Description
CA-IS3211SBG
Single-channel, Opto-compatible Isolated Gate Driver
The CA-IS3211 devices are a family of single-channel, optocompatible isolated gate driver capable of sinking 6A andsourcing 5A currents. These devices operate with dualsupplies or a single supply of 10V to 30V (8V UVLO version)or 14V to 30V (12V UVLO) wide voltage range of VCC – VEE,making them ideal to drive power MOSFET, IGBT or siliconcarbide(SiC) transistors in various inverter, motor control orisolated power supply systems. The CA-IS3211 can beconfigured as low-side and high-side drivers. The CAIS3211V_ offers single terminal gate drive output: VOUT andthe CA-IS3211S_ offers dual separate output terminals:OUTH and OUTL. The driver output is pulled to low state toturn-off external power transistors when VCC supply input iseither not powered, is open-circuit or is in UVLO.
All devices have integrated digital galvanic isolation usingChipanalog’s proprietary capacitive isolation technologyand feature isolation for a withstand voltage rating of up to5.7kVRMS for 60 seconds with minimum common-modetransient immunity (CMTI) of 150kV/μs. These devices canbe used as drop-in replacement for the industry standardoptocoupler-based gate drivers while providing high CMTI,low propagation delay, small pulse width distortion andsmall part-to-part skew. The input stage is an analog diodewhich means long term reliability and excellent agingcharacteristics.
The CA-IS3211 devices are available either in a 6-pin or 8-pin wide-body SOIC packages, and 8-pin DUB package. Alldevices are rated for operation at junction temperatures of-40°C to +150°C.
Features
- 6A Peak Sink Current and 5A Peak Source Current
- Up to 30V Output Drive Supply Range with 8V (CAIS3211VB_) and 12V (CA-IS3211VC_) UVLO options
- Support Rail to Rail Output
- Up to 7V Reverse Voltage on Input-stage
- Matching Propagation Delay
- 70ns Propagation delay (typical)
- 25ns Part to part propagation delay matching (maximum)
- 35ns Pulse width distortion(maximum)
- -40°C to +150°C Operating Junction Temperature Range
- Robust Galvanic Isolation
- High lifetime: >40 years
- Up to 5.7kVRMS isolation rating for the wide-body packages and up to 3.75 kVRMS isolation rating for CA-IS3211VCU
- Common-mode transient immunity (CMTI) >±150kV/μs
- Package options
- 6-pin wide-body SOIC (J) Package
- 8-pin wide-body SOIC8 (G) Package
- 8-pin SOP (DUB) package
- Safety regulatory approvals
- 8000 VPK reinforced isolation per DIN V VDE V0884-17: 2021-10 (wide-body SOIC)
- 5300 VPK basic isolation per DIN V VDE V0884-17:2021-10 (DUB8)
- 5.7 kVRMS isolation for 1 minute according to UL1577 (wide-body SOIC)
- 3.75 kVRMS isolation for 1 minute according to UL 1577(DUB8)
- TUV certification per EN61010-1:2010+A1
Applications
- Isolated DC-DC and AC-DC Converters
- Motor Contro
- Uninterruptible Power Supply (UPS)
- Isolated Gate Driver for Inverters

