Datasheet > SGM4558

SGM4558

更新时间： 2024-10-03 11:08:19

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
7页	360K
描述
Dual SIM/Smart Card Power Supply and Interface

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SGM4558 数据手册

SGM4558

Dual SIM/Smart Card

Power Supply and Interface

GENERAL DESCRIPTION

FEATURES

The SGM4558 is used for power conversion and level

translation of the signal in the application of SIMs for

mobile phones. Also, it can be used for the applications

of 1.8V or 3.3V SIMs, which is powered by its internal

LDOs from 2.7V to 5.5V input signal. The value of the

output voltage can be controlled with the voltage

selection pins of the SGM4558 with the maximum load

current of 250mA. The function of the channel selection

pins is that it can be used to determine the open

condition of the specific channel. The two SIM cards

can be powered by the SGM4558 at once with the

control of the enable pins for each channel, and the fast

translation can be made from channel A to channel B.

● Controlling of Two SIM or Smart Cards with the

Internal Power Management

● Both Connected Cards are Powered by the

1.8V/3.3V Power Supply

● Two LDOs Support up to 250mA Loading

● Powering Two SIM or Smart Cards at the Same

Time

● Quick Switching from One Channel to Another

● Automatic Level Translation

● Fast Rising Time for the Signals

● Protecting Mechanism for Any Fault Conditions

● Mechanism which can Activate/Deactivate the

Sequence

● Extreme Low Supply Voltage and Shutdown

Current

The level translator integrated on the SGM4558 can

boost the input signal which is powered by 1.4V to 1.8V

or 3V interface. If the supply voltage is below 3.3V, the

lifespan of the battery can be enhanced as the 90μA

operating current and 2μA shutdown current.

● -40℃ to +85℃ Operating Temperature Range

● Available in a Green TQFN-3×3-20L Package

APPLICATIONS

The SGM4558 is available in a Green TQFN-3×3-20L

package. It operates over an ambient temperature

range of -40℃ to +85℃.

Multiple SIM Card Interfaces

TD-SCDMA, GSM and Other 3G⁺Mobile Phones

Wireless Point-of-Sale Terminals

TYPICAL APPLICATION

1.4V to 5.5V

2.7V to 5.5V

1µF

DV_CC

V_BAT

I/OA

I/O

CLKIN

RSTA

CLKA

RSTIN

RST

CLK

1.8V/3V

SIM Card A

Controller

SGM4558

DATA

CLKRUNA

CLKRUNB

V_CCA

V_CC

GND

1µF

ENABLEA

ENABLEB

CSEL

V_CC

V_CCB

CLK

RST

I/O

1.8V/3V

SIM Card B

CLKB

RSTB

VSELA

VSELB

I/OB

GND

Figure 1. Typical Application Circuit

SG Micro Corp

JUNE2013–REV. A

www.sg-micro.com

12 3 4 5 6 7

中文翻译

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与SGM4558相关器件

型号	品牌	获取价格	描述	数据表
SGM4560	SGMICRO	获取价格	CA Card Power Supply and Level Translator
SGM4563	SGMICRO	获取价格	4-Bit Level Translator for SPI Bus or UART Interface
SGM4564	SGMICRO	获取价格	4-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing
SGM4565	SGMICRO	获取价格	SIM Card Interface Level Translator with EMI Filter and ESD Protection
SGM4566	SGMICRO	获取价格	6-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing
SGM4568	SGMICRO	获取价格	8-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing
SGM457	SGMICRO	获取价格	Low Power, Low Supply Voltage, SOT Package, Digital Temperature Sensor
SGM4570Q	SGMICRO	获取价格	Dual-Supply Translating Transceiver with Auto Direction Sensing and Open-Drain
SGM4573	SGMICRO	获取价格	Open-Drain, Dual-Supply Translating Transceiver with Auto Direction Sensing
SGM4574	SGMICRO	获取价格	4-Bit Bidirectional Voltage-Level Translator for Open-Drain and Push-Pull Applications

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