供应DIODES品牌 AZ23C6V8-7-F 原装现货联系QQ1640951075

Drop-in replacement for A4984Proprietary Adaptive Percent Fast Decay optionLow RDS(on)outputsSingle supplyMicrostepping up to 32 microsteps per full stepFull torque step modesShort-to-ground protectionShorted load protectionShort-to-battery protectionFault outputLow current Sleep mode， < 10 μANo smoke no fire (NSNF) compliance (ET package)Thin profile QFN and_TSSOP packagesThermal shutdown circuitrySynchronous rectification for low power dissipationInternal UVLOCrossover-current protectionDESCRIPTIONThe A5984 is a complete microstepping motor driver withbuilt-in translator for easy operation. It is designed to operatebipolar stepper motors from full-step up to 1/32 step modes.Step modes are selectable by MSx logic inputs. It has an outputdrive capacity of up to 40 V and_±2 A.A5984 introduces a proprietary Adaptive Percent Fast Decay(APFD) algorithm to optimize the current waveform over awide range of stepper speeds and_stepper motor characteristics.APFD adjusts on-the-fly the amount of fast decay during aPWM cycle to keep current ripple at a low level over thevarious operating conditions. This adaptive feature improvesperformance of the system resulting in reduced audible motornoise， reduced vibration， and_increased step accuracy.The translator is the key to the easy implementation of theA5984. Simply inputting one pulse on the STEP input drivesthe motor one microstep. There are no phase sequence tables，high frequency control lines， or complex interfaces to program.The A5984 interface is an ideal fit for applications where acomplex microprocessor is unavailable or is overburdened.The ET package meets customer requirements for no smokeno fire (NSNF) designs by adding no-connect pins betweencritical output， sense， and_supply pins. So， in the case of apin-to-adjacent-pin short， the device does not cause smokeor fire. Additionally， the device does not cause smoke or firewhen any pin is shorted to ground or left open.