ZLPM8011
Document number: DS35979 Rev. 2 - 2 1 of 3
www.diodes.com October 2012
© Diodes Incorporated
ZLPM8011
A
Product Line o
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Diodes Incorporated
SET-TOP BOX SERIES SINGLE LNB
CONTROLLER AND POWER SUPPLY IC
Summary
The ZLPM8011 is a power management and control solution for
satellite set-top boxes (STBs). Based on an efficient boost converter
the ZLPM8011 provides the power supply and all the control signals
required by a single port satellite Low Noise Block (LNB). The
ZLPM8011 includes an accurate 22kHz tone generator to provide
DiSEqC™ control words or continuous tone for band switching
control. To provide a reliable DiSEqC 2.0 solution the IC includes a
DiSEqC detector with unwanted signal rejection. Controlled by an
I2C™ compatible interface or logic inputs and with the minimal
external components the ZLPM8011 provides a high performing,
efficient cost efficient solution.
Features
• High system efficiency with standby mode
• Efficient boost converter and LDO providing an accurate
adjustable power supply for LNBs
• Provides a protected output of up to 550mA
Programmable current limit for system flexibility
• Designed for stability with low power LNBs
• Provides standard voltage / tone and DiSEqC control signals and
allows for regional variations such as Japan.
Internal tone generator for DiSEqC control and traditional
band switching
Tone maintains shape across all load conditions
• Internal reliable tone detector for DiSEqC 2.0 systems
• Controlled by I2C interface or independent logic control
• Built in multiple diagnostics and protection for IC and LNB
protection
• Minimal external components for a simple, reliable and cost
effective solution
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Applications
• Single tuner Satellite Set-top boxes
High current LNBs
Stability with minimal current LNBs
• Satellite PC Cards
• TV’s with integrated satellite tuners
• Hybrid Set-top boxes
• Suitable for Digital and Analog satellite systems
System Diagram
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes In corpor ated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as tho se which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
DiSEqC is a trademark of Eutlesat.
I2C is a trademark of Philips Corp.
ZLPM8011
Document number: DS35979 Rev. 2 - 2 3 of 3
www.diodes.com October 2012
© Diodes Incorporated
ZLPM8011
A
Product Line o
f
Diodes Incorporated
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