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LNBP10SPSTN/a1000avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP11SPSTN/a21avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP12SP-TR |LNBP12SPTRST,STN/a10000avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP12SP-TR |LNBP12SPTRSTMN/a10000avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP13SPSTN/a200avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP13SP-TR |LNBP13SPTRSTMN/a1400avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP14SPST N/a1900avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP14SP-TR |LNBP14SPTRSTMN/a10000avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP14SP-TR |LNBP14SPTRST,STN/a10000avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP15SPSTMN/a100avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP15SP-TR |LNBP15SPTRSTMicroelectronicsN/a10395avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP16SP-TR |LNBP16SPTRSTN/a45avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP16SP-TR |LNBP16SPTRSTMN/a5511avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP20CRST ?N/a75avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP20PDST ?N/a155avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP20PD-TR |LNBP20PDTRSTN/a600avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP20PD-TR |LNBP20PDTRST,STN/a61200avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
LNBP20PD-TR |LNBP20PDTRSTMN/a10000avaiLNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)


LNBP20PD-TR ,LNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)LNBP10 SERIESLNBP20LNBP SUPPLY AND CONTROL VOLTAGEREGULATOR (PARALLEL INTERFACE) ■ COMPLETE INTERFA ..
LNBP20PD-TR ,LNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)PIN CONFIGURATIONS PIN NUMBER vs SALES TYPE (LNBP)SYMBOL NAME FUNCTION20CR 20PD 10SP 11SP 12SP 13 ..
LNBP20PD-TR ,LNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)PIN CONFIGURATIONS PIN NUMBER vs SALES TYPE (LNBP)SYMBOL NAME FUNCTION20CR 20PD 10SP 11SP 12SP 13 ..
LNBP21D2-TR ,LNBP SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACEABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV DC Input Voltage16 VCCV DC Input Voltage 25 VU ..
LNBP21PD ,LNBP SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACELNBP21LNBP SUPPLY AND CONTROL IC WITH2STEP-UP CONVERTER AND I C INTERFACE■ COMPLETE INTERFACE BETWE ..
LNBP21PD-TR ,LNBP SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACEABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV DC Input Voltage16 VCCV DC Input Voltage 25 VU ..
LRS1380J , STACKED CHIP 32M (X 16) BOOT BLOCK FLASH AND 4M (X 16) SRAM
LRS1381 , STACKED CHIP 32M FLASH AND 4M SRAM
LRS1383F , FLASH MEMORY 32M (X16) FLASH MEMORY 8M (X16) SRAM
LRS1383F , FLASH MEMORY 32M (X16) FLASH MEMORY 8M (X16) SRAM
LRS1387 , 64M (X16) FLASH 8M (X16) SRAM
LRS1805A , Stacked Chip 64M (x16) Flash Memory 16M (x16) Smartcombo RAM


LNBP10SP-LNBP11SP-LNBP12SP-TR-LNBP13SP-LNBP13SP-TR-LNBP14SP-LNBP14SP-TR-LNBP15SP-LNBP15SP-TR-LNBP16SP-TR-LNBP20CR-LNBP20PD-LNBP20PD-TR
LNB SUPPLY AND CONTROL VOLTAGE REGULATOR (PARALLEL INTERFACE)
1/18January 2003 COMPLETE INTERFACE FOR TWO LNBs
REMOTE SUPPLY AND CONTROL LNB SELECTION AND STAND-BY
FUNCTION BUILT-IN TONE OSCILLATOR FACTORY
TRIMMED AT 22KHz FAST OSCILLATOR START-UP FACILITATES
DiSEqC ENCODING TWO SUPPLY INPUTS FOR LOWEST
DISSIPATION BYPASS FUNCTION FOR SLAVE
OPERATION LNB SHORT CIRCUIT PROTECTION AND
DIAGNOSTIC AUXILIARY MODULATION INPUT EXTENDS
FLEXIBILITY CABLE LENGTH COMPENSATION INTERNAL OVER TEMPERATURE
PROTECTION BACKWARD CURRENT PROTECTION
DESCRIPTION

Intended for analog and digital satellite receivers,
the LNBP is a monolithic linear voltage regulator,
assembled in Multiwatt-15, PowerSO-20 and
PowerSO-10, specifically designed to provide the
powering voltages and the interfacing signals to
the LNB downconverter situated in the antenna
via the coaxial cable. Since most satellite
receivers have two antenna ports, the output
voltage of the regulator is available at one of two
logic-selectable output pins (LNBA, LNBB). When
the IC is powered and put in Stand-by (EN pin
LOW), both regulator outputs are disabled to allow
the antenna downconverters to be supplied/
controlled by others satellite receivers sharing the
same coaxial lines. In this occurrence the device
will limit at 3 mA (max) the backward current that
could flow from LNBA and LNBB output pins to
GND.
For slave operation in single dish, dual receiver
systems, the bypass function is implemented by
an electronic switch between the Master Input pin
(MI) and the LNBA pin, thus leaving all LNB
powering and control functions to the Master
Receiver. This electronic switch is closed when
the device is powered and EN pin is LOW.
The regulator outputs can be logic controlled to be
13 or 18 V (typ.) by mean of the VSEL pin for
remote controlling of LNBs. Additionally, it is
possible to increment by 1V (typ.) the selected
voltage value to compensate the excess voltage
drop along the coaxial cable (LLC pin HIGH).
In order to reduce the power dissipation of the
device when the lowest output voltage is selected,
the regulator has two Supply Input pins VCC1 and CC2 . They must be powered respectively at 16V
(min) and 23V (min), and an internal switch
automatically will select the suitable supply pin
according to the selected output voltage. If
adequate heatsink is provided and higher power
losses are acceptable, both supply pins can be
powered by the same 23V source without
affecting any other circuit performance.
The ENT (Tone Enable) pin activates the internal
oscillator so that the DC output is modulated by a
±0.3 V, 22KHz (typ.) square wave. This internal
oscillator is factory trimmed within a tolerance of
±2KHz, thus no further adjustments neither
external components are required.
A burst coding of the 22KHz tone can be
accomplished thanks to the fast response of the
ENT input and the prompt oscillator start-up. This
helps designers who want to implement the
DiSEqC protocols (*).
In order to improve design flexibility and to allow
implementation of newcoming LNB remote control
standards, an analogic modulation
LNBP10 SERIES
LNBP20

LNBP SUPPLY AND CONTROL VOLTAGE
REGULATOR (PARALLEL INTERFACE)
LNBP10 SERIES - LNBP20
2/18
input pin is available (EXTM). An appropriate DC
blocking capacitor must be used to couple the
modulating signal source to the EXTM pin. When
external modulation is not used, the relevant pin
can be left open.
Two pins are dedicated to the overcurrent
protection/monitoring: CEXT and OLF. The
overcurrent protection circuit works dynamically:
as soon as an overload is detected in either LNB
output, the output is shut-down for a time toffdetermined by the capacitor connected between
CEXT and GND. Simultaneously the OLF pin, that
is an open collector diagnostic output flag, from
HIGH IMPEDANCE state goes LOW.
After the time has elapsed, the output is resumed
for a time ton =1/15toff (typ.) and OLF goes in HIGH
IMPEDANCE. If the overload is still present, the
protection circuit will cycle again through toff and
ton until the overload is removed. Typical ton+toff
value is 1200ms when a 4.7μF external capacitor
is used.
This dynamic operation can greatly reduce the
power dissipation in short circuit condition, still
ensuring excellent power-on start up even with
highly capacitive loads on LNB outputs.
The device is packaged in Multiwatt15 for
thru-holes mounting and in PowerSO-20 for
surface mounting. When a limited functionality in a
smaller package matches design needs, a range
of cost-effective PowerSO-10 solutions is also
offered. All versions have built-in thermal
protection against overheating damage.
(*): External components are needed to comply to level 2.x and above (bidirectiona) DiSEqC bus hardware requirements. DiSEqC is a
trademark or EUTELSAT.
ORDERING CODES

(*) Available on request
PIN CONFIGUARATION (top view)
LNBP10 SERIES - LNBP20
3/18
TABLE A: PIN CONFIGURATIONS

NOTE: the limited pin availability of the PowerSO-10 package leads to drop some functions.
LNBP10 SERIES - LNBP20
4/18
ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
LOGIC CONTROLS TRUTH TABLE

NOTE: All logic input pins have internal pull-down resistor (typ. = 250KΩ)
LNBP10 SERIES - LNBP20
5/18
BLOCK DIAGRAM
LNBP10 SERIES - LNBP20
6/18
ELECTRICAL CHARACTERISTICS FOR LNBP SERIES (T
J = 0 to 85°C, CI = 0.22μF, CO =0.1μF, EN=H,
ENT=L, LLC=L, VIN1=16V, VIN2=23V IOUT=50mA, unless otherwise specified.)
LNBP10 SERIES - LNBP20
7/18
TYPICAL CHARACTERISTICS (unless otherwise specified T
j = 25°C)
Figure 1 : Output Voltage vs Output Current


Figure 2 : Tone Duty Cycle vs Temperature


Figure 3 : Tone Fall Time vs Temperature


Figure 4 : Tone Frequency vs Temperature


Figure 5 : Tone Rise Time vs Temperature


Figure 6 : Tone Amplitude vs Temperature


LNBP10 SERIES - LNBP20
8/18
Figure 7 : S.V.R. vs Frequency


Figure 8 : External Modulation vs Temperature


Figure 9 : Bypass Switch Drop vs Output Current


Figure 10 : LNBA External Modulation gain vs

Frequency
Figure 11 : Bypass switch Drop vs Output

Current
Figure 12 : overload Flag pin Logic LOW vs Flag

Current
LNBP10 SERIES - LNBP20
9/18
Figure 13 : Supply Voltage vs Temperature


Figure 14 : Supply Current vs Temperature


Figure 15 : Dynamic Overload protection (I
SC vs
Time)

Figure 16 : Tone Enable

Figure 17 : Tone Disable

Figure 18 : 22KHz Tone

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