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UCC27834

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200-V, 4-A/4-A Half-Bridge Driver with Interlock and 7-V UVLO

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Data sheet

UCC27834

ACTIVE
Data sheet Order now

Product details

Bootstrap supply voltage (max) (V) 230 Power switch IGBT, MOSFET Peak output current (A) 4 Operating temperature range (°C) -40 to 150 Undervoltage lockout (typ) (V) 8 Rating Catalog Rise time (ns) 7 Fall time (ns) 6
Bootstrap supply voltage (max) (V) 230 Power switch IGBT, MOSFET Peak output current (A) 4 Operating temperature range (°C) -40 to 150 Undervoltage lockout (typ) (V) 8 Rating Catalog Rise time (ns) 7 Fall time (ns) 6
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Dual independent inputs for high-side and low-side drivers with interlock (UCC27834) or no interlock (UCC27884)
  • Maximum bootstrap voltage of +230V (HB pin)
  • 8.5V to 20V VDD bias recommended range
  • Peak output current of 3.5A source, 4A sink
  • Fast propagation delay (29ns typical)
  • Tight propagation delay matching between HO/LO (<5ns max)
  • dV/dt immunity of 100V/ns
  • Low quiescent supply current draw of 150µA (typical) on VDD and 90µA (typical) on HB
  • Built-in 8V UVLO protection for both high and low side channels
  • Floating channel designed for bootstrap operation
  • Available in standard SOIC-8 package
  • All parameters specified over temperature range, –40°C to +150°C
  • Dual independent inputs for high-side and low-side drivers with interlock (UCC27834) or no interlock (UCC27884)
  • Maximum bootstrap voltage of +230V (HB pin)
  • 8.5V to 20V VDD bias recommended range
  • Peak output current of 3.5A source, 4A sink
  • Fast propagation delay (29ns typical)
  • Tight propagation delay matching between HO/LO (<5ns max)
  • dV/dt immunity of 100V/ns
  • Low quiescent supply current draw of 150µA (typical) on VDD and 90µA (typical) on HB
  • Built-in 8V UVLO protection for both high and low side channels
  • Floating channel designed for bootstrap operation
  • Available in standard SOIC-8 package
  • All parameters specified over temperature range, –40°C to +150°C

The UCC278X4 is a 230V half-bridge gate driver with 3.5A source, 4A sink current, targeted to drive power MOSFETs. The device consists of one ground-referenced channel (LO) and one floating channel (HO) which is designed to drive half-bridge configured MOSFETs operating with bootstrap power supplies. The device features fast propagation delays and excellent delay matching between both channels.The UCC278X4 allows a wide VDD operating voltage of 8.5V to 20V to support a wider range of gate voltage drive, as well as UVLO protection for both the low-side (VDD) and the high-side (HB) bias supplies. The UCC27834 includes an interlock function option to prevent both outputs from being turned on simultaneously

The device features robust drive with excellent noise and transient immunity including high dV/dt tolerance (100V/ns), and wide negative transient safe operating area (NTSOA) on the switch node (HS). The UCC278X4 is available in the SOIC-8 pin package and is rated to operate from –40°C to 150°C.

The UCC278X4 is a 230V half-bridge gate driver with 3.5A source, 4A sink current, targeted to drive power MOSFETs. The device consists of one ground-referenced channel (LO) and one floating channel (HO) which is designed to drive half-bridge configured MOSFETs operating with bootstrap power supplies. The device features fast propagation delays and excellent delay matching between both channels.The UCC278X4 allows a wide VDD operating voltage of 8.5V to 20V to support a wider range of gate voltage drive, as well as UVLO protection for both the low-side (VDD) and the high-side (HB) bias supplies. The UCC27834 includes an interlock function option to prevent both outputs from being turned on simultaneously

The device features robust drive with excellent noise and transient immunity including high dV/dt tolerance (100V/ns), and wide negative transient safe operating area (NTSOA) on the switch node (HS). The UCC278X4 is available in the SOIC-8 pin package and is rated to operate from –40°C to 150°C.
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* Data sheet UCC278X4 High-Speed, 230V Half-Bridge Driver with 3.5A, 4A Drive Strength and up to 100V/ns Noise Immunity datasheet PDF | HTML 24 Sep 2025

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Evaluation board

UCC27288EVM — UCC27288 100-V, 3-A, 8-V UVLO half-bridge gate driver evaluation module

UCC27288EVM is designed for evaluating UCC27288D, which is a 100-V half bridge gate driver with 2.5-A peak source current and 3.5-A peak sink current capability. This EVM serves as a reference design for driving power MOSFETs with up to 20-V drive voltage.
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