Datasheet > MIC20XX

MIC20XX

更新时间： 2024-11-05 10:57:23

品牌	Logo	应用领域
麦瑞 - MICREL		开关
页数	文件大小	规格书
29页	1277K
描述
Fixed and Adjustable Current Limiting Power Distribution Switches

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MIC20XX 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 on page 6 and Pin

Configuration Drawings on page 8.

• 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)

• Under voltage 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 (ILIMIT_2nd) without sacrificing overall system

safety.

• Thermal Protection

* Available on some family members

Applications

• Digital televisions (DTV)

• Set top boxes

• PDAs

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.

• 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

M9999-020311-D

February 2011

12 3 4 5 6 7...29

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与MIC20XX相关器件

型号	品牌	获取价格	描述	数据表
MIC20XX_1108	MICREL	获取价格	Fixed and Adjustable Current Limiting Power Distribution Switches
MIC2101	MICREL	获取价格	38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control
MIC2101	MICROCHIP	获取价格	The MIC2101/02 are constant-frequency, synchronous buck controllers featuring a unique ada
MIC2101_13	MICREL	获取价格	38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control
MIC2101YML	MICREL	获取价格	38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control
MIC2102	MICREL	获取价格	38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control
MIC2102	MICROCHIP	获取价格	The MIC2101/02 are constant-frequency, synchronous buck controllers featuring a unique ada
MIC2102YML	MICREL	获取价格	38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control
MIC2103	MICREL	获取价格	75V, Synchronous Buck Controllers featuring Adaptive On-Time Control
MIC2103	MICROCHIP	获取价格	The MIC2103/04 are constant-frequency, synchronous buck controllers featuring a unique ada

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