Datasheet > LNBH26S

LNBH26S

更新时间： 2024-11-28 14:58:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
35页	797K
描述
双路LNB电源和控制IC，带升压和I2C接口

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LNBH26S 数据手册

LNBH26S

Datasheet

Dual LNBS supply and control I²C with step-up and IC 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% @ 0.5 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

Applications

•

STB satellite receivers

TV satellite receivers

PC card satellite receivers

Maturity status link

LNBH26S

Description

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 4 x

4 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.

Device summary

Order code

LNBH26SPQR

QFN24 (4 x 4)

Tape and reel

Package

Packing

DS8975 - Rev 5 - June 2018

www.st.com

For further information contact your local STMicroelectronics sales office.

12 3 4 5 6 7...35

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