1

2

3

5

4

EN

GND

IN+/IN-

VDD

OUT

UCC27518/19

Q1

IN

4.5 V to 18 V

C1

R1

EN

V+

UCC27518

UCC27519

www.ti.com

SLUSB33 – MAY 2012

Single Channel High-Speed, Low-Side Gate Driver

(Based On CMOS Input Threshold with 4-A Peak Source and 4-A Peak Sink)

Check for Samples: UCC27518 , UCC27519

1

FEATURES

APPLICATIONS

•

Low-Cost, Gate-Driver Device Offering

•

Switch-Mode Power Supplies

Superior Replacement of NPN and PNP

•

DC-to-DC Converters

Discrete Solutions

•

Companion Gate Driver Devices for Digital

•

Pin-to-Pin Compatible With TI's TPS2828 and

Power Controllers

the TPS2829

•

Solar Power, Motor Control, UPS

•

4-A Peak Source and 4-A Peak Sink

•

Gate Driver for Emerging Wide Band-Gap

Symmetrical Drive

Power Devices (such as GaN)

•

Fast Propagation Delays (17-ns typical)

•

Fast Rise and Fall Times (8-ns and 7-ns

DESCRIPTION

typical)

The UCC27518 and UCC27519 single-channel, high-

speed, low-side gate driver device is capable of

•

4.5-V to 18-V Single Supply Range

effectively

driving

MOSFET

and

IGBT

power

•

Outputs Held Low During VDD UVLO (ensures

switches. Using a design that inherently minimizes

glitch free operation at power-up and power-

shoot-through current, UCC27518 and UCC27519

down)

are capable of sourcing and sinking high, peak-

•

CMOS Input Logic Threshold (function of

current pulses into capacitive loads offering rail-to-rail

drive capability and extremely small propagation

supply voltage with hysteresis)

delay typically 17 ns.

•

Hysteretic Logic Thresholds for High Noise

Immunity

The UCC27518 and UCC27519 provide 4-A source,

4-A

sink

(symmetrical

drive)

peak-drive

current

•

EN Pin for Enable Function (allowed to be no

capability at VDD = 12 V.

connect)

The UCC27518 and UCC27519 are designed to

•

Output Held Low when Input Pins are Floating

operate over a wide VDD range of 4.5 V to 18 V and

•

Input Pin Absolute Maximum Voltage Levels

wide temperature range of -40°C to 140°C. Internal

Not Restricted by VDD Pin Bias Supply

Under Voltage Lockout (UVLO) circuitry on VDD pin

Voltage

holds output low outside VDD operating range. The

•

Operating Temperature Range of -40°C to

capability to operate at low voltage levels such as

140°C

below 5 V, along with best in class switching

characteristics,

is

especially

suited

for

driving

•

5-Pin DBV Package (SOT-23)

emerging wide band-gap power switching devices

such as GaN power semiconductor devices.

Typical Application Diagrams

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2012, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.