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LNBH26S Datasheet(PDF) 1 Page - STMicroelectronics

Part # LNBH26S
Description  Dual LNBS supply and control I2C with step-up and IC interface
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH26S Datasheet(HTML) 1 Page - STMicroelectronics

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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
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.
Maturity status link
LNBH26S
Device summary
Order code
LNBH26SPQR
Package
QFN24 (4 x 4)
Packing
Tape and reel
Dual LNBS supply and control I²C with step-up and IC interface
LNBH26S
Datasheet
DS8975 - Rev 5 - June 2018
For further information contact your local STMicroelectronics sales office.
www.st.com


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