TDA7266D – 5W+5W DUAL BRIDGE AMPLIFIER

Part Number : TDA7266D

Function : 5W+5W DUAL BRIDGE AMPLIFIER

Manufactures : STMicroelectronics

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Description :

TDA7266D 5W+5W DUAL BRIDGE AMPLIFIER PRELIMINARY DATA s s WIDE SUPPLY VOLTAGE RANGE (3.5 – 12V) OUTPUT POWER 5+5W @THD = 10%, R L = 8Ω, VCC = 9.5V SINGLE SUPPLY MINIMUM EXTERNAL COMPONENTS – NO SVR CAPACITOR – NO BOOTSTRAP – NO BOUCHEROT CELLS – INTERNALLY FIXED GAIN TECHNOLOGY BI20II s s s s s STAND-BY & MUTE FUNCTIONS SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION PowerSO20 Slug Down ORDERING NUMBER: TDA7266D DESCRIPTION The TDA7266D is a dual bridge amplifier specially TEST AND APPLICATION CIRCUIT designed for LCD TV/Monitor, PC Motherboard, TV and Portable Audio applications. VCC JP1 R1 47K R2 47K IN1 S-GND R3 10K 9 C4 10µF Vref C5 0.22µF IN2 MUTE R4 10K 8 C6 1µF 1 10 11 PW-GND 20 + D02AU1407 +5V C3 0.22µF 6 7 + 13 15 2 C1 470µF OUT1+ C2 100nF C7 100nF ST-BY + + – 5 OUT1- 14 19 OUT2+ 16 OUT2- May 2003 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/13 TDA7266D ABSOLUTE MAXIMUM RATINGS Symbol Vs IO Ptot Top Tstg, Tj Supply Voltage Output Peak Current (internally limited) Total Power Dissipation (Tamb = 70°C Operating Temperature Storage and Junction Temperature Parameter Value 20 1.5 25 0 to 70 -40 to 150 Unit V A W °C °C THERMAL DATA Symbol Rth j-case Rth j-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient (on recomended PCB) note1 Value 2.1 15 Unit °C/W °C/W Notes: 1. See Application note AN668, available on WEB FR4 with 15 via holes and ground layer. PIN CONNECTION PW GND OUT1+ N.C. N.C. OUT1VCC IN1 MUTE ST BY PW GND 1 2 3 4 5 6 7 8 9 10 D02AU1408 20 19 18 17 16 15 14 13 12 11 PW GND OUT2+ N.C. N.C. OUT2VCC IN2SGND N.C. PW GND 2/13 TDA7266D ELECTRICAL CHARACTERISTCS (Refer to test circuit) VCC = 9.5V, RL = 8Ω, f = 1KHz, Tamb = 25°C unless otherwise specified) Symbol VCC Iq VOS PO THD Parameter Supply Range Total Quiescent Current Output Offset Voltage Output Power Total Harmonic Distortion THD 10% PO = 1W PO = 0.1W to 2W f = 100Hz to 15KHz SVR CT AMUTE Tw GV ∆GV Ri VTMUTE Supply Voltage Rejection Crosstalk Mute Attenuation Thermal Threshold Closed Loop Voltage Gain Voltage Gain Matching Input Resistance Mute Threshold for VCC > 6.4V; Vo = -30dB for VCC < 6.4V; Vo = -30dB VTST-BY IST-BY eN St-by Threshold St-by Current V6 = GND Total Output Voltage A Curve 150 25 2.3 VCC/2 -1 0.8 30 2.9 VCC/2 -0.75 1.3 4.1 VCC/2 -0.5 1.8 100 25 f = 100Hz, VR =0.5V 40 46 60 56 60 80 150 26 27 0.5 4.3 5 0.05 0.2 1 Test Condition Min. 3.5 Typ. 9.5 50 Max. 12 60 120 Unit V mA mV W % % dB dB dB °C dB dB KΩ V V V µA µV 3/13 TDA7266D APPLICATIVE SUGGESTIONS STAND-BY AND MUTE FUNCTIONS (A) Microprocessor Application In order to avoid annoying "Pop-Noise" during Turn-On/Off transients, it is necessary to guarantee the right Stby and mute signals sequence.It is quite simple to obtain this function using a microprocessor (Fig. 1 and 2). At first St-by signal (from µP) g [...]

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TDA7266D Datasheet


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