NTE7169 Integrated Circuit Audio Power Amplifier, 32W Description: The NTE7169 is a monolithic integrated circuit in a 5 - Lead TO220 type package intended for use as an audio class AB audio amplifier. Thanks to its high power capability, the NTE7169 is able to provide up to 35W true RMS power into a 4Ω load (THD = 10%, VS = ±18V, f = 1kHz) and up to 32W into an 8Ω load (THD = 10%, VS = ±22V, f = 1kHz). Moreover, the NTE7169 delivers typically 50W music power into a 4Ω load over 1sec at VS = 22.5V, f = 1kHz. The high power and very low harmonic and crossover distortion (THD = 0.05% Typ., @ VS = ±22V, PO = 0.1 to 15W, RL = 8Ω, f = 100Hz to 15kHz) make the device most suitable for both HiFi and high class TV sets. Features: D High Output Power (50W Music Power IEC 268.3 Rules) D High Operating Supply Voltage D Single or Split Supply Operations D Very Low Distortion D Short Circuit Protection (OUT - TO - GND) D Thermal Shutdown Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VS Differential Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V Output Peak Current (Internally Limited), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A Power Dissipation (TC = +75°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40° to +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40° to +150°C Maximum Thermal Resistance, Junction - to - Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W Electrical Characteristics: (VS = ±18V, TA = +25°C, f = 1kHz unless otherwise specified) Parameter Symbol Min Typ Max Unit ±4.5 - ±25 V VS = ±4.5V - 30 50 mA VS = ±25V - 55 90 mA ID VS = ±22V - 0.1 0.5 µA Input Offset Voltage VOS VS = ±22V - - ±15 mV Input Offset Current IOS VS = ±22V - - ±200 nA RMS Output Power PO d = 0.5% RL = 4Ω 24 28 - W RL = 8Ω - 18 - W 22 25 - W RL = 4Ω - 35 - V RL = 8Ω - 22 - W VS = ±22V, RL = 8Ω - 32 - W d = 10%, T = 1s, VS = ±22.5V, RL = 4Ω - 50 - W RL = 4Ω PO = 0.1 to 24W, f = 1kHz - 0.03 0.5 % PO = 0.1 to 18W, f = 100Hz to 10kHz - - 0.5 % - 0.02 - % - - 0.1 % Supply Voltage Range VS Quiescent Drain Current Id Input Bias Current Test Conditions VS = ±22V, RL = 8Ω d = 10% Music Power IEC268.3 Total Harmonic Distortion d VS = ±22V, PO = 0.1 to 20W, f = 1kHz RL = 8Ω Ω PO = 0.1 to15W, f = 100Hz to 10kHz Slew Rate SR 5 8 - V/µs Open Loop Voltage Gain GV - 80 - dB Closed Loop Voltage Gain GV 30.0 30.5 31.0 dB Power Bandwidth ( - 3dB) BW RL = 4Ω, Vi = 2000mV Total Input Noise eN A = Curve - 4 - µV f = 22Hz to 22kHz - 5 10 µV 500 - - kΩ Rs = 22kΩ, f = 100Hz, Vripple = 0.5Vrms - 45 - dB PO = 28W, RL = 4Ω - 65 - % PO = 25W, RL = 8Ω, VS = ±22V - 67 - % - 150 - °C Input Resistance (Pin1) Supply Voltage Rejection Efficiency Thermal Shutdown Ri SVR η TS 20 to 80,000 Hz Pin Connection Diagram (Front View) Non Inverting Input +VS Inverting Input Output - VS/Tab 0.45 (1.37) Max .408 (10.37 Max .114 (2.9) .619 (15.72) Max .896 (22.76) Max .364 (9.25) Max .850 (21.6) Max .135 (3.45) .150 (3.81) 1 3 2 5 4 .182 (4.62) Max .182 (4.62)