UCC27511ADBVRG4.A中文资料德州仪器数据手册PDF规格书

1 Features

• Input Pins Capable of Withstanding –5V Below

GND pin

• Low-Cost Gate-Driver Device Offering Superior

Replacement of NPN and PNP Discrete Solutions

• Strong Sink Current Offers Enhanced Immunity

Against Miller Turnon

• Split Output Configuration (Allows Easy and

Independent Adjustment of Turnon and Turnoff

Speeds)

• Fast Propagation Delays (13ns typical)

• Fast Rise and Fall Times (8ns and 7ns typical)

• 4.5V to 18V Single Supply Range

• Outputs Held Low During VDD UVLO (Ensures

Glitch-Free Operation at Power Up and Power

Down)

• TTL and CMOS Compatible Input-Logic Threshold

(Independent of Supply Voltage)

• Wide Hysteresis (1V typical) for High-Noise

Immunity

• Dual-Input Design (Choice of an Inverting (IN– Pin)

or Non-Inverting (IN+ Pin) Driver Configuration)

– Unused Input Pin can be Used for Enable or

Disable Function

• Output Held Low when Input Pins are Floating

• Input Pin Absolute Maximum Voltage Levels Not

Restricted by VDD Pin Bias Supply Voltage

2 Applications

• Switch-Mode Power Supplies

• DC-to-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 UCC27511A device is a compact gate driver that

offers superior replacement of NPN and PNP discrete

driver (buffer circuit) solutions. The UCC27511A

device is a single-channel low-side, high-speed gate

driver rated for MOSFETs, IGBTs, and emerging widebandgap

power devices such as GaN. The device

features fast rise times, fall times, and propagation

delays, making the UCC27511A device suitable for

high-speed applications. Its asymmetrical 4A peak

source and 8A peak sink currents boost immunity

against parasitic Miller turnon effect. The split

output configuration enables easy and independent

adjustment of rise and fall times using only two

resistors and eliminating the need for an external

diode. Features including wide input hysteresis and

negative input voltage handling enhance transient

immunity.