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            AW8646QNR

            AW8646 Dual H-Bridge Stepper Motor Driver

            The AW8646 is a flexible microstepping stepper motor driver. It is designed to operate bipolar stepper motor with up to 1/32th step mode for mobile phones, tablets, and other automated equipment applications. The device can be controlled by simple STEP/DIR interface allowing easy interfacing to controller circuits. The output block of each H-bridge driver consists of N-channel and P-channel power MOSFETs configured as full H-bridges to drive the motor windings. Pins allow configuration of the motor in full-step up to 1/32th step modes. Decay mode is configurable so that adaptive decay, slow decay, fast decay, and mixed decay can be used. A low power sleep mode is provided to achieve a very-low quiescent current draw. AW8646 is capable of driving up to 1.4A (Full Scale) or 1A (RMS) current per H-Bridge The device offers a complete set of protection features including UVLO, overcurrent protection, short circuit protection, and over temperature. Fault conditions are indicated via the nFAULT pin.

            產品特性


            l  3V to 12V Supply Voltage Range

            l  1.4A Full Scale current per H-Bridge

            l  Rdson HS + LS: Typical 0.8Ω

            l  Support up to 1/32th Microstepping

            l  Decay Modes supported:

            n  Adaptive Decay Technology

            n  Mixed Decay

            n  Slow Decay

            n  Fast Decay

            l  Support 1.8V Logic Level

            l  Programmable off-time

            l  10,20, or 30μs off-time

            l  Programmable Motor Torque Current

            l  Short-Circuit Protection, Over-Temperature

            l  Protection, Under-Voltage Protection

            l  Fault Condition Indication

            l  QFN 4mm X4mm X0.85mm-24L package


            Datasheet

            Application note

            產品型號 文檔格式 大小 下載
            • Motor Type
              Micro Step
              Decay Mode
              In/Output Voltage(V)
              IO Logic (V)
              Max Output current(A)
              Istandby (μA)
              TOC (us)
              Toff (us)
              Package (mm)
            • AW8646QNR

              Step Motor
              1/32
              Adaptive Tune
              3~12
              1.4
              1.2
              0.1
              10
              WBQFN 4X4-24L
            封裝形式 引腳數 長(mm) 寬(mm) 厚(mm) 引腳間距(mm) 散熱盤 文檔下載
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            国产疯狂女同互磨高潮在线看
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