Datasheet > MIC2039

MIC2039

更新时间： 2024-01-02 23:08:30

品牌	Logo	应用领域
麦瑞 - MICREL		开关电源开关
页数	文件大小	规格书
21页	694K
描述
High-Accuracy, High-Side, Adjustable Current Limit Power Switch

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MIC2039 数据手册

MIC2039

High-Accuracy, High-Side, Adjustable

Current Limit Power Switch

General Description

Features

The MIC2039 is a high-side MOSFET power distribution

switch providing increased system reliability by using 5%

current-limit accuracy.

•

±5% current limit accuracy

• Input supply range from 2.5V to 5.5V

• Low quiescent current: 100µA typical (switch ON)

• 75mΩ typical R_DS(ON)at 5.0V

• 0.2A to 2.5A adjustable output current

• Kickstart − momentary secondary current-limit threshold

The MIC2039 has an operating input voltage range from

2.5V to 5.5V, is internally current limited, and has thermal

shutdown to protect the device and system. The MIC2039

is offered with either active-high or active-low logic level

enable input controls. It has an open drain fault status

output flag with a built-in 32ms delay that asserts low

during overcurrent or thermal-shutdown conditions.

(120ms period)

• Soft-start functionality

• Undervoltage lockout (UVLO)

The MIC2039 switches feature an adjustable output

current limit that is resistor programmable from 0.2A to

2.5A. The MIC2039 switch also offers a unique, Kickstart

feature that allows momentary high-current surges up to

the secondary current limit (I_{LIMIT_2nd}) during startup or

while operating in steady state. This is useful for charging

loads with high inrush currents, such as capacitors. After

an overcurrent condition is established, these switches

enter into a constant current-limit mode unless the die

temperature exceeds the thermal-shutdown specification.

• Fast 10µs short-circuit response time (non-Kickstart

options)

• Fault status output flag

• Logic-controlled enable (active-high, active-low)

• Thermal shutdown

• Pin compatible with the MIC2009/MIC2019

• 6-pin 2mm × 2mm thin DFN and 6-pin SOT-23

packages

• Junction temperature range from −40°C to +125°C

The MIC2039 is available in 6-pin SOT-23 and 6-pin 2mm

× 2mm thin DFN packages. The MIC2039 has an

operating junction temperature range of −40°C to +125°C.

Data sheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

Applications

• USB peripherals and USB 2.0/3.0 compatible

• DTV/STB

• Notebooks and consumer electronics

• General-purpose power distribution

____________________________________________________________________________________________________________

Typical Application

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Revision 1.1

June 7, 2013

12 3 4 5 6 7...21

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与MIC2039相关器件

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MIC2039AYM6	MICREL	获取价格	High-Accuracy, High-Side, Adjustable Current Limit Power Switch
MIC2039AYM6-T5	MICROCHIP	获取价格	POWER SUPPLY SUPPORT CKT
MIC2039AYMT	MICREL	获取价格	High-Accuracy, High-Side, Adjustable Current Limit Power Switch
MIC2039BYM6	MICREL	获取价格	High-Accuracy, High-Side, Adjustable Current Limit Power Switch
MIC2039BYM6-T5	MICROCHIP	获取价格	POWER SUPPLY SUPPORT CKT
MIC2039BYM6-TR	MICROCHIP	获取价格	POWER SUPPLY SUPPORT CKT
MIC2039BYMT	MICREL	获取价格	High-Accuracy, High-Side, Adjustable Current Limit Power Switch
MIC2039EYM6	MICREL	获取价格	High-Accuracy, High-Side, Adjustable Current Limit Power Switch
MIC2039EYM6-T5	MICROCHIP	获取价格	POWER SUPPLY SUPPORT CKT
MIC2039EYM6-TR	MICROCHIP	获取价格	POWER SUPPLY SUPPORT CKT

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