UCC27834QDRQ1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications

– Device temperature grade 1

• Dual independent inputs for high-side and lowside

drivers with interlock (UCC27834-Q1) or no

interlock (UCC27884-Q1)

• 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

2 Applications

• Motor drive (stepper motors, fans, power tools,

robotics, drones, servos)

• E-bikes and E-scooters

• Solar boost and buck-boost MPPT

• Microinverters

3 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 groundreferenced

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.