Datasheet > RT9719

RT9719

更新时间： 2024-09-15 12:23:39

品牌	Logo	应用领域
立锜 - RICHTEK		装置
页数	文件大小	规格书
10页	186K
描述
Charging System Safety Device

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RT9719 数据手册

RT9719

Charging System Safety Device

General Description

Features

^zNo External Blocking Diode Requiring

^zOvervoltage Turn Off Time of Less Than 1μs

^zHigh Accuracy Protection Thresholds

^zOver Temperature Protection

The RT9719 is an integrated circuit (IC) designed to replace

passive device in charging system with extra protection

function. It is optimized to protect low voltage system

from up to 28V high voltage input. The IC monitors the

input voltage to make sure all parameters are operating in

normal range. It also monitors its own temperature and

turn off the MOSFET when the chip temperature exceeds

140°C. When the input voltage exceeds the threshold,

the IC turns off the power MOSFET within 1us to remove

the power before any damage occurs. User can monitor

the adapter input voltage from CHRINpin which has 50mA

current capability. The gate of the P-MOSFET will be

controlled by the external charging controller from

GATEDRV pin if all parameters are operating in normal

range.

^zHigh Immunity of False Triggering Under Transients

^zThermal Enhanced SOT-23-6 and 8-Lead WDFN

Packages

^zRoHS Compliant and Halogen Free

Application

z Cellular Phones

z Digital Cameras

z PDAs and Smart Phones

z Portable Instruments

The RT9719 is available in SOT-23-6 and WDFN-8L 2x2

tiny packages to achieve best solution for PCB space and

total BOM cost saving considerations.

Pin Configurations

(TOP VIEW)

ACIN

GND

ISENSE

CHRIN

Ordering Information

RT9719

GATEDRV

Package Type

E : SOT-23-6

WDFN-8L 2x2

QW : WDFN-8L 2x2 (W-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free)

OVP

Default : 6.25V

A : 7.20V

Note :

Richtek products are :

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

SOT-23-6

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

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

DS9719-01 April 2011

www.richtek.com

12 3 4 5 6 7...10

中文翻译

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