NTE1285 & NTE1286 Integrated Circuit Audio Power Amplifier, 5.8W Description: The NTE1285 and NTE1286 are audio power amplifiers in a 7–Lead SIP type package designed especially for car radio and car stereo applications. These devices are encapsulated in newly developed small packages featuring low thermal resistance, providing easy design for 2Ω. At 14.4V the devices give output power of 7W with RL = 4Ω and 11W with RL = 2Ω. Features: D High Output Power D Low Transient Noise at Power Supplu Switch ON D Mirror Image Pin Configurations D Protection Circuits are Provided for the Following: Load Dump Protection Thermal Shut–Down Protection Overvoltage Protection Output Terminal Short–Circuit Protection Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage (Surge PW = 200ms), VCCsurge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Supply Voltage (Quiescent, Note 1), VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V Supply Voltage (Operational), VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Peak Circuit Current, ICCpeak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5A Packag Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W Operating Temperature Range (Note 1), Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Note 1. Using an aluminum heat sink 100mm x 100mm x 1mm. Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Supply Voltage Range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.5V to 16V Load Impedance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ω to 2Ω Electrical Characteristics: (TA = +25°C, f = 1kHz, RL = 4Ω unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Circuit Current ICC uin = 0, VCC = 13.2V 23 45 80 mA Output Power PO RL = 4Ω, THD = 10%, VCC = 13.2V 5.0 5.8 – W RL = 4Ω, THD = 10%, VCC = 14.4V – 7.0 – W RL = 2Ω, THD = 10%, VCC = 13.2V – 9.2 – W RL = 2Ω, THD = 10%, VCC = 14.4V – 11.0 – W THD PO = 0.5W – 0.3 1.0 % Voltage Gain Au PO = 0.5W 51.0 53.5 56.0 dB Output Noise Level un Rg = 10kΩ Total Harmonic Distortion – Pin Connection Diagram (Front View) NTE1285 1.4 4.0 mVrms Pin Connection Diagram (Front View) 7 VCC 7 Input 6 Bootstrap 6 Bypass 5 Output 5 Feedback NTE1286 4 GND 3 Feedback 4 GND 3 Output 2 Bypass 2 Bootstrap 1 Input 1 VCC .787 (20.0) Max .590 (15.0) Max .158 (4.0) Max .512 (13.0) Max .590 (15.0) Max .071 (1.8) R 1 .256 (6.5) 7 .010 (.254) .100 (2.45) .083 (2.1)