DiSEqC 1.X-compliant single LNB supply and control IC based on the LNBH25

The STEVAL-CBL009V1 demonstration board implements a DC-DC converter based on ST’s LNBH25 device. It is used to power LNBs in dish antennas to receive satellite TV signals.

It provides good performance at low cost using a low external component count, and includes all functions needed for supplying/interfacing LNB modules in accordance with international standards.

The device includes an I2C bus interface and, thanks to a fully integrated step-up DC-DC converter, it works with a single input voltage supply ranging from 8 V to 16 V.

Key Features

  • Complete interface between LNB and I2 C bus
  • Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93% @ 0.5 A)
  • Selectable output current limit by external resistor
  • 22 kHz tone waveform integrity guaranteed also in no load condition
  • Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS for low power loss
  • LPM (low power mode) function to reduce dissipation
  • Overload and overtemperature internal protection with I2 C diagnostic bits
  • LNB short-circuit dynamic protection
  • DiSEqC 1.x communication
  • RoHS compliant

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Design

Technical Documentation

Product Specifications
Description Version Size
DB1844 DB1844: DiSEqC 1.X-compliant single LNB supply and control IC based on the LNBH25 1.0 145 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-CBL009V1 gerber files 1.0 78 KB
Bill of Materials
Description Version Size
STEVAL-CBL009V1 BOM 1.0 50 KB
Schematic Packs
Description Version Size
STEVAL-CBL009V1 schematics 1.0 73 KB

Legal

License Agreement
Description Version Size
Evaluation products license agreement 1.0 125 KB
Support & Community

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-CBL009V1 LNBH25 Active 44.10 1 NEC EAR99 ITALY MORE INFO Buy Direct Add to cart DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-CBL009V1 ActiveCARDIndustrialEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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