Si827x Data Sheet4 Amp ISOdriver with High Transient (dV/dt) ImmunityThe Si827x isolators are ideal for driving power switches used in a wide variety of powersupply, inverter, and motor control applications. The Si827x isolated gate drivers utilizeSilicon Laboratories' proprietary silicon isolation technology, supporting up to 2.5kVRMS withstand voltage per UL1577 and VDE0884. This technology enables industryleading common-mode transient immunity (CMTI), tight timing specifications, reducedvariation with temperature and age, better part-to-part matching, and extremely high reli-ability. It also offers unique features such as separate pull-up/down outputs, driver shut-down on UVLO fault, and precise dead time programmability. The Si827x series offerslonger service life and dramatically higher reliability compared to opto-coupled gate driv-ers.The Si827x drivers utilize Silicon Labs' proprietary silicon isolation technology, whichprovides up to 2.5 kVRMS withstand voltage per UL1577 and fast 60 ns propagationtimes. Driver outputs can be grounded to the same or separate grounds or connected toa positive or negative voltage. The TTL level compatible inputs with >400 mV hysteresisare available in individual control input (Si8271/2/3/5) or PWM input (Si8274) configura-tions. High integration, low propagation delay, small installed size, flexibility, and cost-effectiveness make the Si827x family ideal for a wide range of isolated MOSFET/IGBTand SiC or GaN FET gate drive applications.Automotive Grade is available for certain part numbers. These products are built usingautomotive-specific flows at all steps in the manufacturing process to ensure the robust-ness and low defectivity required for automotive applications.KEY FEATURES• Single, dual, or high-side/low-side drivers• Single PWM or dual digital inputs• High dV/dt immunity:• 200 kV/µs CMTI• 400 kV/µs Latch-up• Separate pull-up/down outputs for slewrate control• Wide supply range:• Input supply: 2.5–5.5 V• Driver supply: 4.2–30 V• Very low jitter of 200 ps p-p• 60 ns propagation delay (max)• Dedicated enable pin• Silicon Labs’ high performance isolationtechnology:• Industry leading noise immunity• High speed, low latency and skew• Best reliability available• Compact packages:• 8-pin SOIC• 16-pin SOIC• QFN-14 (pin to pin compatible withLGA-14 packages)• Wide temperature range:• –40 to 125 °C• AEC-Q100 Qualified• Automotive-grade OPNs available• AIAG compliant PPAP documentationsupport• IMDS and CAMDS listing supportIndustrial Applications• Switch-mode Power Supplies• Solar Power Inverters• Motor control and drives• Uninterruptible Power Supplies• High-Power Class D AmplifiersSafety Regulatory Approvals• UL 1577 recognized• Up to 2500 Vrms for 1 minute• CSA component notice 5A approval• IEC 60950-1 (reinforced insulation)• VDE certification conformity• VDE 0884 Part 10• CQC certification approval• GB4943.1Automotive Applications• On-board chargers• Battery management systems• Charging stations• Traction inverters• Hybrid Electric Vehicles• Battery Electric Vehiclessilabs.com | Building a more connected world.Rev. 1.01
