UCC27511

UCC27512

www.ti.com

SLUSAW9C – FEBRUARY 2012 – REVISED JUNE 2012

Single Channel High-Speed, Low-Side Gate Driver

(with 4-A Peak Source and 8-A Peak Sink)

Check for Samples: UCC27511, UCC27512

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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

•

4-A Peak Source and 8-A Peak Sink

Power Controllers

Asymmetrical Drive

•

Solar Power, Motor Control, UPS

•

Strong Sink Current Offers Enhanced

•

Gate Driver for Emerging Wide Band-Gap

Immunity Against Miller Turn On

Power Devices (such as GaN)

•

Split Output Configuration (allows easy and

independent adjustment of turn-on and turn-

DESCRIPTION

off speeds) in the UCC27511

The UCC27511 and UCC27512 single-channel, high-

•

Fast Propagation Delays (13-ns typical)

speed, low-side gate driver device is capable of

effectively

driving

MOSFET

and

IGBT

power

•

Fast Rise and Fall Times (9-ns and 7-ns

switches. Using a design that inherently minimizes

typical)

shoot-through current, UCC27511 and UCC27512

•

4.5-V to 18-V Single Supply Range

are capable of sourcing and sinking high, peak-

•

Outputs Held Low During VDD UVLO (ensures

current pulses into capacitive loads offering rail-to-rail

drive capability and extremely small propagation

glitch free operation at power-up and power-

delay typically 13 ns.

down)

•

TTL and CMOS Compatible Input Logic

The UCC27511 and UCC27512 provides 4-A source,

8-A sink (asymmetrical drive) peak-drive current

Threshold, (independent of supply voltage)

capability. Strong sink capability in asymmetrical drive

•

Hysteretic Logic Thresholds for High Noise

boosts immunity against parasitic, Miller turn-on

Immunity

effect. The UCC27511 device also features a unique

•

Dual Input Design (choice of an inverting (IN-

split output configuration where the gate-drive current

pin) or non-inverting (IN+ pin) driver

is sourced through OUTH pin and sunk through

configuration)

OUTL pin. This unique pin arrangement allows the

user to apply independent turn-on and turn-off

–

Unused Input Pin can be Used for Enable

resistors to the OUTH and OUTL pins respectively

or Disable Function

and easily control the switching slew rates.

•

Output Held Low when Input Pins are Floating

UCC27511 and UCC27512 are designed to operate

•

Input Pin Absolute Maximum Voltage Levels

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

Not Restricted by VDD Pin Bias Supply

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

Voltage

Voltage Lockout (UVLO) circuitry on VDD pin holds

•

Operating Temperature Range of -40°C to

output

low

outside

VDD

operating

range.

The

140°C

capability to operate at low voltage levels such as

below 5 V, along with best in class switching

•

6-Pin DBV (SOT-23) and 6-Pin DRS (3mm x 3

characteristics,

is

especially

suited

for

driving

mm WSON with exposed thermal pad)

emerging wide band-gap power switching devices

Package Options

such as GaN power semiconductor devices.

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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.