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LNBH29PTR Datasheet(PDF) 1 Page - STMicroelectronics

Part # LNBH29PTR
Description  LNB supply and control IC with step-up and I²C interface
PDF  31 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH29PTR Datasheet(HTML) 1 Page - STMicroelectronics

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This is information on a product in full production.
March 2013
DocID023065 Rev 3
1/31
31
LNBH29
LNB supply and control IC with step-up and I²C interface
Datasheet
- production data
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 specifications
 Accurate built-in 22 kHz tone generator suits
widely accepted standards
 EXTM pin, auxiliary 22 kHz modulation input
(LNBH29E) extends design flexibility
 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 satellite
receivers/Sat-TV and Sat-PC cards, the LNBH29
series is a monolithic voltage regulator and
interface IC, assembled in QFN16 (3x3) and
QFN16 (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 dish or to the multi-switch box. In this
application field, it offers a complete solution with
extremely low component count, low power
dissipation together with a simple design and I²C
standard interfacing.
QFN16 (4x4) / (3x3)
Table 1. Device summary
Order codes
Packages
Packaging
LNBH29PTR
QFN16 (3x3)
Tape and reel
LNBH29EPTR
QFN16 (3x3)
Tape and reel
LNBH29QTR
QFN16 (4x4)
Tape and reel
LNBH29EQTR
QFN16 (4x4)
Tape and reel
www.st.com


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