LNBH21PD PDF Datasheet – LNB Supply AND Control IC

Part Number: LNBH21PD

Function: LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE

Package: Power SO 20 Pin Type

Manufacturer: STMicroelectronics

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LNBH21PD image

Description

Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBH21 is a
monolithic voltage regulator and interface IC, assembled in POWER SO-20, specifically
designed to provide the 13/18V power supply and the 22KHz tone signalling to the LNB
downconverter in the antenna or to the multiswitch box. In this application field, it offers a complete solution with extremely low component count, low power dissipation together with simple design and I2CTM standard interfacing.

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pinout

Features

1. COMPLETE INTERFACE BETWEEN LNB AND I2CTM BUS

2. BUILT-IN DC/DC CONTROLLER FOR SINGLE 12V SUPPLY OPERATION AND HIGH EFFICIENCY (Typ. 94% @ 750mA)

3. TWO SELECTABLE OUTPUT CURRENT LIMIT (450mA / 750mA)

4. BOTH COMPLIANT WITH EUTELSAT AND DIRECT OUTPUT VOLTAGE SPECIFICATION

5. ACCURATE BUILT-IN 22KHz TONE OSCILLATOR SUITS WIDELY ACCEPTED STANDARDS

LNBH21PD Datasheet