LX4580 Datasheet | Microchip Technology

Description Features The LX4580 Actuation System Manager AFE contains a bination - Redundant dual-SPI or dual-UART serial interfaces of functions for monitoring sensors, and for controlling motion. The - 5 PRT100 or PRT1k temperature sensor interfaces LX4580 interfaces with a microprocessor system or an FPGA to - 3 pressure sensor (or other 4-20m A) interfaces execute digital control system algorithms in real time. The robust - 2 LVDT drivers and driver monitors sensor interfaces are designed to operate in a DO-160 aircraft - 4 LVDT monitor differential pairs with instantaneous environment. The microprocessor / FPGA interface is based on an ECC code over a redundant slave SPI or UART interface. The LX4580 is typically powered from +15V and generates its own intermediate power rails. y The LX4580 offers a register file model to read / write information. r Five temperature sensor monitors, a voltage monitor and three a pressure sensor monitors are provided. Each sensor has a dedicated instrumentation amplifier. Each temperature sensor has a programmable current source and each pressure sensor has a power Apipn off switch. All nine amplifiers use a mon MUX and a set of two lications SAR ADCs. Up to four LVDT/resolver sensor outputs and 5 current sense channels lim can be monitored using the LX4580; each of these two types of sensors have a dedicated second order sigma delta modulator with a sample rate up to 2MHz. The LVDT channels can additionally provide the RMS value of the respective input signal. Two efficient full bridge drivers are provided to drive two independent LVDT primaries. These e can be used to drive a PWM modulated sine wave with external r filtering or any desired waveform from a DDS-type table P There are several digital IOs that are used to signal fault conditions, to and RMS outputs - 5 current sense interfaces - 1 differential voltage measurement interface - 3 Hall effect proximity sensor inputs - 8 PWM outputs - Integrated regulators...