NTE1478 Integrated Circuit Solenoid Driver & Signal Sensing Circuit Description: The NTE1478 is an integrated circuit in a 10–Lead SIP type package that detects the stopping of a rotary signal and drives a plunger. It is designed for use in auto–reverse and auto–eject car stereo applications and can be used as a solenoid driver in many other control circuits. Features: D Internal Output Power Transistor: 5A Load Current Capability D Programmable Switch: Manual Operation Can be Obtained D Pause Switch: Switching Pause (Switch ON), Plunger Does Not Operate Even if the Rotary Detective Signal Stops. D Internal Load Dump Protector (Excessive Supply Voltage) D Response Time and Driving Time are Variable with External Capacitors D Input Sensitivity Voltage: 2VP–P Min D Operating Supply Voltage Range: VCC = 9V to 18V Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Load Current, IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A Power Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5W Peak Supply Voltage (1200 ms), VCCsurge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Electrical Characteristics: (VCC = 13.2V, RL = 3.3Ω, TA = +25°C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Plunger Response Time Trp C1 = 47µF, C2 = 10µF – 1.3 – sec Plunger Driving Time Tdp C1 = 47µF, C2 = 10µF – 100 – msec 3.0 5.6 9.0 mA Supply Current Pin2 Voltage Power Transistor Cutoff Current ICC(OFF) Current at Plunger OFF ICC(ON) Current at Plunger ON – 3.96 – A V2 Pin8 = GND, Pin4 = 9V – 0.6 1.0 V Pin2 = 40V, Pin10 = GND – – 100 µA ICER Pin Connection Diagram (Front View) 10 GND 9 C2 Term 8 Program 7 C1 Term 6 Input 5 Pause 4 VCC 3 N.C. 2 Output 1 N.C. 1.050 (26.67) Max .867 (22.0) .079 (2.0) .128 (3.2) Dia .276 (7.0) .433 (11.0) 1 10 .217 (5.5) .100 (2.54) .900 (22.8)