LNBH24L

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Dual LNBS supply and control IC with step-up and I2C interface

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  • Intended for analog and digital DUAL satellite receivers/Sat-TV, Sat-PC cards, the LNBH24L is a monolithic voltage regulator and interface IC, assembled in QFN 5x5 ePAD, specifically designed to provide the 13 / 18 V power supply and the 22 kHz tone signaling for two independent LNB down-converters in the antenna dishes and/or multi-switch box. In this application field, it offers a dual tuner STBs complete solution with extremely low component count, low power dissipation together with simple design and I²C standard interfacing.

    Key Features

    • +/- 4 kV ESD tolerant on output power pins
    • LNB short circuit dynamic protection
    • Overload and over-temperature internal protections with I²C diagnostic bits
    • Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS allow low power losses
    • Complete interface between LNBS and I²C bus
    • Selectable output current limit by external resistor
    • Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93%@0.5 A)
    • Auxiliary modulation input (EXTM) facilitates DiSEqC™ 1.X encoding
    • Output voltage and output current level diagnostic feedback by I²C bits
    • Compliant with main satellite receivers output voltage specification

Circuit Diagram

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Technical Documentation

    • Description Version Size Action
      DS6623
      Dual LNBS supply and control IC with step-up and I²C interface
      2.1
      532.19 KB
      PDF
      DS6623

      Dual LNBS supply and control IC with step-up and I²C interface

    • Description Version Size Action
      AN3352
      Dual LNB power supply based on the LNBH24L supply and control IC with step-up and I²C interface
      3.0
      1.26 MB
      PDF
      AN3352

      Dual LNB power supply based on the LNBH24L supply and control IC with step-up and I²C interface

Publications and Collaterals

    • Description Version Size Action
      Peripheral semiconductors for set-top box applications 4.3
      633.85 KB
      PDF

      Peripheral semiconductors for set-top box applications

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LNBH24LQTR
Active
VFQFPN 32 5x5x1.0 Industrial Ecopack2

LNBH24LQTR

Package:

VFQFPN 32 5x5x1.0

Material Declaration**:

XML

Marketing Status

Active

Package

VFQFPN 32 5x5x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.

Sample & Buy

Part Number
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Package
Packing Type
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
LNBH24LQTR No availability of distributors reported, please contact our sales office Buy now VFQFPN 32 5x5x1.0 Tape And Reel
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EAR99 MALAYSIA 1.586 / 1k

LNBH24LQTR

Package

VFQFPN 32 5x5x1.0

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.586 / 1k

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.586 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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