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MIC2019YML

更新时间： 2024-11-02 11:57:35

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
30页	1314K
描述
Fixed and Adjustable Current Limiting Power Distribution Switches

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中文翻译

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MIC2019YML 数据手册

MIC20XX Family

Fixed and Adjustable Current Limiting

Power Distribution Switches

General Description

Features

MIC20XX family of switches are current limiting, high-side

power switches, designed for general purpose power

distribution and control in digital televisions (DTV), printers,

set top boxes (STB), PCs, PDAs, and other peripheral

devices (see Functionality Table and Pin Configuration

drawings)

• MIC20X3 – MIC20X9

70mΩ typical on-resistance @ 5V

• MIC2005A/20X9A

170mΩ typical on-resistance @ 5V

• Enable active high or active low

• 2.5V – 5.5V operating range

MIC20XX family’s primary functions are current limiting

and power switching. They are thermally protected and will

shutdown should their internal temperature reach unsafe

levels, protecting both the device and the load, under high-

current or fault conditions

• Pre-set current limit values of 0.5A, 0.8A, and 1.2A*

• Adjustable current limit 0.2A to 2.0A* (MIC20X7-

MIC20X9)

• Adjustable current limit 0.1A to 0.9A* (MIC20X9A)

• Undervoltage lock-out (UVLO)

Features include fault reporting, fault blanking to eliminate

noise-induced false alarms, output slew rate limiting, under

voltage detection, automatic-on output, and enable pin

with choice of either active low or active high enable. The

FET is self-contained, with a fixed- or user-adjustable

current limit. The MIC20XX family is ideal for any system

where current limiting and power control are desired.

• Variable UVLO allows adjustable UVLO thresholds*

• Automatic load discharge for capacitive loads*

• Soft-start prevents large current inrush

• Adjustable slew rate allows custom slew rates*

• Automatic-on output after fault

The MIC201X (3 ≤ x ≤ 9) and MIC2019A switches offer a

unique new patented feature: Kickstart™, which allows

momentary high-current surges up to the secondary

current limit (I_LIMIT_2nd) without sacrificing overall system

safety.

• Thermal protection

* Available on some family members

Applications

The MIC20xx family is offered, depending on the desired

features, in a space-saving 5-pin SOT-23, 6-pin SOT-23,

and 2mm x 2mm MLF^®packages.

• Digital televisions (DTV)

• Set top boxes

• PDAs

• Printers

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• USB / IEEE 1394 power distribution

• Desktop and laptop PCs

• Game consoles

• Docking stations

___________________________________________________________________________________________________________

Typical Application

5V Supply

MIC2005A

Logic

V_BUS

120µF

Controller

VIN

GND

VOUT

USB

Port

VIN

FAULT/

ON/OFF

1µF

OVERCURRENT/

Figure 1. Typical Application Circuit

Kickstart is a trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Protected by U.S. Patent No. 7,170,732

CableCARD is a trademark of CableLabs.

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

M9999-080211-D

August 2011

12 3 4 5 6 7...30

中文翻译

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与MIC2019YML相关器件

型号	品牌	获取价格	描述	数据表
MIC2019YMLTR	MICREL	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, 2 X 2 MM, LEAD FREE, MLF-6
MIC2025	MICREL	获取价格	Single-Channel Power Distribution Switch Preliminary Information
MIC2025	MICROCHIP	获取价格	The MIC2025 and MIC2075 are high-side MOSFET switches optimized for general-purpose power
MIC2025_10	MICREL	获取价格	Single-Channel Power Distribution Switch MM8?
MIC2025-1BM	MICREL	获取价格	Single-Channel Power Distribution Switch Preliminary Information
MIC2025-1BMM	MICREL	获取价格	Single-Channel Power Distribution Switch Preliminary Information
MIC2025-1BMMTR	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MSOP-8
MIC2025-1BMTR	MICREL	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, SOIC-8
MIC2025-1YM	MICREL	获取价格	Single-Channel Power Distribution Switch MM8?
MIC2025-1YMM	MICREL	获取价格

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