MIC2039屬于開(kāi)發(fā)板套件編程器的評(píng)估演示板及套件。由微芯科技股份有限公司制造生產(chǎn)的MIC2039評(píng)估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過(guò)驗(yàn)證的實(shí)施環(huán)境中評(píng)估某些重點(diǎn)器件的性能或特性。評(píng)估方法通常有完善的文檔說(shuō)明，并且視乎具體情況由評(píng)估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對(duì)于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開(kāi)關(guān)模式電源)，評(píng)估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。

General Description

The MIC2039 is a high-side MOSFET power

distribution switch that provides increased system

reliability by using 5 current-limit accuracy.

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 32 ms

delay that asserts low during overcurrent or

thermal-shutdown conditions.

The MIC2039 features an adjustable output current

limit that is resistor-programmable from 0.2A to 2.5A.

The MIC2039 also offers a unique kickstart feature that

allows momentary high-current surges up to the

secondary current limit (ILIMIT_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.

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

2 mm x 2 mm UDFN packages. The MIC2039 has an

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

特性 Features

? ±5 Current-Limit Accuracy

? Input Supply Range from 2.5V to 5.5V

? Low Quiescent Current: 100 μA Typical (Switch

ON)

? 75 mΩ Typical RDS(ON) at 5V

? 0.2A to 2.5A Adjustable Output Current

? Kickstart: Momentary Secondary Current-Limit

Threshold (120 ms period)

? Soft-Start Functionality

? Undervoltage Lockout (UVLO)

? Fast 10 μs Short-Circuit Response Time

(Non-Kickstart Options)

? Fault Status Output Flag

? Logic Controlled Enable (Active-High, Active-Low)

? Thermal Shutdown

? Pin Compatible with MIC2009/MIC2019

? 6-Pin 2 mm x 2 mm UDFN and 6-Pin SOT-23 Packages

? Junction Temperature Range from –40°C to+125°C

Applications

? USB Peripherals and USB 2.0/3.0-Compatible

? DTV/STB

? Notebooks and Consumer Electronics

? General Purpose Power Distribution