ZLPM8012 Datasheet, PDF (1/3 Pages) Diodes Incorporated – SET-TOP BOX SERIES SINGLE LNB CONTROLLER AND POWER SUPPLY IC

A Product Line of
Diodes Incorporated
ZLPM8012
SET-TOP BOX SERIES SINGLE LNB CONTROLLER AND 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 450mA
• 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
ƒ High current LNBs
ƒ 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. 1 - 2
1 of 3
www.diodes.com
June 2012
© Diodes Incorporated