MIC2095(2010) Ver la hoja de datos (PDF) - Micrel

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Fabricante

MIC2095
(Rev.:2010)

Current-Limiting Power Distribution Switches

Micrel 

MIC2095/MIC2097/MIC2098/MIC2099

Current-Limiting Power Distribution Switches

General Description

Features

The MIC2095/97/98/99 family of switches are self-

contained, current-limiting, high-side power switches, ideal

for power-control applications. These switches are useful

for general purpose power distribution applications such as

digital televisions (DTV), printers, set-top boxes (STB),

PCs, PDAs, and other peripheral devices.

The current limiting switches feature either a fixed

0.5A/0.9A or resistor programmable output current limit.

The family also has fault blanking to eliminate false noise-

induced, over current conditions. After an over-current

condition, these devices automatically restart if the enable

pin remains active. The MIC2097 switch offers a unique

new patented Kickstart feature, which allows momentary

high-current surges up to the secondary current limit

(ILIMIT_2nd). This is useful for charging loads with high inrush

currents, such as capacitors.

The MIC2095/97/98/99 family of switches provides under-

voltage, over-temperature shutdown, and output fault

status reporting. The family also provides either an active

low or active high, logic level enable pin.

The MIC2095/97/98/99 family is offered in a space saving

1.6mm x 1.6mm Thin MLF® (TMLF) package.

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• MIC2095: 0.5A fixed current limit

• MIC2098: 0.9A fixed current limit

• MIC2097/99: Resistor programmable current limit

– 0.1A to 1.1A

• MIC2097: Kickstart for high peak current loads

• Under voltage lock-out (UVLO)

• Soft start prevents large current inrush

• Automatic-on output after fault

• Thermal protection

• Enable active high or active low

• 170mΩ typical on-resistance @ 5V

• 2.5V – 5.5V operating range

Applications

• Digital televisions (DTV)

• Set top boxes

• PDAs

• Printers

• USB / IEEE 1394 power distribution

• Desktop and laptop PCs

• Game consoles

• USB keyboard

• Docking stations

_________________________________________________________________________________________________________________________

Typical Application

MIC2095 USB Power Switch

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

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

September 2010

M9999-092010-C

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