MIC2569 Datasheet, PDF (1/16 Pages) Micrel Semiconductor – CableCARD™ Power Switch

MIC2569
CableCARD™ Power Switch
General Description
MIC2569 is designed to supply power to OpenCable™
systems and CableCARD™ hosts. These CableCARDs
are also known as Point of Distribution (POD) cards.
MIC2569 supports both Single and Multiple stream cards
through a simple to control parallel interface. All voltage
switching is soft-start at turn-on, and break-before-make
when changing between different voltage supplies.
Built in current limiting protects all V_CC and V_PP output lines
of the host system from card faults and accidental short
circuits. MIC2569 provides a FAULT/ signal to indicate an
over-current or fault condition exists and is equipped with
internal thermal monitoring circuitry to protect the device
itself in the event of a sustained over-current condition.
MIC2569 is offered in a space saving 16 pin QSOP
packaging.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• 110 mΩ maximum V_CC on resistance
• 400 mΩ maximum V_PP on resistance
• 3.0V to 3.6V for the 3.3V_IN operating range
• 3.0V to 5.5V for the 5V_IN operating range
• 1.3A minimum V_CC current limit
• 150mA minimum V_PP current limit (150mA each)
• Compact 16-pin QSOP packaging
• Operating temperatures from –40°C to +85°C
• Low quiescent current
• Soft start turn-on
• Break-before-make voltage switching
• Short-circuit protection with thermal shutdown
• Input under voltage lock-out (UVLO)
• ESD protection
• No external components required
Applications
• Satellite / Cable / DVR / Television set top boxes
• Video recorders
• Game consoles
___________________________________________________________________________________________________________
Typical Application
OpenCable Power Switch
CableCARD is a trademark of CableLabs, Inc.
OpenCable is a trademark of Cable Television Laboratories, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
September 2007
M9999-092507-C
[phone]