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

Download datasheet

Order a free sample and buy from our distributors

Sample & Buy
Overview
Tools & Software
Resources
Solutions
Quality & Reliability
Sales Briefcase
eDesignSuite
Get Started
Sample & Buy
Partner products
  • Intended for analog and digital dual satellite receivers/Sat-TV, and Sat-PC cards, the LNBH26S is a monolithic voltage regulator and interface IC, assembled in QFN24 4x4 specifically designed to provide the 13/18 V power supply and the 22 kHz tone signaling to the LNB down-converter in the antenna dishes or to the multi-switch box. In this application field, it offers a complete solution for dual tuner satellite receivers with extremely low component count, low power dissipation together with simple design and I²C standard interfacing.

    Key Features

    • Complete interface between LNB and I²C 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
    • Compliant with main satellite receiver output voltage specification (15 programmable levels)
    • Accurate built-in 22 kHz tone generator suits widely accepted standards
    • 22 kHz tone waveform integrity guaranteed at no-load condition as well
    • Low drop post regulator and high efficiency step-up PWM with integrated power NMOS allowing low power losses
    • LPM function (low power mode) to reduce dissipation
    • Overload and overtemperature internal protection with I²C diagnostic bits
    • LNB short-circuit dynamic protection
    • +/- 4 kV ESD tolerant on output power pins

Sample & Buy

Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
LNBH26SPQR QFN-24L Tape And Reel
Active
0.795 10000 EAR99 - Check Availability

Distributor availability ofLNBH26SPQR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3997 1 Order Now

Distributor reported inventory date: 2019-10-03

Distributor Name

DIGIKEY

Stock

3997

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-10-03

Get sample

LNBH26SPQR

Package

QFN-24L

Packing Type

Tape And Reel

Unit Price (US$)

0.795*

Distributor availability ofLNBH26SPQR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3997 1 Order Now

Distributor reported inventory date: 2019-10-03

Distributor Name

DIGIKEY

Stock

3997

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-10-03

Marketing Status

Active

Unit Price (US$)

0.795

Quantity

10000

ECCN (US)

EAR99

Country of Origin

-

(*) 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

Recommended for you

Evaluation Tools

    • Part Number

      Power supply evaluation board for LNB based on the LNBH26S

      Power supply evaluation board for LNB based on the LNBH26S

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS8975
      Dual LNBS supply and control I²C with step-up and IC interface
      5.0
      797.77 KB
      PDF
      DS8975

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

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LNBH26SPQR
Active
QFN-24L Industrial Ecopack2

LNBH26SPQR

Package:

QFN-24L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFN-24L

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.