AMC8520 Datasheet | Andigilog

Description The a MC8520 is a full featured single phase brushless DC motor controller that contains all the required functions for an economical closed loop motor control solution that fulfills the balanced technology extended (BTX) requirements allowing a significant reduction of acoustic noise generation. Unique features of this device are a pulse width modulation (PWM) speed control input that is patible with industry standard digital temperature monitors, thermistor input with adjustable gain and minimum temperature response threshold for temperature monitoring, programmable high and low temperature maximum RPM, programmable minimum RPM, current output error amplifier for easy control loop pensation. Additional features include a latching PWM for enhanced noise immunity, integrated fault timer with auto start retry, adaptive motor start timer to insure start up, bined frequency generator / rotor lock output, Hall amplifier with propriety noise immunity circuitry for proper drive sequencing, patibility with differential non-buffered and buffered sensors, pinned out reference for Hall and circuit bias, fixed non-overlapping mutation delay for reduced power supply current spiking, two 40 V open drain top drivers, two 100 m A plementary MOSFET bottom drivers, programmable cycle-by-cycle current limiting, under voltage lockout and thermal shutdown protection, and an internal shunt regulator for use with higher voltage motors. Preliminary Specification - Subject to change without notice Preliminary Specification - Subject to change without notice Pin Configuration Phase 1 Bottom Drive Phase 2 Top Drive Signal Ground Reference Output Hall 1 24 Phase 2 Bottom Drive Phase 1 Top Drive VDD VD Driver Current Sense Input Driver Ground Signal Ground High Temp Maximum RPM Freq. Generator Rotor Lock Output Actual RPM Output PWM Control Input Required RPM Output Features - PWM closed loop speed control patible with industry standard digital temperature monitors - Thermistor...