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Motor drive

CST2466

      The CST2466/CST2466E provides an integrated motor driver for cameras, consumer products, toys and other application with low-voltage or battery-powered motion control.The
      
CST2466/CST2466E can supply up to 2.1A of output DC current. It operates on a motor power supply (VM) from 2 to 11V and a device power supply voltage (VCC) of 2V to 6V. Ultra- low RDS-ON allows SOP-8 package available.
      The 
CST2466/CST2466E has a PWM (INA、INB) input interface. Full protections are integrated with over-current protection, under-voltage lockout and over-temperature shutdown.
  


    CST2466/CT2466E DESCRIPTION:
          The CST2466/CST2466E provides an integrated motor driver for cameras, consumer products, toys and other application with low-voltage or battery-powered motion control.
          The 
    CST2466/CST2466E can supply up to 2.1A of output DC current. It operates on a motor power supply (VM) from 2 to 11V and a device power supply voltage (VCC) of 2V to 6V. Ultra- low RDS-ON allows SOP-8 package available.
          The 
    CST2466/CST2466E has a PWM (INA、INB) input interface. Full protections are integrated with over-current protection, under-voltage lockout and over-temperature shutdown.

    CST2466/CT2466E FEATURE:
    H-Bridge Motor Driver
    DC Motor or Other Loads
    Low On-Resistance :280mΩ
    2.1-A Maximum DC Drive Current
    Separate Motor and Logic Supply
    Motor VM : 2 to 11V
    Logic VCC : 2V to 6V
    Low-Stand-by Current ≤ 2uA/VM=VCC=5V
    Small Package and Footprint
    8-Pin ESOP with Thermal PAD
    8-Pin SOPProtection Features
    VCC Under-voltage Lockout
    Over-Current Protection
    Thermal Shutdown

    CST2466/CT2466E APPLICATION:
    Electric toothbrush, Electric lock
    Cameras
    DSLR Lenses
    Consumer Products
    Toys
    Robotics

    CST2466/CT2466E PCB LAYOUT GUIDANCE:
    The capacitor C1 connected between the GND and the VM pins must be located as close as possible to the CST2466/CST2466E chip. In different applications, C1(show as above) is recommended to use a 0.1uF in 3V applications; a 1uF is recommended for 4.5V applications; a 4.7uF is recommended for 6V applications; in 9.6V applications, it is recommended to use 22uF, all these capacitors should be SMD package. The connection between the negative pole of the capacitor and the GND terminal of the IC should be as short as possible. That is to say, the line route should not far away.
    When the application board has capacitors while filtering for other chips that is far away from the CST2466/CST2466E, it need to place a small capacitor for CST2466/CST2466E.
    The capacitor C3 preferably soldering to the motor poles instead of placing it on the PCB. When it is inconvenient to soldering on the motor poles, it can be mount on the PCB. The following diagram is the PCB layout reference .

    CST2466/CT2466E SOP8 PIN DESCRIPTION:



    CST2466/CT2466E eSOP8 PIN DESCRIPTION:

    CST2466/CT2466E Definition of foot position:
    Pin number Pin name I/O Description
    1 VM -- Motor power supply
    2 OUTA O Motor drive output A
    3 OUTB O Motor drive output B
    4 GND -- Ground
    5 INB I Logic input B
    6 INA I Logic input A
    7 NC -- No connection
    8 VCC -- Logic power supply

    CST2466/CT2466E ABSOLUTE MAXIMUM RATINGS
    Parameters Symbol Value Unit
    Logic power supply voltage , VCC VCC 7 V
    Motor power supply voltage , VM VM 11 V
    Power dissipation Pd SOP-8 0.96 W
    Operating Temperature, Top Topr -20~85
    Junction temperature Tj 150
    Storage Temperature, Tstg Tstg -55~150
    Manual welding temperature 350~370
    Peak output current Iop 3.5 A
    Continuous Output Current Ioc 2.1 A
    PWM Frequency fPWM 33 KHz

    CST2466/CT2466E RECOMMENDED OPERATING CONDITIONS(Ta=25℃)
    Parameter Symbol Rating Unit
    Power supply voltage VCC 2.0~6 V
    Motor Power supply voltage VM 9.6 V
    High Input Voltage VIN 0.5xVCC V
    Low Input Voltage VIN -0.8~0 V
    Continuous Output Current IOUT -1500~1500 mA
    Note:The maximum continuous output current depends on the heat dissipation conditions. 2.1A(ESOP8) 1.68A(SOP8)

    CST2466/CT2466E ELECTRICAL CHARACTERISTICS
    (Ta=25℃,VCC=3V,VM=6V,unless otherwise specified )
    Parameter Symbol Test Condition Min Typ Max Unit
    Overall Circuit
    Standby Current ICCST INA=INB=GND 1 5 uA
    Input control
    High Input Voltage VINH 2 4 6 V
    Low Input Voltage VINL 0.8 V
    PWM Drive Frequency FPWM 20 33 KHz
    Reverse brake Time Required RVBT from INA to INB or
    from INB to INA
    200 500 uS
    High Input Current IINH VIN=3V 250 400 uA
    Low Input Current IINL VIN=0V -1 0 uA
    Pull Down Resistor RIN 12
    Driving
    Output Impedance(HS+LS) RON Io=±200mA 0.26 0.6 Ω
    Protection Circuits
    Thermal shutdown temperature TTSD Die temperature 150

    CST2466/CT2466E INPUT AND OUTPUT TRUTH TABLE
    Input Output Function
    INA INB OUTA OUTB
    L L Hi-Z Hi-Z Stand-by(Stop)
    H L H L A CH output
    L H L H B CH output
    H H L L Brake
    Please submit your basic information and send an email Sales@ChipSourceTek.com , or call us at 13823761625 (the same number as wechat), and we will contact you as soon as possible!

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