CA-IS3221BN

f_ico02.svg

Active

6A Sink/4A Source, 5.7kVRMS Isolated Dual-channel Gate Driver

The CA-IS322x devices are a family of dual-channel isolatedgate drivers capable of sinking 6A and sourcing 5A peakcurrents. These devices have very fast switching time,combined with short propagation delays (56ns, typ) andsmall pulse width distortion, making them ideal to drivepower MOSFET, IGBT or silicon-carbide(SiC) transistorswith up to 5MHz frequency in various inverter, isolatedpower supply or motor control applications.

All devices have integrated digital galvanic isolation usingChipanalog’s proprietary capacitive isolation technology.They feature isolation for a withstand voltage rating of3.75kVRMS for 60 seconds with minimum common-modetransient immunity (CMTI) of 100V/ns. The internalfunctional isolation between driver A and driver B on thesecondary-side allows up to 1500V DC working voltage.

The CA-IS322x family of devices can be configured as duallow-side, dual high-side or half-bridge drivers withprogrammable dead-time. The enable control (EN pin forthe CA-IS3222) and disable control (DIS pin for theCA-IS3221) allow both driver A and driver B outputs to bequickly set to logic-low, turning off the external powertransistor. They also have a default-low output. The defaultis the state the output assumes when the input is eithernot powered or is open-circuit. Also, the driver outputs areset to logic-low when input-side or output-side supply is inUVLO, or the device is disabled.

The CA-IS322x devices accept 3V to 18V VCCI supply and upto 25V VDD_ wide supply range. They are available in a16-pin narrow-body SOIC package. The devices are ratedfor operation at ambient temperatures of -40°C to +125°C.

CA-IS3221BN.jpg
  • Features

    Support Broad Range of Applications

    Dual low-side, dual high-side drivers
    Half-bridge drivers

    6A Peak Sink Current and 5A Peak Source Current

    Wide Supply Range

    3V to 18V Input-side VCCI supply range
    Up to 25V VDD_ output drive supply
    Provide 6V、8V and 12V precision UVLO options

    Matching Propagation Delay

    56ns Propagation delay (Typ.)
    5ns Propagation delay matching (Max.)
    7ns Pulse width distortion(Max.)

    20ns Minimum pulse width(Typ.)

    Programmable Overlap and Dead-time

    -40°C to +125°C Operating Temperature Range

    Robust Galvanic Isolation

    High lifetime: >40 years
    Up to 5.7kVRMS (wide SOIC package) isolation rating
    Common-mode transient immunity (CMTI) >±100V/ns
    Withstands up to 12.8kV surge

    Package options

    Wide-body SOIC16(W) package
    Wide-body SOIC14(K) package

    Safety regulatory approvals

    8000 VPK reinforced isolation per DIN V VDE V0884-17: 2021-10
    5.7 kVRMS isolation for 1 minute according to UL1577

  • Applications

    • Isolated DC-DC and AC-DC Converters

    • Motor Control

    • LED Lighting

    • Uninterruptible Power Supply (UPS)

    • Isolated Gate Driver for Inverters

    • HEV/EV Battery Charger

  • Device Information

    Part Number Package Package Size (Nominal Value)

    CA-IS3221

    CA-IS3222

    SOIC16-NB(N) 9.9 mm x 3.9 mm
  • Simplified Functional Diagram

    cais3221x.png