NC NC HI HS HO LI V HB SS V LO DD High-Frequency, High Side and Low Side Gate Driver FAN8811 The FAN8811 is high side and low side gatedrive IC designed for highvoltage, highspeed, driving MOSFETs operating up to 80 V. The FAN8811 integrates a driver IC and a bootstrap diode. The www.onsemi.com driver IC features low delay time and matched PWM input propagation delays, which further enhance the performance of the part. The high speed dual gate drivers are designed to drive both the highside and lowside of NChannel MOSFETs in a half bridge or synchronous buck configuration. The floating highside driver is capable of operating with supply voltages of up to 80 V. In the dual gate driver, the high side and low side each have independent inputs to WDFN10 4x4, 0.8P allow maximum flexibility of input control signals in the application. CASE 511DU The PWM input signal (high level) can be 3.3 V, 5 V or up to V DD logic input to cover all possible applications. The bootstrap diode for MARKING DIAGRAM the highside driver bias supply is integrated in the chip. The highside driver is referenced to the switch node (HS) which is typically the source pin of the highside MOSFET and drain pin of the lowside MOSFET. The lowside driver is referenced to V which is SS ZXYTT typically ground. The functions contained are the input stages, UVLO FAN8811T protection, level shift, bootstrap diode, and output driver stages. MPX Features Drives two NChannel MOSFETs in High & Low Side Integrated Bootstrap Diode for High Side Gate Drive FAN8811T= Specific Device Code Bootstrap Supply Voltage Range up to 100 V Z = Plant Code X= 1Digit Year Code 3 A Source, 6 A Sink Output Current Capability Y= 1Digit Week Code Drives 1 nF Load with Typical Rise/Fall Times of 6 ns/4 ns TT = 2Digit Die Run Code MP = Package Type TTL Compatible Input Thresholds X = Reel Package Wide Supply Voltage Range 7.5 V to 16 V (Absolute Maximum 18 V) Fast Propagation Delay Times (Typ. 30 ns) ORDERING INFORMATION 2 ns Delay Matching (Typical) See detailed ordering and shipping information in the package UnderVoltage Lockout (UVLO) Protection for Drive Voltage dimensions section on page 13 of this data sheet. Operating Junction Temperature Range of 40C to 125C These Devices are PbFree, Halogen Free/BFR Free and are RoHS Compliant Typical Applications Power Supplies for Telecom and Datacom HalfBridge and FullBridge Converters SynchronousBuck Converters TwoSwitch Forward Converters ClassD Audio Amplifiers Semiconductor Components Industries, LLC, 2018 1 Publication Order Number: July, 2021 Rev. 4 FAN8811/DSupply Voltage R HGATE FAN8811 TYPICAL APPLICATIONS L VDC Supply Voltage L O C OUT R LGATE A V DD LO D C IN HB V SS C HB HO LI FAN8811 PWM FEEDBACK Controller HS HI NC NC Figure 1. Application Schematic Synchronous Buck Converter VDC SECONDARY SIDE R HGATE CIRCUIT NC NC HI HS FAN8811 PWM LI HO C HB Controller ISOLATION V HB AND SS FEEDBACK R LGATE LO VDD C IN Figure 2. Application Schematic Half Bridge Converter www.onsemi.com 2