LX7720数据手册Microchip中文资料规格书

描述 Description

The LX7720 is a spacecraft motor driver that is radiation-hardened by design and works with either a space FPGA controller such as RTG4, RT PolarFire and RTAX-S/SL, or a space MCU such as SAMRH71F20, SAMRH707F18, SAMV71Q21RT, and SAM3X8ERT. The LX7720 contains four half-bridge drivers with floating current sense for motor coil driving, six bi-level inputs for sensing Hall effect sensors or rotary encoders, and a resolver or LVDT interface to digital with primary coil driver. The LX7720 works with an FPGA or MCU system controller to provide a complete closed loop motor driver with coil current feedback and rotation or linear position sensing. With flexible programming, the combined system can provide motor control for stepper motors, brushless DC and permanent magnet motors. Position sensing supports encoders, Hall effect sensors, resolvers, synchros, and LVDTs. The LX7720 is supported by Microchip's range of JANS-qualified power MOSFETs, such as the 100V, 22A JANSR2N7587U3 NFET.

特性 Features

Four half-bridge N-channel MOSFET drivers
Four floating differential current sensors
Pulse modulated resolver/LVDT transformer driver
Three differential resolver/LVDT sense inputs
Six threshold adjustable bi-level logic inputs for Hall effect sensor/encoder interfaces
Fault detection
Radiation tolerant: 100krad(Si) TID, 100krad(Si) ELDRS, Single Event Latch-up immune to 80MeV.cm²/mg