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UCC27834-Q1
  • UCC27834-Q1
  • UCC27834-Q1

UCC27834-Q1

ACTIVE

Automotive 230V 4A half-bridge gate driver with 8V UVLO and interlock

Texas Instruments UCC27834-Q1 Product Info

1 April 2026 0

Parameters

Bootstrap supply voltage (max) (V)

230

Power switch

IGBT, MOSFET

Input supply voltage (min) (V)

8.5

Input supply voltage (max) (V)

20

Peak output current (A)

4

Operating temperature range (°C)

-40 to 150

Undervoltage lockout (typ) (V)

8

Rating

Automotive

Propagation delay time (µs)

0.029

Rise time (ns)

7.5

Fall time (ns)

6.5

Switch node voltage (V)

-23

Features

Interlock

Package

SOIC (D)-8-29.4 mm² 4.9 x 6

Features

  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1
  • Dual independent inputs for high-side and low-side drivers with interlock (UCC27834-Q1) or no interlock (UCC27884-Q1)
  • Maximum bootstrap voltage: +230V (HB pin)
  • VDD bias recommended range: 8.5V to 20V
  • Peak output current: 3.5A source, 4A sink
  • Fast propagation delay: 29ns typical
  • Tight propagation delay matching between HO/LO: <5ns maximum
  • dV/dt immunity: 100V/ns
  • Low quiescent supply current draw
    • 150µA (typical) on VDD
    • 90µA (typical) on HB
  • Built-in UVLO protection for both high and low side channels: 8V
  • Floating channel designed for bootstrap operation
  • Available in standard SOIC-8 package
  • All parameters specified over temperature range: –40°C to +150°C
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1
  • Dual independent inputs for high-side and low-side drivers with interlock (UCC27834-Q1) or no interlock (UCC27884-Q1)
  • Maximum bootstrap voltage: +230V (HB pin)
  • VDD bias recommended range: 8.5V to 20V
  • Peak output current: 3.5A source, 4A sink
  • Fast propagation delay: 29ns typical
  • Tight propagation delay matching between HO/LO: <5ns maximum
  • dV/dt immunity: 100V/ns
  • Low quiescent supply current draw
    • 150µA (typical) on VDD
    • 90µA (typical) on HB
  • Built-in UVLO protection for both high and low side channels: 8V
  • Floating channel designed for bootstrap operation
  • Available in standard SOIC-8 package
  • All parameters specified over temperature range: –40°C to +150°C

Description

The UCC278X4-Q1 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-Q1 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-Q1 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-Q1 is available in the SOIC-8 pin package and is rated to operate from –40°C to 150°C.

The UCC278X4-Q1 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-Q1 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-Q1 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-Q1 is available in the SOIC-8 pin package and is rated to operate from –40°C to 150°C.

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