Description:

The UCC27712 is a 620-V high-side and low-sidegate driver with 1.8-A source, 2.8-A sink current,targeted to drive power MOSFETs or IGBTs.The recommended VDD operating voltage is 10-V to20-V for IGBT's and 10-V to 17-V for powerMOSFETs.The UCC27712 includes protection features wherethe outputs are held low when the inputs are left openor when the minimum input pulse width specificationis not met. Interlock and deadtime functions preventboth outputs from being turned on simultaneously. Inaddition, the device accepts a wide range bias supplyrange and offers UVLO protection for both the VDDand HB bias supply.Developed with TI's state of the art high-voltagedevice technology, the device features robust drivewith excellent noise and transient immunity includinglarge negative voltage tolerance on its inputs, highdV/dt tolerance, wide negative transient safeoperating area (NTSOA) on the switch node (HS),and interlock.The device consists of one ground-referencedchannel (LO) and one floating channel (HO) which isdesigned for operating with bootstrap or isolatedpower supplies. The device features fast propagationdelays and excellent delay matching between bothchannels. On the UCC27712, each channel iscontrolled by its respective input pins, HI and LI.

Features:

• High-side and low-side configuration

• Dual inputs with output interlock and 150-nsdeadtime

• Fully operational up to 620-V, 700-V absolutemaximum on HB pin

• 10-V to 20-V VDD recommended range

• Peak output current 2.8-A sink, 1.8-A source

• dv/dt immunity of 50 V/ns

• Logic operational up to –11 V on HS pin

• Negative voltage tolerance on inputs of –5 V

• Large negative transient safe operating area

• UVLO protection for both channels

• Small propagation delay (100-ns typical)

• Delay matching (12-ns typical)

• Floating channel designed for bootstrap operation

• Low quiescent current

• TTL and CMOS compatible inputs

• Industry standard SOIC-8 package

• All parameters specified over temperature range,–40 °C to +125 °C 

Applications:

• Motor drive (stepper motors, HVAC, fans, powertools, robotics, drones)

• Bridge converters in offline AC/DC power supplies

• High-density switch mode power supplies forserver, telecom, IT and industrial infrastructures

• DC-to-AC inverters