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ALLEGRO A5985GETTR-TRoHS

Manufacturer
ALLEGRO
MPN
A5985GETTR-T
LCSC Part #
C459296
Packaging
QFN-28-EP(5x5)
Customer #
Key Attributes
QFN-28-EP(5x5) Motor Drivers, Controllers RoHS
Datasheetpdf iconALLEGRO A5985GETTR-T
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QtyUnit Price(Reference Only)Total Amount
1+$ 3.5228$ 3.52
10+$ 3.4157$ 34.16
30+$ 3.3448$ 100.34
100+$ 3.2739$ 327.39
Standard Packaging1500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Motor Drivers, Controllers
ManufacturerALLEGRO
PackagingQFN-28-EP(5x5)
Drive TypeBipolar Driver
Number of H-bridges2
FeaturesMotor step-out prevention function;Short-Circuit Protection;Over temperature protection;Under-voltage lockout;Overcurrent Protection;Built-in charge pump;Dead-time / shoot-through protection
TechnologyYes
Operating temperature-40℃~+105℃
Step Resolution32
Output Current2A
Control Voltage-
RDS(on)640mΩ
Motor Drive Voltage(Vm)-
Interface-
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging1500
Sales UnitPiece

Introduction

AI Translation

The A5985 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors from full-step up to 1/32 step modes. Step modes are selectable by MSx logic inputs. It has an output drive capacity of up to 40 V and ±2 A. A5985 introduces a proprietary Adaptive Percent Fast Decay (APFD) algorithm to optimize the current waveform over a wide range of stepper speeds and stepper motor characteristics. APFD adjusts on-the-fly the amount of fast decay during a PWM cycle to keep current ripple at a low level over the various operating conditions. This adaptive feature improves performance of the system resulting in reduced audible motor noise, reduced vibration, and increased step accuracy. The translator is the key to the easy implementation of the A5985. Simply inputting one pulse on the STEP input drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. The A5985 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened. Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation. Internal circuit protection includes: thermal shutdown with hysteresis, undervoltage lockout (UVLO), and crossover-current protection. Special power-on sequencing is not required. The A5985 is supplied in a surface-mount QFN package (ET), 5 mm × 5 mm, with a nominal overall package height of 0.90 mm and an exposed pad for enhanced thermal dissipation. It is lead (Pb) free (suffix -T), with 100% matte-tin-plated leadframes.

Features

AI Translation
  • Drop-in replacement for A4988
  • Proprietary Adaptive Percent Fast Decay option
  • Low RDS(on) outputs
  • Single supply
  • Microstepping up to 32 microsteps per full step
  • Full torque step modes
  • Short-to-ground protection
  • Shorted load protection
  • Short-to-battery protection
  • Fault output
  • Low current Sleep mode, <10 μA
  • Thin profile QFN
  • Thermal shutdown circuitry
  • Synchronous rectification for low power dissipation
  • Internal UVLO
  • Crossover-current protection

Applications

AI Translation
  • Video Security Cameras
  • Robotics
  • Printers
  • ATM
  • Scanners POS