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LNBH23 Datasheet Lnbs Supply/controller

Manufacturer: STMicroelectronics

Overview: LNBH23 LNBs supply and control IC with step-up and I²C interface.

General Description

Intended for analog and digital satellite receivers/sat-TV, sat-PC cards, the LNBH23 is a monolithic voltage regulator and interface IC, assembled in PowerSSO-24 ePAD and QFN32 (5 x 5 mm.) ePAD, specifically designed to provide the 13/18 V power supply and the 22 kHz tone signalling to the LNB down-converter in the antenna dish or to the multi-switch box.

In this application field, it offers a plete solution with extremely low ponent count, low power dissipation together with simple design and I²C standard interfacing.

Table 1.

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% @ 0.75 A), with integrated NMOS.
  • Selectable output current limit by external resistor.
  • Compliant with main satellite receiver systems specifications.
  • New accurate built-in 22 kHz tone generator suits widely accepted standards (patent pending).
  • Fast oscillator start-up facilitates DiSEqC™ encoding.
  • Built-in 22 kHz tone detector sup.

More Datasheets from STMicroelectronics

Part Number Description
LNBH23L LNB SUPPLY/CONTROLLER
LNBH2 LNB SUPPLY AND CONTROLLER
LNBH21 LNB SUPPLY/CONTROLLER
LNBH221 DUAL LNB SUPPLY/CONTROLLER
LNBH24 DUAL LNB SUPPLY/CONTROLLER
LNBH24L Dual LNBS supply/controller
LNBH25 LNB-supply / controller
LNBH25L LNB supply/controller
LNBH25LS LNB supply/controller
LNBH25S LNB-supply / controller

LNBH23 Distributor