LNBH26LS datasheet(1/33 Pages) STMICROELECTRONICS

No de pièce	LNBH26LS

Description	Dual LNBS supply and control IC with step-up and IC interface

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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December 2013

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This is information on a product in full production.

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LNBH26LS

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

Datasheet - production data

Features



Complete interface between then 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 (8 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 high efficiency

step-up PWM with integrated power N-MOS

allowing low power losses



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

Description

Intended for analog and digital DUAL satellite

receiver/Sat-TV, Sat-PC cards, the LNBH26LS is

a monolithic voltage regulator and IC interface,

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.

Table 1: Device summary

Order code

Package

Packaging

LNBH26LSPQR

QFN24 (4x4)

Tape and reel

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STMicroelectronics	LNBH26L	944Kb / 28P	Selectable output current limit by external resistor 01-Mar-2012
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Fabricant	No de pièce	Fiches technique	Description
STMicroelectronics	LNBEH21	588Kb / 22P	LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND IC INTERFACE 05-Jul-2004
	LNBH24	446Kb / 30P	Dual LNB supply and control IC with step-up and I2C interface 11-Feb-2008
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	LNBH25LPQR	909Kb / 28P	LNB supply and control IC with step-up and I2C interface 15-Feb-2012
	LNBH26PQR	1Mb / 38P	Dual LNBS supply and control IC with step-up and I짼C interface 03-Feb-2012
	LNBH24LQTR	537Kb / 25P	Dual LNBS supply and control IC with step-up and I짼C interface 18-Mar-2010
	LNBH25S	1Mb / 37P	LNB supply and control IC with step-up and IC interface 24-Mar-2015
	LNBH24L	537Kb / 25P	Dual LNBS supply and control IC with step-up and I²C interface 18-Mar-2010
	LNBH26S	803Kb / 35P	Dual LNBS supply and control I2C with step-up and IC interface 14-Jun-2018

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