Datasheet > MIC2547-2BM

MIC2547-2BM

更新时间： 2024-11-08 22:54:51

品牌	Logo	应用领域
麦瑞 - MICREL		开关
页数	文件大小	规格书
12页	264K
描述
Dual Programmable Current Limit Switch Preliminary Information

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中文翻译

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MIC2547-2BM 数据手册

MIC2546/2547

Micrel

MIC2546/2547

Dual Programmable Current Limit Switch

Preliminary Information

General Description

Features

The MIC2546 and MIC2547 are integrated high-side dual

powerswitchesoptimizedforlowlossdcpowerswitchingand

other power management applications, including Advanced

Configuration and Power Interface (ACPI). The MIC2546/47

isacost-effective, highlyintegratedsolutionthatrequiresfew

external components to satisfy USB and ACPI requirements.

• 2.7V to 5.5V input

• Adjustable current-limit up to 1.5A

• Reverse current flow blocking (no “body diode”)

• 100µA typical on-state supply current per channel

• 2µA typical off-state supply current

• 120mΩ maximum on-resistance

• Open-drain fault flag

Loadcurrentmanagementfeaturesincludeaprecisionresis-

tor-programmable output current-limit and a soft-start circuit

which minimizes inrush current when the switch is enabled.

Thermal shutdown, along with current-limit, protects the

switch and the attached device.

• Thermal shutdown

• Thermal shutdown output latch (MIC2547)

• 2ms (slow) turn-on and fast turnoff

• Available with active-high or active-low enable

Applications

• USB power distribution

• PCI Bus Power Switching

• Notebook PC

• ACPI power distribution

• PC card hot swap applications

• Inrush current-limiting

The MIC2546/47’s open-drain flag outputs are used to indi-

catecurrent-limitingorthermalshutdowntoalocalcontroller.

The MIC2547 has an additional internal latch which turns the

output off upon thermal shutdown providing robust fault

control. The enable signal is compatible with both 3V and 5V

logic, andisalsousedasthethermalshutdownlatchresetfor

the MIC2547.

The MIC2546 and MIC2547 are available in active-high and

active-low enable versions in 16-pin TSSOP and SOP

packages.

• Ideal for dual supply applications

Typical Application

+5V

0.1µF

R_FLGA

MIC2546-xBM

On/Off

Peripheral

ENA

OUTA

INA

FLGA

GNDA

ILIMA

ENB

33µF

OUTA

R_SETA

OUTB

INB

Peripheral

FLGB

R_FLGB

GNDB OUTB

ILIMB NC

R_SETB

33µF

+3.3V

0.1µF

Typical Advanced Configuration and Power Interface (ACPI) Application

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

June 2000

MIC2546/2547

12 3 4 5 6 7...12

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与MIC2547-2BM相关器件

型号	品牌	获取价格	描述	数据表
MIC2547-2BTS	MICREL	获取价格	Dual Programmable Current Limit Switch Preliminary Information
MIC2547-2BTSTR	ROCHESTER	获取价格	IC,PERIPHERAL DRIVER,2 DRIVER,TSSOP,16PIN,PLASTIC
MIC2547-2YM	MICREL	获取价格	Dual Programable Current Limit Switch
MIC2547-2YTS	MICREL	获取价格	Dual Programable Current Limit Switch
MIC2547-2YTSTR	MICROCHIP	获取价格	IC,PERIPHERAL DRIVER,2 DRIVER,TSSOP,16PIN,PLASTIC
MIC2547-2YTS-TR	MICROCHIP	获取价格	IC,PERIPHERAL DRIVER,2 DRIVER,TSSOP,16PIN,PLASTIC
MIC2548	MICREL	获取价格	Programmable Current Limit High-Side Switch
MIC2548	MICROCHIP	获取价格	The MIC2544 and MIC2548 are integrated, high-side power switches optimized for low loss DC
MIC2548-1BM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2548-1BMM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information

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