TDA7365

® TDA7365 2 x 6W CAR RADIO AMPLIFIER PLUS SOLID STATE SWITCH OUTPUT POWER 2x6W/4Ω @14.4V, 1KHz, 10% SOLID STATE POWER SWITCH INCLUDED (1A @ VDROP = 0.8V Typ.) MINIMUM EXTERNAL COMPONENT COUNT - INTERNALLY FIXED GAIN (40dB) - NO BOOTSTRAP CAPACITORS - NO EXTERNAL COMPENSATION ST-BY FUNCTION (CMOS COMPATIBLE) MUTE FUNCTION (CMOS COMPATIBLE) NO AUDIBLE POP DURING MUTE/ST-BY OPERATIONS LOW SUPPLY SELF MUTING PROTECTIONS AC AUDIO OUTPUTS SHORT CIRCUIT TO GND DC AUDIO OUTPUTS SHORT CIRCUIT TO GND AND TO VS AT POWER ON SWITCH OUTPUT INTERNAL CURRENT LIMITATION OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER LOAD DUMP FORTUITOUS OPEN GND MULTIWATT15 ORDERING NUMBER: TDA7365 REVERSE BATTERY ESD DESCRIPTION The TDA7365 is a new technology Dual Audio Amplifier in Multiwatt15 package especially designed for stereo car radio applications. Thanks to the fully complementary output configuration the TDA7365 delivers a rail to rail voltage swing with no need of boostrap capacitors It includes a solid state switch, enabled by a ST-BY function common to the audio section, suitable for supplying both the signal processing part of the car radio set and the lamps. As a results the power-on operation is simplified, thereby saving cost and space in the whole power section. BLOCK DIAGRAM September 2003 1/7 TDA7365 PIN CONNECTION (Top view) Vs Vs ABSOLUTE MAXIMUM RATINGS Symbol VS VOP VPEAK IO IO IO Ptot Tstg, Tj Parameter Value Unit DC Supply Voltage 28 V Operating Supply Voltage 18 V Peak Supply Voltage (t = 50ms) 40 V Audio Channels Output Peak Current (not rep. t = 100µs) 4 A Audio Channels Output Peak Current (rep. f > 10Hz) 3 A (internally limited) 1.5 32 A W -40 to 150 °C Switch Output Peak Current Power Dissipation (Tcase = 85°C) Storage and Junction Temperature THERMAL DATA Symbol Rth j-case 2/7 Description Thermal Resistance Junction-case Max Value Unit 2 °C/W TDA7365 ELECTRICAL CHARACTERISTICS (Refer to the test circuit; VS = 14.4V; RL = 4Ω, Tamb = 25°C, f = 1kHz, unless otherwise specified) Symbol VS Id PO Parameter Test Condition Min. Supply Range Typ. 8 Total Quiescent Drain Current Output Power Power Switch Unloaded RL = 4Ω; THD = 10% each channel 18 5.5 RL = 2Ω; THD = 10% each channel d Distortion PO = 0.1 to 3W CT Cross Talk f = 1kHz; Rg = 0 f = 10kHz; Rg = 0 RIN GV Max. V 80 6 mA W 9 W 0.08 0.3 50 55 50 Input Impedance 40 50 39 40 GV Voltage Gain Voltage Gain Match. 41 1 EIN Input Noise Voltage (*) Rg = 0 1.2 5 Supply Voltage Rejection Rg = 0 ; f = 100Hz; Vr = 0.5Vrms SVR Unit 45 50 60 90 % dB dB KΩ dB dB µV dB ASB Stand-by Attenuation ISB VSB IN ST-BY Current Consumption 100 µA ST-BY IN Threshold Voltage 1.5 V 1.5 V VSB OUT VM IN ST-BY OUT Threshold Voltage VM OUT MUTE OUT Threshold Voltage dB 3.5 V MUTE IN Threshold Voltage 3.5 V POWER SWITCH CHARACTERISTICS Symbol IOp VDROP Parameter Test Condition Min. Typ. Continuous Output Current Max. Unit 1.4 V 1.2 Dropout Voltage Io = 1A A (*) 22Hz to 22KHz (**) A weighted TEST AND APPLICATION CIRCUIT +Vs 0.1µF C6 470µF C5 47µF C10 POWER SWITCH PWR SWITCH OUTPUT 4.7µF C9 SVR TO THE VOLTAGE REGULATOR SUPPLYING THE LOW SIGNAL SECTION PW-GND 0.22µF C1 0.22µF C2 IN1 1000µF C3 OUT1 IN2 50K OUT2 1000µF C4 50K 10K R1 ST-BY 0.1µF C7 MUTE S-GND 10K R2 10µF C8 D94AU116B 3/7 TDA7365 Figure 1: P.C.Board and component layout of the Test and Application Circuit 1:1 scale. Figure 2: Quiescent Drain Current vs. Supply Voltage Figure 3: Output Power vs. Supply Voltage Figure 4: Output Power vs. Supply Voltage Figure 5: Distortion vs. Output Power 4/7 TDA7365 Fiigure 6: Distortion vs. Frequency Figure 7: Supply Voltage Rejection Fiigure 8: Cross-Talk vs. Frequency Figure 9: Switch Drop-out vs. Switch Current Figure 10: Total Power Dissipation and Efficiency vs. Output Power Figure 11: Total Power Dissipation and Efficiency Ptot (W) Ptot 5/7 TDA7365 mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 5 0.197 B 2.65 0.104 C 1.6 0.063 D 1 0.039 E 0.49 0.55 0.019 0.022 F 0.66 0.75 0.026 0.030 G 1.02 1.27 1.52 0.040 0.050 0.060 G1 17.53 17.78 18.03 0.690 0.700 0.710 H1 19.6 0.772 H2 20.2 0.795 L 21.9 22.2 22.5 0.862 0.874 0.886 L1 21.7 22.1 22.5 0.854 0.870 0.886 L2 17.65 18.1 0.695 L3 17.25 17.5 17.75 0.679 0.689 0.699 L4 10.3 10.7 10.9 0.406 0.421 0.429 0.713 L7 2.65 2.9 0.104 M 4.25 4.55 4.85 0.167 0.179 0.191 M1 4.63 5.08 5.53 0.182 0.200 0.218 S 1.9 2.6 0.075 0.102 S1 1.9 2.6 0.075 0.102 Dia1 3.65 3.85 0.144 0.152 6/7 OUTLINE AND MECHANICAL DATA 0.114 Multiwatt15 V TDA7365 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2003 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia – Belgium - Brazil - Canada - China – Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 7/7