1 Features

? Qualified for Automotive Applications

? AEC-Q100 Qualified

– Device Temperature Grade 1

– Device HBM ESD Classification Level H1C

– Device CDM ESD Classification Level C6

? Typical 5-A peak source and sink drive current for

each channel

? Input and enable pins capable of handling –10 V

? Output capable of handling –2-V transients

? Absolute maximum VDD voltage: 30 V

? Wide VDD operating range from 4.5 V to 26 V with

UVLO

? Hysteretic-logic thresholds for high noise immunity

? VDD independent input thresholds (TTL

compatible)

? Fast propagation delays (17-ns typical)

? Fast rise and fall times (6-ns and 10-ns typical)

? 1-ns typical delay matching between the two

channels

? Two channels can be paralleled for higher drive

current

? SOIC8 and VSSOP8 PowerPAD? package

options

? Operating junction temperature range of –40°C to

150°C

2 Applications

? Automotive DC/DC Converters

? Switched-mode power supplies (SMPS)

? Power factor correction (PFC) circuits

? DC/DC converter

? Motor drives

? Solar power supplies

? Pulse transformer driver

3 Description

The UCC27624-Q1 is a dual-channel, high-speed,

low-side gate driver that effectively drives MOSFET,

IGBT, SiC, and GaN power switches. UCC27624-Q1

has a typical peak drive strength of 5 A, which

reduces rise and fall times of the power switches,

lowers switching losses, and increases efficiency.

The device's fast propagation delay (17-ns typical)

yields better power stage efficiency by improving the

deadtime optimization, pulse width utilization, control

loop response, and transient performance of the

system.

UCC27624-Q1 can handle –10 V at its inputs,

which improves robustness in systems with moderate

ground bouncing. The inputs are independent of

supply voltage and can be connected to most

controller outputs for maximum control flexibility. An

independent enable signal allows the power stage to

be controlled independently of main control logic. In

the event of a system fault, the gate driver can quickly

shut-off by pulling enable low. Many high-frequency

switching power supplies exhibit noise at the gate

of the power device, which can get injected into the

output pin on the gate driver and can cause the driver

to malfunction. The device's transient reverse current

and reverse voltage capability allow it to tolerate noise

on the gate of the power device or pulse-transformer

and avoid driver malfunction.

The UCC27624-Q1 also features undervoltage

lockout (UVLO) for improved system robustness.

When there is not enough bias voltage to fully

enhance the power device, the gate driver output is

held low by the strong internal pull down MOSFET.

UCC27624屬于開發(fā)板，套件，編程器 > 評(píng)估和演示板及套件。美國(guó)德州儀器公司制造生產(chǎn)的UCC27624評(píng)估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過(guò)驗(yàn)證的實(shí)施環(huán)境中評(píng)估某些重點(diǎn)器件的性能或特性。評(píng)估方法通常有完善的文檔說(shuō)明，并且視乎具體情況由評(píng)估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對(duì)于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評(píng)估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。