IL1815

IL1815 AMPLIFIER IC FOR SENSORS WITH DIFFERENT CONDUCTANCE Functional Description Designed IC is an integrated circuit (IC) of the amplifier for sensors with different conductance. IL1815 – is an IC of adaptive amplifier increasing analog signal from the sensor and transmitting a strobe of pulses from IC output into electrical circuit of motor engine control device. The amplifier ensures one short output pulse leading edge of which coincides with negative half-wave, crossing zero of input analog signal produced by alternating magnetic field of inductive sensor coil. TA = –40 ÷ +125°С Functions IC is purposed for application in automotive electronics in injection controller block as well as in engine control system for: crankshaft position (condition) control; Switching when crossing zero; engine rotation speed control; tachometer (rotation speed measurement); engine check (testing). IC IL1815 is analog to microcircuit of the third integration scale and comprises 131 elements. The circuit is implemented in 14-pin DIP-package of MS-001AA (IL1815N) type and in 14-pin SOpackage of MS-012AB (IL1815D) type. Connection of loading of 1 kOhm to IC output (to pin 10) is tolerable. Features Adaptive hysteresis One-polar power supply mode Influence of «ground» on input Precise choice of the initial ignition moment Operation in the supply voltage range of 2,5 V up to 12 V control of input (pin 3) by signal coming into external resistor with amplitude from 75 ...