UCC27518DBVT屬于集成電路（IC）的柵極驅(qū)動器。由美國德州儀器公司制造生產(chǎn)的UCC27518DBVT柵極驅(qū)動器柵極驅(qū)動器電源管理集成電路 (PMIC) 可用于提供隔離、放大、參考位移、自舉或其他必要功能，這些功能可將來自電源轉(zhuǎn)換應(yīng)用中控制設(shè)備的信號連接到電源被控制通過的半導(dǎo)體設(shè)備（通常為 FET 或 IGBT）。任何特定設(shè)備提供的確切功能各不相同，但與它適合驅(qū)動的半導(dǎo)體配置相關(guān)。

1 Features

1? Low-Cost, Gate-Driver Device Offering Superior

Replacement of NPN and PNP Discrete Solutions

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

TPS2829 devices

? 4-A Peak Source and 4-A Peak Sink Symmetrical

Drive

? Fast Propagation Delays (17-ns Typical)

? Fast Rise and Fall Times (8-ns and 7-ns Typical)

? 4.5-V to 18-V Single Supply Range

? Outputs Held Low During VDD UVLO (Ensures

Glitch-Free Operation at Power Up and Power

Down)

? CMOS Input Logic Threshold (Function of Supply

Voltage With Hysteresis)

? Hysteretic Logic Thresholds for High Noise

Immunity

? EN Pin for Enable Function (Allowed to Be No

Connect)

? Output Held Low when Input Pins are Floating

? Input Pin Absolute Maximum Voltage Levels Not

Restricted by VDD Pin Bias Supply Voltage

? Operating Temperature Range of –40°C to 140°C

? 5-Pin DBV Package (SOT-23)

2 Applications

? Switched-Mode Power Supplies

? DC-DC Converters

? Companion Gate Driver Devices for Digital Power

Controllers

? Solar Power, Motor Control, UPS

? Gate Driver for Emerging Wide Band-Gap Power

Devices (Such as GaN)

3 Description

The UCC27518 and UCC27519 single-channel, high-

speed, low-side gate driver device can effectively

drive MOSFET and IGBT power switches. Using a

design that inherently minimizes shoot-through

current, UCC27518 and UCC27519 can source and

sink high, peak-current pulses into capacitive loads

offering rail-to-rail drive capability and extremely small

propagation delay typically 17 ns.

The UCC27518 and UCC27519 provide 4-A source,

4-A sink (symmetrical drive) peak-drive current capability at VDD = 12 V.

The UCC27518 and UCC27519 are designed to

operate over a wide VDD range of 4.5 V to 18 V and a wide temperature range of –40°C to 140°C. Internal

under voltage lockout (UVLO) circuitry on the VDD

pin holds output low outside VDD operating range.

The capability to operate at low voltage levels such

as below 5 V, along with best-in-class switching

characteristics, is especially suited for driving

emerging wide band-gap power switching devices such as GaN power semiconductor devices.