NTE7053 Integrated Circuit 22W Bridge–Stereo Amplifier for Car Radio Description: The NTE7053 is an audio power amplifier is a 11–Lead Staggered SIP type package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration, the high performance of this device is obtained without bootstrap capacitors. A delay turn–on mute circuit eliminates audible ON/OFF noise, and a novel short circuit protection system prevents spurious intervention with highly inductive loads. Features: Protections: D D D D D D D D Few External Components No Boucherot Cells No Bootstrap Capacitors High Output Power No Switch ON/OFF Noise Very Low Stand–by Current Fixed Gain (30dB Stereo) Programmable Turn–On Delay D Output AC–DC Short Circuit to GND and to Supply Voltage D Very Inductive Loads D Loudspeaker Protection D Overrating Chip Temperature D Load Dump Voltage D Fortuitous Open Ground Absolute Maximum Ratings: Operating Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V DC Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V Peak Supply Voltage (for t = 50ms), VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Output Peak Current (Non–Repetitive for t = 100µs), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A Output Peak Current (Repetitive Frequency > 10Hz), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A Power Dissipation (TC = +85°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36W Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Maximum Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8°C/W Electrical Characteristics: (TA = +25°C, VS = 14.4V, f = 1kHz unless otherwise specified) Parameter Symbol Supply Voltage Range VS Total Quiescent Drain Current Id Test Conditions Stereo Configuration Min Typ Max Unit 8 – 18 V – – 120 mA Stand–By Attenuation ASB 60 80 – dB Stand–By Current ISB – – 100 µA Thermal Shut–Down Junction Temperature Tsd – 150 – °C RL = 2Ω – 11 – W RL = 3.2Ω 7 8 – W RL = 4Ω – 8.5 – W RL = 2Ω – 9 – W RL = 3.2Ω – 6.5 – W RL = 4Ω – 5.5 – W – – 0.5 % C3 = 22µF 45 50 – dB C3 = 100µF – 57 – dB f = 1kHz 45 55 – dB f = 10kHz – 50 – dB Stereo Output Power (Each Channel) PO d = 10% d = 10%, VS = 13.2V Distortion Supply Voltage Rejection Crosstalk d SVR CT PO = 0.1W to 4W, RL = 3.2Ω RS = 10kΩ, f = 100Hz Input Resistance RI 30 50 – kΩ Voltage Gain GV 27 29 31 dB Voltage Gain Match GV – – 1 dB Input Noise Voltage EIN RS = 50Ω – 2 – µV RS = 10kΩ – 2.7 7 µV RL = 3.2Ω 16 22 – W RL = 4Ω – 20 – W RL = 3.2Ω – 19 – W RL = 4Ω – 17.5 – W – – 1 % – – 250 mV C3 = 22µF 45 50 – dB C3 = 100µF – 57 – dB Note 1 Bridge Output Power (Each Channel) PO d = 10% d = 10%, VS = 13.2V Distortion d Output Offset Voltage VOS Supply Voltage Rejection SVR PO = 0.1W to 4W, RL = 4Ω RS = 10kΩ, f = 100Hz Input Resistance RI – 50 – kΩ Voltage Gain GV 33 35 37 dB Input Noise Voltage EIN RS = 50Ω – 2.7 – µV RS = 10kΩ – 3.2 – µV Note 1. 22Hz to 22kHz Note 1 Pin Connection Diagram (Front View) 11 Stand–By 10 Output 1 9 +VS Tab 8 Output 2 7 SVR 6 P–GND/Tab 5 Input 2 (+) 4 Bridge/Stereo 3 S–GND 2 Input 1 (–) 1 Input 1 (+) .791 (20.1) .196 (4.99) .062 (1.52) .110 (2.79) Note .150 (3.81) Dia Max .689 (17.5) .696 (17.68) 1 11 .067 (1.7) .008 (.203) .858 (21.79) .200 (5.08) .169 (4.29) NOTE: Tab connected to Pin6