6 . C  TYPICAL APPLICATION CIRCUIT(CONT.) FOR SINGLE SUPPLY APPLICATION SUGGESTIONS Figure.2 Single Supply Typical Application Circuit The following table demonstrates the recommended val ues of the external co mponents are those shown on above circuit. Different values can be used. COMPONENT PURPOSE RECOMMENDED VALUE TYPICAL LARGER SMALLER R1, R2, R3 Biasing Resistor 22k Ω R4 Feedback Resistor 680Ω Decrease of Gain* Increase of Gain R5 22k Ω Increase of Gain Decrease of Gain* R6 Frequency Stability 2.2 Ω Danger of Oscillations C1 Non-Inverting Input Decoupling DC 2.2μF Higher Low-frequency cut-off C2 Supply Voltage Rejection 100μF Worse Turn-off Transient Worse Turn-on Delay C3 Supply Voltage Bypass 1000 μF Danger of Oscillations Worse of Turn-off Transient C4 Inverting Input DC Decoupling 22μF Increase of Switch ON/OFF Higher Low-frequency cut-off C5 Supply Voltage Bypass 100nF Danger of Oscillations C6 Frequency Stability 0.47 μF Danger of Oscillations C7 Output DC Decoupling 1000 μF 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.

TDA2050 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 6 of 8 www.unisonic.com.tw Q W - R 1 0 7 - 0 3 6 . C  TYPICAL CHARACTERISTICS (Split Supply Test Circuit, unless otherwise specified) PO (W) PO (W) ID (mA) PD (W) m (%) PD (W) m (%)

TDA2050 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 7 of 8 www.unisonic.com.tw Q W - R 1 0 7 - 0 3 6 . C 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 expec ted 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.