G574

更新时间： 2024-01-23 05:27:50

品牌	Logo	应用领域
致新 - GMT		控制器 PC
页数	文件大小	规格书
14页	327K
描述
Dual-Slot PCMCIA/CardBus Power Controller

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技术参数
数据手册

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G574 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	5.65
Base Number Matches：	1

G574 数据手册

Global Mixed-mode Technology Inc.

G574

Dual-Slot PCMCIA/CardBus Power Controller

Features

Description

^ꢀBackward Compatible with G570

^ꢀFully Integrated V_CCand V_ppSwitching for Dual

Slot PC Card^TMInterface

The G574 PC Card power-interface switch provides an

integrated power-management solution for two PC Cards.

All of the discrete power MOSFETs, a logic section, cur-

rent limiting, and thermal protection for PC Card control

are combined on a single integrated circuit (IC). The cir-

cuit allows the distribution of 3.3V, 5V, and/or 12V card

power by means of the Serial interface. The current-

limiting feature eliminates the need for fuses, which re-

duces component count and improves reliability.

^ꢀ3-Lead Serial Interface Compatible With

CardBus^TMControllers

^ꢀ3.3V Low Voltage Mode

^ꢀMeets PC Card Standards

^ꢀRESET for System Initialization of PC Cards

^ꢀ12V Supply Can Be Disabled Except During

12V Flash Programming

The G574 features a 3.3V low voltage mode that allows

for 3.3V switching without the need for 5V supply. This

facilitates low power system designs such as sleep

mode and pager mode where only 3.3V is available.

The G574 incorporates a reset function, selectable by

one of two inputs, to help alleviate system errors. The

reset function enables PC card initialization concurrent

with host platform initialization, allowing a system reset.

Reset is accomplished by grounding the V_CCand V_PP

(flash-memory programming voltage) outputs, which

discharges residual card voltage.

^ꢀShort Circuit and Thermal Protection

^ꢀ30 Pin SSOP

^ꢀCompatible With 3.3V, 5V and 12V PC Cards

^ꢀLow R_DS(on)(180-mΩ 5V V_CCSwitch;

130 mΩ 3.3V V_CCSwitch)

^ꢀBreak-Before-Make Switching

^ꢀInternal power-On Reset

^ꢀStandby mode: 60mA current limit (TYP)

Application

^ꢀNotebook PC

^ꢀElectronic Dictionary

^ꢀPOS

This device also has the ability to program the xVpp

outputs independent of the xVCC outputs. A standby

mode that changes all output-current limits to 50mA

(typical) has been incorporated.

End equipment for the G574 includes notebook com-

puters, desktop computers, personal digital assistants

(PDAs), digital cameras and bar-code scanners.

The G574 is backward-compatible with the G570.

Ordering Information

PART NUMBER TEMP. RANGE

PACKAGE

30 SSOP

G574SA

-40°C to +85°C

Pin Configuration

G574

MODE

DATA

CLOCK

LATCH

RESET

12V

AVPP

AVCC

GND

RESET

3.3V

12V

BVPP

BVCC

STBY

3.3V

30Pin SSOP

Ver: 1.0

TEL: 886-3-5788833

Jan 23, 2003

http://www.gmt.com.tw

12 3 4 5 6 7...14

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