ZLMP8012
Document number: DS35980 Rev. 2 - 2 1 of 3
www.diodes.com October 2012
© Diodes Incorporated
ZLPM8012
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Diodes Incorporated
SET-TOP BOX SERIES SINGLE LNB
CONTROLLER AN D POWER SUPPLY IC
Summary
The ZLPM8012 is a power management and control solution for
satellite set-top boxes (STBs). Based on an efficient boost converter
the ZLPM8012 provides the power supply and all the control signals
required by a single port satellite Low Noise Block (LNB). The
ZLPM8012 includes an accurate 22kHz tone generator to provide
DiSEqC™ control words or continuous tone for band switching
control. Controlled by I2C™ and with the minimal external
components the ZLPM8012 provides a high performing cost efficient
solution.
Features
• Efficient boost converter providing an accurate adjustable
power supplies LNBs
• Operates from a single rail supply
• Provides a protected output of up to 550mA
• Adjustable 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.
• Internal 22kHz generator for DiSEqC control and traditional
band switching
• 22kHz maintains shape across all load conditions
• Controlled by I2C
• 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 Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those 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.
ZLMP8012
Document number: DS35980 Rev. 2 - 2 3 of 3
www.diodes.com October 2012
© Diodes Incorporated
ZLPM8012
A
Product Line o
f
Diodes Incorporated
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the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided
in the labeling can be reasonably expect ed t o result in significant i njury to the user.
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