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NTE1287 Dataheets PDF



Part Number NTE1287
Manufacturers NTE
Logo NTE
Description Audio Power Amplifier
Datasheet NTE1287 DatasheetNTE1287 Datasheet (PDF)

NTE1287 Integrated Circuit Linear, Audio Power Amp, 20 Watt Includes Thermal Shutdown Description: The NTE1287 is a monolithic integrated operational amplifier in a 14−lead quad in−line plastic package, intended for use as a low frequency class B power amplifier. Typically it provides 20W output power (d = 1%) at ±18V/4Ω; the guaranteed output power at ±17V/4Ω is 15W. The NTE1287 provides high output current (up to 3.5A) and has very low harmonic and cross−over distortion. Further, the device in.

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NTE1287 Integrated Circuit Linear, Audio Power Amp, 20 Watt Includes Thermal Shutdown Description: The NTE1287 is a monolithic integrated operational amplifier in a 14−lead quad in−line plastic package, intended for use as a low frequency class B power amplifier. Typically it provides 20W output power (d = 1%) at ±18V/4Ω; the guaranteed output power at ±17V/4Ω is 15W. The NTE1287 provides high output current (up to 3.5A) and has very low harmonic and cross−over distortion. Further, the device incorporates an original (and patented) short circuit protection system, comprising an arrangement for automatically limiting the dissipated power so as to keep to working point of the output transistors within their safe operating area. A conventional thermal shut−down system is also included. Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vs Differential Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V Output Peak Current (internally limited), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A Power Dissipation (TC ≤ +75°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C Thermal Resistance, Junction−to−Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3°C/W Typical Thermal Shut−Down Temperature, Tsd Junction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +140°C Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +105°C Electrical Characteristics: (VS = ±17V, TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Supply Voltage Quiescent Drain Current Input Bias Current Input Offset Voltage Input Offset Current Output Offset Voltage Output Power VS ±5 − ±22 V Id Vs = ±22V − 60 − mA Ib − 0.15 − µA Vos − 5 − mV Ios − 0.05 − µA Vos − 10 100 mV PO THD = 1%, GV = 30dB, f = 40Hz to 15kHz, TC ≤ +70°C RL = 4Ω VS = ±17V 15.0 18.5 − W VS = ±18V − 20.0 − W RL = 8Ω − 16.5 − W THD = 10%, GV = 30dB, f = 1kHz TC ≤ +70°C RL = 4Ω, VS = ±17V RL = 8Ω, VS = ±18V − 24 − W − 20 − W Electrical Characteristics (Cont’d): (VS = ±17V, TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Input Sensitivity Frequency Response (−3dB) Total Harminic Distortion Input Resistance (Pin7) Voltage Gain VI b THD RI GV GV = 30dB, f = 1kHz, PO = 15W RL = 4Ω, C4 = 68pF PO = 150mW to 15W, RL = 4Ω, GV = 30dB, TC ≤ +70°C PO = 150mW to 15W, RL = 8Ω, GV = 30dB, VS = ±18V, TC ≤ +70°C RL = 4Ω, VS = ±17V RL = 8Ω, VS = ±18V f = 1kHz f = 40Hz to 15kHz f = 1kHz f = 40Hz to 15kHz RL = 4Ω, f = 1kHz Open Loop Closed Loop − 260 − mV − 380 − mV 10 to 160k Hz − 0.2 − % − 0.3 1.0 % − 0.1 − % − 0.25 − % − 5 − MΩ − 100 − dB 29.5 30.0 30.5 dB Input Noise Voltage Input Noise Current Supply Voltage Rejection Drain Current eN IN SVR Id RL = 4Ω, b (−3dB) = 10Hz to 20kHz RL = 4Ω, GV = 30dB, fripple = 100Hz PO = 18.5W, RL = 4Ω, PO = 16.5W, VS = ±18V, RL = 8Ω, − 4 − µV − 0.1 − nA − 50 − dB − 1 − A − 0.7 − A Pin Connection Diagram (+) VCC 1 N.C. 2 (−) VCC 3 N.C. 4 (−) VCC 5 N.C. 6 Non−Inverting Input 7 14 Output 13 N.C. 12 Power Limiting 11 N.C. 10 Compensation 9 Compensation 8 Inverting Input 14 8 .260 (6.6) Max 1 7 .200 (5.08) Max .100 (2.54) .770 (19.5) Max .300 (7.62) .100 (2.54) Max .025 (0.64) .600 (15.24) .200 (5.08) .400 (10.16) .


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