Datasheet4U Logo Datasheet4U.com

LNBH25 - LNB-supply / controller

General Description

Intended for analog and digital satellite receivers/Sat-TV and Sat-PC cards, the LNBH25 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 signalling to the LNB down-converter in the antenna dish or

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 receivers output voltage specification (15 programmable levels).
  • Accurate built-in 22 kHz tone generator suits widely accepted standards.
  • 22 kHz tone waveform integrity guaranteed also at no load condition.
  • Low-drop post regulator and hi.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LNBK20D2 LNB SUPPLY AND CONTROL VOLTAGE REGULATOR ST Microelectronics

Other Datasheets by STMicroelectronics

Part Number Description
LNBH25L LNB supply/controller
LNBH25LS LNB supply/controller
LNBH25S LNB-supply / controller
LNBH2 LNB SUPPLY AND CONTROLLER
LNBH21 LNB SUPPLY/CONTROLLER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LNBH25 LNB supply and control IC with step-up and I²C interface 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.