1 Features

1? Qualified for Automotive Applications

? AEC-Q100 Qualified With the Following Results:

– Device Automotive Qualified Grade 1: –40°C

to 125°C Ambient Operating Temperature

Range

– Device HBM ESD Classification Level 2

– Device CDM ESD Classification Level C6

? Low-Cost Gate-Driver Device Offering Superior

Replacement of NPN and PNP Discrete Solutions

? 4-A Peak-Source and Sink Symmetrical Drive

? Ability to Handle Negative Voltages (–5 V) at

Inputs

? Fast Propagation Delays (13-ns typical)

? Fast Rise and Fall Times (9-ns and 7-ns typical)

? 4.5 to 18-V 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)

? Hysteretic-Logic Thresholds 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

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

? 5-Pin DBV (SOT-23) Package Option

2 Applications

? Automotive

? 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 UCC27517A-Q1 single-channel high-speed low-

side gate-driver device effectively drives MOSFET and IGBT power switches. With a design that

inherently minimizes shoot-through current, the

UCC27517A-Q1 sources and sinks high peak-current

pulses into capacitive loads offering rail-to-rail drive

capability and extremely small propagation delay

typically 13 ns.

The UCC27517A-Q1 device handles –5 V at input.

The UCC27517A-Q1 provides 4-A source and 4-A

sink (symmetrical drive) peak-drive current capability

at VDD = 12 V.

The UCC27517A-Q1 operates over a wide VDD range

of 4.5 V to 18 V and wide temperature range of –40°C to 140°C. Internal Undervoltage Lockout

(UVLO) circuitry on VDD pin holds the output low

outside VDD operating range. The ability 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.