SY21621HKP-Products-Silergy Corp

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SY21621HKP (SY67221HKP )

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Dual H-bridge Stepper Motor Driver IC with I2C Integrated
Datasheet
SY21621HKP Dual H-bridge Stepper Motor Driver IC with I2C Integrated Datasheet
    Part numberSY21621HKP
    Vin (max) (V)18
    Vin (min) (V)2.7
    Number of half bridges2
    RDS(on) (HS + LS) (mΩ)670
    Peak output current (A)1.85
    Sleep current (µA)3.8
    Integrated FETs(Yes/No)Yes
    Control interfaceHW/I2C
    FeaturesCurrent regulation, Mixed decay, Integrated current sensing, Open circuit detection
    Operating temperature range(°C)-40 to 85
    PackageTSSOP16
    Functional safety category
    • Power Supply Voltage Range from 2.7V to 18V
    • Different Operation Mode
    • --Two H-bridge Operation with Four INx Input
    • --Two H-bridge Operation with Two INx Input
    • --One H-bridge Operation with Two INx Input, Parallel Operation
    • --Four Half-H-bridge Operation with Four INx Input
    • Maximum Drive Current of 1.5A RMS Current for Each H-bridge@TA=25°C
    • Internal Integrated Open Circuit Detection, Over Current Protection, Short Circuit Protection, Under Voltage Lockout and Thermal Shutdown
    • Low-power Sleep Mode
    • Fault Indication
    • TSSOP16 Package

    The SY21621 is a four half-bridge driver solution for DC brush motors, bipolar stepper motors, solenoids, or other inductive loads. The highly integrated half-H-bridge driver block consists of half-H-bridge with internal logic control, gate driver, over current protection and charge pump circuit. I2C communication is also supported.

    The SY21621 provides complete protection functions with a fault output pin for open circuit detection (OCD), over current protection (OCP), short circuit protection (SCP), under voltage lockout (UVLO) and thermal shutdown (TSD). A low-power sleep mode is also provided. The device is packaged in a 16-pin TSSOP.

    Technical Documentation