TIGER ELECTRONIC CO.,LTD 32W Hi-Fi AUDIO POWER AMPLIFIER TDA2050 Outline Drawing DESCRIPTION The TDA2050 is a monolithic integrated circuit in Pentawatt package, intended for use as an audio class AB audio amplifier. Thanks to its high power capability the TDA2050 is able to provide up to35W true rms power into 4 ohm load @ THD =10%, V S = ±18V, f = 1KHz and up to 32W into 8ohm load @THD = 10%, V S = ±22V, f = 1KHz. Moreover, theTDA2050 delivers typically 50W music power into 4 ohm load over 1 sec at V S =22.5V, f = 1KHz. The high power and very low harmonic and crossover distortion (THD = 0.05% typ, @ V S = ±22V, P O = 0.1 to 15W, R L =8ohm, f = 100Hz to 15KHz) make the device most suitable for both HiFi and high class TV sets. FEATURE High output power(50W musi c 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 PIN CONNECTION 1/6 TDA2050 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS (Ta=25°C) Characteristic Supply voltage Input voltage Differential input voltage Output peak current(internally limited) Power dissipationTcase=75°C Storage and junction temp erature range ELECTRICAL Symbol Vs Vi Vi Io Ptot Tstg,Tj CHARACTERISTICS (Unless Value ±25 Vs ±15 5 25 -40~+150 otherwise specified : Unit V V V A W °C Vs=±18V ； f=1KHz ； Ta=2 5°C) Characteristics Supply voltage range Quiescent drain current Input bias current Input offset voltage Input offset current RMS output power Symbol Vs Id Ib Vos Ios Po Test conditions Vs=±4.5V Vs=±25V Vs=±22V Vs=±22V Vs=±22V d=0.5% R L =4 Ω R L =8 Ω Vs=±22V R L =8 Ω d=10% R L =4 Ω R L =8 Ω Vs=±22V R L =8 Ω d=10%,T=1s Vs=±22.5V R L =4 Ω Min ±4.5 Typ 30 55 0.1 24 22 Max ±25 50 90 0.5 ±15 ±200 Unit V mA µA mV nA 28 18 25 35 22 32 W 50 2/6 TDA2050 Co n tin ue: Characteristics Total harmonic distortion Symbol d Test conditions R L =4 Ω f=1kHz,Po=0.1 to 24W Min Typ Max Unit 0.03 0.5 0.5 % f=100Hz to 10kHz,Po=0.1 to 18W Vs=±22V R L =8 Ω f=1kHz,Po=0.1 to 20W 0.02 Slew Rate Open loop voltage gain Closed loop voltage gain Power bandwidth(-3dB) SR Gv Gv BW To tal input noise eN Input resistance(pin 1) Ri Supply voltage rejection Efficiency Thermal shut-down Junction temperature SVR η Tsd-j 5 R L =4 Ω Vi=200mV Curve A B=22Hz to 22kHz Rs=22kΩ;f=100Hz Vripple=0.5Vrms Po=28W;R L =4 Ω Po=25W; R L =8 Ω Vs=±22V % 0.5 f=100Hz to 10kHz,Po=0.1 to 15W 8 80 30 30.5 31 20 to 80000 4 5 10 500 45 65 67 150 V/µs dB dB Hz µV kΩ dB % % °C 3/6 TDA2050 APPLICATION CIRCUIT Split Supply Ty pical Application Circuit Single Supply Typical Application Circuit 4/6 TDA2050 CHARACTERISTIC CURVES 5/6 TDA2050 6/6