MT6305B Просмотр технического описания (PDF) - MediaTek Inc

Номер в каталоге

Компоненты Описание

производитель

MT6305B

GSM Power Management System

MediaTek Inc 

Confidential Information

MT6305B

GSM Power Management System

Features

n Handles all GSM Baseband Power Manage-

ment

n 2.8V to 5.5V Input Range

n Charger Input up to 15V, automatically termi-

nate charging above 9V

n Seven LDOs Optimized for Specific GSM Sub-

systems

n High Operation Efficiency and Low Stand-by

Current

n Li-Ion and NiMH Battery Charge function

n SIM Card Interface

n Three Open-Drain Output Switches to Control

the LED, Alerter and Vibra tor

n Thermal Overload Protection

n Under Voltage Lock-out Protection

n Over Voltage Protection

n Power-on Reset and Start-up Timer

n 48-Pin QFN Package

Applications

n GSM/GPRS Mobile Handsets

n Basic Phone and High-end Phone

General Description

The MT6305 is a power management system chip

opt imized for GSM handsets, especially those based

on the MediaTek MT62xx system solution. It contains

seven LDOs, one to power each of the critical GSM

sub-blocks. Sophisticated controls are available for

power-up during battery charging, keypad interface,

and RTC alarm. The MT6305 is optimized for max i-

mum battery life, featuring a ground current of only

108µA and 187µA when the phone is in standby and

operation respectively.

The MT6305 battery charger can be used with lithium

ion (Li+) and nickel metal hydride (NiMH) batteries.

The MT6305 contains three open-drain output

switches for LED, alerter and vibrator control. The

SIM interface provides the level shift between SIM

card and microprocessor.

The MT6305 is available in 48-pin QFN package. The

operating temperature range is from -25°C to +85°C.

Ordering Information

ORDER

NUMBER

MARKING

MT6305Q1X MT6305BN/CY

TEMP.

RANGE

PACKAGE

-25°C to +85°C QFN - 48L

Pin Configuration

CHRIN 1

GATEDRV 2

VD_VRTC_SEL 3

ISENSE 4

CHRCNTL 5

CHRDET 6

BATSNS 7

VSIM

8

SIMIO 9

SIMRST 10

SIMCLK 11

SIMVCC 12

MT6305BN/CY

36 LEDEN

35 ALERTEREN

34 VIBRATOREN

33 PWRBB

32 PWRKEY

31 SRCLKEN

30

NC

29 VREF

28 AGND

27

VA

26 AVBAT

25 VTCXO

MediaTek Confidential

Revision 1.1–Apr. 22, 2005

© 2002 MediaTek Inc.

The information contained in this document can be modified without notice

Page 8 of 33

Share Link: