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MIC2009YM6 TR

产品描述usb switch ics programmable current limit single high-side switch w/flag - lead free
产品类别半导体    其他集成电路(IC)   
文件大小1MB,共31页
制造商Microchip(微芯科技)
官网地址https://www.microchip.com
标准  
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MIC2009YM6 TR概述

usb switch ics programmable current limit single high-side switch w/flag - lead free

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MIC20XX Family
Fixed and Adjustable Current Limiting
Power Distribution Switches
General Description
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)
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
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.
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.
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.
Datasheets and support documentation can be found on
Micrel’s web site at:
www.micrel.com.
Features
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
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)
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
Thermal protection
* Available on some family members
Applications
Digital televisions (DTV)
Set top boxes
PDAs
Printers
USB / IEEE 1394 power distribution
Desktop and laptop PCs
Game consoles
Docking stations
___________________________________________________________________________________________________________
Typical Application
5V Supply
Logic
Controller
VIN
ON/OFF
OVERCURRENT/
1µF
MIC2005A
VIN
GND
EN
FAULT/
VOUT
V
BUS
120µF
USB
Port
Figure 1. Typical Application Circuit
Kickstart is a trademark of Micrel, Inc.
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technology, Inc.
CableCARD is a trademark of CableLabs.
Protected by U.S. Patent No. 7,170,732
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 •
http://www.micrel.com
August 2011
M9999-080211-D

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