Datasheet > RT9619A

RT9619A

更新时间： 2024-01-09 15:40:42

品牌	Logo	应用领域
立锜 - RICHTEK		驱动器
页数	文件大小	规格书
11页	427K
描述
Synchronous-Rectified Buck MOSFET Drivers

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RT9619A 数据手册

RT9619/A

Synchronous-Rectified Buck MOSFET Drivers

General Description

Features

^zDrives Two N-Channel MOSFETs

^zAdaptive Shoot-Through Protection

^zEmbedded Boot Strapped Diode

^zSupports High Switching Frequency

^zFast Output Rise Time

The RT9619/A is a high frequency, dual MOSFET driver

specifically designed to drive two power N-Channel

MOSFETs in a synchronous-rectified buck converter

topology. This driver combined with Richtek's series of

Multi-Phase Buck PWM controller form a complete core-

voltage regulator solution for advanced micro-processors.

^zSmall SOP-8 Package

^zTri-State Input for Bridge Shutdown

^zSupply Under Voltage Protection

^zRoHS Compliant and 100% Lead (Pb)-Free

The RT9619/A drives both the lower/upper gate in a

synchronous-rectifier bridge with 12V. This drive-voltage

flexibility provides the advantage of optimizing applications

involving trade-offs between switching losses and

conduction losses.

Applications

z Core Voltage Supplies forDesktop, Motherboard CPU

z High Frequency Low ProfileDC-DC Converters

z High Current Low VoltageDC-DC Converters

RT9619Ahas longer UGATE/LGATE deadtime which can

drive the MOSFETs with large gate RC value, avoiding the

shoot-through phenomenon. RT9619 is targeted to drive

low gate RC MOSFETs and performs better efficiency.

Ordering Information

The output drivers in the RT9619/Acan efficiently switch

power MOSFETs at frequency up to 500kHz. Switching

frequency above 500kHz has to take into account the

thermal dissipation of SOP-8 package. RT9619/A is

capable to drive a 3nF load with a 30ns rise time.

RT9619/Aimplements bootstrapping on the upper gate with

an external capacitor and an embedded diode. This reduces

implementation complexity and allows the use of higher

performance, cost effectiveN-Channel MOSFETs.Adaptive

shoot-through protection is integrated to prevent both

MOSFETs from conducting simultaneously.

RT9619/A

Package Type

S : SOP-8

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

Long Dead Time

Short Dead Time

Note :

Richtek products are :

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

` Suitable for use in SnPb or Pb-free soldering processes.

Pin Configurations

(TOP VIEW)

BOOT

PWM

UGATE

PHASE

PGND

VCC

LGATE

SOP-8

DS9619/A-06 April 2011

www.richtek.com

12 3 4 5 6 7...11

中文翻译

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与RT9619A相关器件

型号	品牌	获取价格	描述	数据表
RT9619AGS	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9619APS	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9619GS	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9619PS	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9624A	RICHTEK	获取价格	Single Phase Synchronous Rectified Buck MOSFET Driver
RT9624B	RICHTEK	获取价格	Single Phase Synchronous Rectified Buck MOSFET Driver
RT9624B_15	RICHTEK	获取价格	Single Phase Synchronous Rectified Buck MOSFET Driver
RT9624BZQW	RICHTEK	获取价格	Single Phase Synchronous Rectified Buck MOSFET Driver
RT9624BZS	RICHTEK	获取价格	Single Phase Synchronous Rectified Buck MOSFET Driver
RT9624BZSP	RICHTEK	获取价格	Single Phase Synchronous Rectified Buck MOSFET Driver

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