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MIC2042-2YM

更新时间： 2024-09-13 11:57:07

品牌	Logo	应用领域
麦瑞 - MICREL		开关光电二极管
页数	文件大小	规格书
15页	832K
描述
Single Channel, High Current, Low Voltage, Protected Power Distribution Switch

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中文翻译

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MIC2042-2YM 数据手册

MIC2042/2043

Micrel

MIC2042/2043

Single Channel, High Current, Low Voltage,

Protected Power Distribution Switch

General Description

Features

TheMIC2042andMIC2043arehigh-sideMOSFETswitches

optimizedforgeneralpurposepowerdistributionapplications

whichrequirecircuitprotection.Thedevicesswitchupto5.5V

and as low as 0.8V while offering both programmable current

limiting and thermal shutdown to protect the device and the

load. A fault status output is provided in order to detect

overcurrent and thermal shutdown fault conditions. Both

devices employ soft-start circuitry to minimize the inrush

current in applications that employ highly capacitive loads.

Additionally, for tighter control over inrush current during

start-up, the output slew-rate may be adjusted by an external

capacitor.

• 60mΩ max. on-resistance

• 0.8V to 5.5V operating range

• Adjustable current limit

• Power-Good detection

• Up to 3A continuous output current

• Short-circuit protection with thermal shutdown

• Adjustable slew-rate control

• Circuit breaker mode (MIC2043)

• Fault status flag

• Undervoltage lockout

• Output MOSFET reverse current flow block when

disabled

• Very fast reaction to short-circuits

• Low quiescent current

The MIC2043 features a auto-reset circuit breaker mode that

latchestheoutputoffupondetectinganovercurrentcondition

lasting more than 28ms. The output is reset by removing or

reducing the load.

Applications

All support documentation can be found on Micrel’s web

site at www.micrel.com.

• Docking stations

• Notebook PCs

• PDAs

• Hot swap board insertions

• RAID controllers

• USB hosts

• ACPI power distribution

Typical Application

+3.3V

0.1µF

MIC2042-1BTS

V_OUT

3.3V@ 1.5A

Power

Supply

10,11,14

VBIAS

VIN

VOUT

OUT1

OUT2

C_LOAD

33µF

0.1µF

294kΩ

8, 12

PGREF

4.7µF

20kΩ

24.3kΩ

Logic^ON/OFF

^INController

20kΩ

/FAULT

MIC39100-2.5BS

OVERCURRENT

2.5V

SLEW PWRGD

OUT

GND

ILIM

UVLOIN

GND

(OPEN)

C4*

0.022µF

R_SET

200Ω

Note:

All V_INpins (8, 12) must be externally tied together.

All V_OUTpins (10, 11, 14) must be externally tied together.

I_LIMIT≅ 2A.

Output Power-Good = 3.0V.

*C4 is optional. See "Applications Information."

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

M0512-112603

January 2005

12 3 4 5 6 7...15

中文翻译

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与MIC2042-2YM相关器件

型号	品牌	获取价格	描述	数据表
MIC2042-2YMTR	MICREL	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, LEAD FREE, SOP-8
MIC2042-2YTS	MICREL	获取价格	Single Channel, High Current, Low Voltage, Protected Power Distribution Switch
MIC2042-2YTSTR	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14, LEAD FREE, TSSOP-14
MIC2042-2YTS-TR	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14
MIC2043	MICREL	获取价格	Single Channel, High Current, Low Voltage, Protected Power Distribution Switch
MIC2043-1BM	MICREL	获取价格	Single Channel, High Current, Low Voltage, Protected Power Distribution Switch
MIC2043-1BMTR	MICREL	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, PDSO8, SOP-8
MIC2043-1BTS	MICREL	获取价格	Single Channel, High Current, Low Voltage, Protected Power Distribution Switch
MIC2043-1YM	MICREL	获取价格	Single Channel, High Current, Low Voltage, Protected Power Distribution Switch
MIC2043-1YMTR	MICREL	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, LEAD FREE, SOP-8

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