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LNBP20 / LNBP1X series
LNBP supply and control voltage regulator (parallel interface)
Feature summary

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 DiSEqCTM 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 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. (See continuous description).
PowerSO-20 PowerSO-10
10
1

Description
Intended for analog and digital satellite receivers, the LNBP is a monolithic linear voltage regulator, assembled in PowerSO-20 and PowerSO-10, specifically designed to provide the powering voltages and the interfacing signals to the LNB downconverter situated in the antenna
Order codes
Part number LNBP10 LNBP11 LNBP12 LNBP13 LNBP14 LNBP15 LNBP16 LNBP20 May 2007 LNBP20PD-TR Rev. 10 1/24
www.st.com 24
Package PowerSO-20 PowerSO-10 LNBP10SP-TR LNBP11SP-TR LNBP12SP-TR LNBP13SP-TR LNBP14SP-TR LNBP15SP-TR LNBP16SP-TR
LNBP20 / LNBP1X series
Contents
1 2 3 4 5 6 7 8 9 Description (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Typical application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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LNBP20 / LNBP1X series
Description (continued)
1
Description (continued)
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 VCC2. 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 DiSEqCTM protocols (a). In order to improve design flexibility and to allow implementation of newcoming LNB remote control standards, an analogic modulation 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 toff determined 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 4.7F 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 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.
a. External components are needed to comply to level 2.x and above (bidirectional) DiSEqCTM bus hardware requirements. DiSEqCTM is a trademark or EUTELSAT.
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Pin configuration
LNBP20 / LNBP1X series
2
Figure 1.
Pin configuration
Pin connections (top view)
PowerSO-20
PowerSO-10
Table 1.
SYMBOL
Pin Description
PIN NUMBER vs SALES TYPE (LNBP) NAME FUNCTION 20PD 10SP 11SP 12SP 13SP 14SP 15SP 16SP
VCC1
15V to 25V supply. It is Supply input automatically selected 1 when VOUT= 13 or 14V 22V to 25V supply. It is Supply input automatically selected 2 when VOUT= 18 or 19V See truth table voltage and port selection. In stand-by mode this port is powered by the MI pin via the internal bypass switch Logic control input: see truth table Logic control input: see truth table Logic control input: see truth table Circuit ground. It is internally connected to the die frame
2
1
1
1
1
1
1
VCC2
3
2
2
2
2
2
2
2
LNBA
Output port
4
3
3
3
3
3
3
3
VSEL
Output voltage selection:13 or 18V (typ) Port enable Port selection
5
4
4
4
4
4
4
4
EN OSEL
6 7 1 10 11 20
5 9
5 NA
5 NA
5 NA
5 NA
5 NA
5 NA
GND
Ground
6
6
6
6
6
6
6
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LNBP20 / LNBP1X series Table 1.
SYMBOL
Pin configuration
Pin Description
PIN NUMBER vs SALES TYPE (LNBP) NAME 22KHz tone enable FUNCTION 20PD 10SP 11SP 12SP 13SP 14SP 15SP 16SP Logic control input: see truth table Timing capacitor used by the dynamic overload protection. Typical application is 4.7F for a 1200ms cycle External modulation input. Needs DC decoupling to the AC source. if not used, can be left open. Logic control input: see truth table Logic output (open collector). Normally in HIGH IMPEDANCE, goes LOW when current or thermal overload occurs
ENT
13
7
7
7
7
7
7
7
CEXT
External capacitor
14
8
8
8
8
8
8
8
EXTM
External modulator
15
NA
NA
NA
9
NA
9
9
LLC
Line length compens. (1V typ)
16
NA
NA
9
NA
9
NA
10
OLF
Over load flag
17
NA
9
NA
NA
10
10
NA
MI
In stand-by mode, the voltage on MI is routed to Master input LNBA pin. Can be left open if bypass function is not needed Output port See truth tables for voltage and port selection
18
NA
10
10
10
NA
NA
NA
LNBB
19
10
NA
NA
NA
NA
NA
NA
Note:
The limited pin availability of the PowerSO-10 package leads to drop some functions.
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Maximum ratings
LNBP20 / LNBP1X series
3
Table 2.
Symbol VI VO IO VI ISW PD Tstg Top
Maximum ratings
Absolute maximum ratings
Parameter DC Input voltage (VCC1, VCC2, MI) Output voltage Output current (LNBA, LNBB) Logic input voltage (ENT, EN OSEL, VSEL, LLC) Bypass switch current Power dissipation at Tcase < 85C Storage temperature range Operating junction temperature range Value 28 -0.3 to 28 Internally Limited -0.5 to 7 900 14 -40 to +150 -40 to +125 Unit V V mA V mA W C C
Note:
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Thermal data
Parameter Thermal resistance junction-case PowerSO-20 2 PowerSO-10 2 Unit C/W
Table 3.
Symbol RthJC
Table 4.
Logic Controls Truth Table
PIN NAME OLF ENT EN OSEL VSEL LLC OSEL X L L L L H H H H VSEL X L H L H L H L H LLCO X L L H H L L H H L IOUT > IOMAX or Tj > 150C 22KHz tone OFF See Table Below See Table Below See Table Below See Table Below VLNBA VMI - 0.4V (typ.) 13V (typ.) 18V (typ.) 14V (typ.) 19V (typ.) Disabled Disabled Disabled Disabled H IOUT < IOMAX 22KHz tone ON See Table Below See Table Below See Table Below See Table Below VLNBB Disabled Disabled Disabled Disabled Disabled 13V (typ.) 18V (typ.) 14V (typ.) 19V (typ.) OUT IN IN IN IN IN
CONTROL I/O
EN L H H H H H H H H
Note:
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All logic input pins have internal pull-down resistor (typ. = 250KW)
LNBP20 / LNBP1X series
Diagram
4
Figure 2.
Diagram
Block diagram
7/24
Electrical characteristics
LNBP20 / LNBP1X series
5
Table 5.
Symbol VIN1 VIN2 VO1 VO2 VO VO SVR IMAX tOFF tON fTONE ATONE DTONE tr, tf GEXTM VEXTM ZEXTM VSW VOL IOZ VIL
Electrical characteristics
Electrical characteristics for LNBP Series (TJ = 0 to 85C, CI = 0.22F, CO = 0.1F, EN=H, ENT=L, LLC=L, VIN1=16V, VIN2=23V IOUT=50mA, unless otherwise specified.)
Parameter VCC1 Supply voltage VCC2 Supply voltage Output voltage Test conditions IO = 500 mA, ENT=H, VSEL=L, LLC=L IO = 500 mA, ENT=H, VSEL=L, LLC=H IO = 500 mA, ENT=H, VSEL=L, LLC=L IO = 500 mA, VSEL=L, LLC=H IO = 500 mA, VSEL=H, LLC=L IO = 500 mA, VSEL=H, LLC=H IO = 500 mA, VSEL=L, LLC=L IO = 500 mA, VSEL=L, LLC=H VIN1=15 to 18V, VOUT=13V VIN2=22 to 25V, VOUT=18V VIN1=VIN2=22V, VOUT=13 or 18V IO = 50 to 500mA VIN1 = VIN2 = 23 0.5Vac, fac = 120 Hz, 500 Output Shorted, CEXT = 4.7F Output Shorted, CEXT = 4.7F ENT=H ENT=H ENT=H ENT=H VOUT/VEXTM, f = 10Hz to 40KHz AC Coupling f = 10Hz to 40KHz EN=L, ISW=300mA, VCC2-VMI=4V IOL=8mA VOH = 6V 400 0.35 0.28 0.6 0.5 10 0.8 20 0.55 40 5 12.5 Min. 15 16 22 23 17.3 18 19 13 14 4 4 80 45 650 1100 tOFF/15 22 0.72 50 10 5 400 mVPP V V A V 24 0.9 60 15 800 40 40 180 13.5 Typ. Max. 25 25 25 25 18.7 Unit V V V V V V V V mV mV mV dB mA ms ms KHz VPP % s
Output voltage
Line regulation Load regulation Supply voltage rejection Output current limiting Dynamic overload protection OFF time Dynamic overload protection ON time Tone frequency Tone amplitude Tone duty cycle Tone rise and fall time External modulation gain External modulation input voltage External modulation impedance Bypass switch voltage drop (MI to LNBA) Overload flag pin logic LOW Overload flag pin OFF state leakage current Control input pin logic LOW
8/24
LNBP20 / LNBP1X series Table 5.
Symbol VIH IIH ICC IOBK TSHDN
Electrical characteristics
Electrical characteristics for LNBP Series (TJ = 0 to 85C, CI = 0.22F, CO = 0.1F, EN=H, ENT=L, LLC=L, VIN1=16V, VIN2=23V IOUT=50mA, unless otherwise specified.)
Parameter Control input pin logic HIGH Control pins input current Supply current Output backward current Temperature shutdown threshold VIH = 5V Output Disabled (EN=L) ENT=H, IOUT=500mA EN=L, VLNBA = VLNBB = 18V VIN1 = VIN2 = 22V or floating Test conditions Min. 2.5 20 0.3 3.1 0.2 150 1 6 3 Typ. Max. Unit V A mA mA mA C
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Typical characteristics
LNBP20 / LNBP1X series
6
Figure 3.
Typical characteristics
(unless otherwise specified TJ = 25C) Output voltage vs output current Figure 4. Tone duty cycle vs temperature
Figure 5.
Tone fall time vs temperature
Figure 6.
Tone frequency vs temperature
Figure 7.
Tone rise time vs temperature
Figure 8.
Tone amplitude vs temperature
10/24
LNBP20 / LNBP1X series
Typical characteristics
Figure 9.
S.V.R. vs Frequency
Figure 10. External modulation vs temperature
Figure 11. Bypass switch drop vs output current
Figure 12. LNBA External modulation gain vs frequency
Figure 13. Bypass switch drop vs output current
Figure 14. Overload flag pin logic low vs flag current
11/24
Typical characteristics
LNBP20 / LNBP1X series
Figure 15. Supply voltage vs temperature
Figure 16. Supply voltage vs temperature
Figure 17. Dynamic overload protection (ISC vs time)
Figure 18. Tone enable
Figure 19. Tone disable
Figure 20. 22KHz Tone
12/24
LNBP20 / LNBP1X series Figure 21. Enable time Figure 22. Disable time
Typical characteristics
Figure 23. 18V to 13V Change
Figure 24. 18V to 13V Change
13/24
Typical application schematics
LNBP20 / LNBP1X series
7
Typical application schematics
Figure 25. Two antenna ports receiver
MCU+V 10uF C2 AUX DATA R1 11 EXTM VCC1 VCC2 LNBA LNBB MI CEXT 1 2 3 15 14 10 4.7F C1 + GND 8 2x 0.1F 2x 47nF C3 C4 C5 C6 TUNER 17V 24V ANT CONNECTORS
JA
47K
13
OLF
JB
4 9 5 7 12
VSEL ENT EN OSEL LLC LNBP20CR
Vcc
I/Os MCU
I/Os
Figure 26. Single antenna receiver with master receiver port
17V 10uF C2 AUX DATA R1 47K 13 11 EXTM VCC1 VCC2 LNBA LNBB MI CEXT 1 2 3 15 14 10 4.7F C1 + GND 8 2x 0.1F C3 C4 C5 47nF TUNER 24V
MCU+V
ANT
OLF
MASTER
4 9 5 7 12
VSEL ENT EN OSEL LLC LNBP20CR
Vcc
I/Os MCU
I/Os
14/24
LNBP20 / LNBP1X series
Typical application schematics
Figure 27. Using serial bus to save MPU I/os
17V MCU+V C2 R1 47K 10uF 13 OLF VSEL ENT EN OSEL LLC LNBP20CR AUX DATA 11 EXTM VCC1 VCC2 LNBA LNBB MI CEXT 1 2 3 15 14 10 4.7F C1 + GND 8 2x 0.1F 2x 47nF C3 C4 C5 C6 TUNER ANT CONNECTORS JA 24V
JB
1 2 3 15
STR D CLK OE
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 QS QS
4 5 6 7 14 13 12 11 9 10
4 9 5 7 12
4094 SERIAL BUS MCU+V
I/Os
Vcc MCU
Figure 28. Two antenna ports receiver - low cost solution
17V 24V
ANT CONNECTORS VCC1 VCC2 LNBA LNBB 1 2 3 10 JB 4 7 5 9 VSEL ENT EN OSEL GND LNBP10SP MCU+V CEXT 8 4.7F 6 2x 0.1F 2x 47nF C1 + C3 C4 C5 C6 TUNER
JA
Vcc
I/Os MCU
I/Os
15/24
Typical application schematics
LNBP20 / LNBP1X series
Figure 29. Connecting together VCC1 and VCC2
24V ANT CONNECTORS VCC1 VCC2 LNBA LNBB 1 2 3 10 JB 4 7 5 9 VSEL ENT EN OSEL CEXT 8 4.7F 6 0.1F 2x 47nF C1 + C4 C5 C6 TUNER
JA
GND LNBP10SP MCU+V
Vcc
I/Os MCU
I/Os
Figure 30. Single antenna receiver with master receiver port - low cost solution
17V C2 AUX DATA 10F 9 EXTM VCC1 VCC2 LNBA MI 4 7 5 VSEL ENT EN 6 GND LNBP13SP MCU+V 2x 0.1F CEXT 10 8 4.7F C1 + C3 C4 C5 47nF TUNER MASTER 1 2 3 ANT 24V
Vcc
I/Os MCU
I/Os
16/24
LNBP20 / LNBP1X series
Typical application schematics
Figure 31. Single antenna receiver with overload diagnostic
17V MCU+V C2 AUX DATA R1 10F 10 47K 4 7 5 9 EXTM VCC1 VCC2 LNBA OLF 8 4.7F C1 + GND LNBP15SP 6 2x 0.1F C3 C4 1 2 3
24V
ANT
VSEL ENT EN
CEXT
TUNER C5 47nF
Vcc
I/Os MCU
I/Os
17/24
Package mechanical data
LNBP20 / LNBP1X series
8
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
18/24
LNBP20 / LNBP1X series
Package mechanical data
PowerSO-20 MECHANICAL DATA
DIM. A a1 a2 a3 b c D (1) E e e3 E1 (1) E2 E3 G H h L N S T mm. MIN. 0.10 0 0.40 0.23 15.80 13.90 1.27 11.43 10.90 5.8 0 15.5 0.80 0 10.0 11.10 2.90 6.2 0.10 15.9 1.10 1.10 10 8 0.4291 0.2283 0.0000 0.6102 0.0314 0 0.3937 TYP MAX. 3.60 0.30 3.30 0.10 0.53 0.32 16.00 14.50 MIN. 0.0039 0 0.0157 0.0090 0.6220 0.5472 0.0500 0.4500 0.4370 0.1141 0.2441 0.0039 0.6260 0.0433 0.0433 10 8 inch TYP. MAX. 0.1417 0.0118 0.1299 0.0039 0.0209 0.0013 0.630 0.5710
(1) "D and E1" do not include mold flash or protusions - Mold flash or protusions shall not exceed 0.15mm (0.006")
0056635/I
19/24
Package mechanical data
LNBP20 / LNBP1X series
PowerSO-10 MECHANICAL DATA
DIM. A A1 A2 A3 b c D D1 E E1 E2 E3 e L 0.95 0 3.40 1.25 0.40 0.35 9.40 7.40 13.80 9.30 7.20 5.90 1.27 1.65 8 0.037 0 mm. MIN. TYP MAX. 3.70 0.10 3.60 1.35 0.53 0.55 9.60 7.60 14.40 9.50 7.60 6.10 0.134 0.049 0.016 0.014 0.370 0.291 0.543 0.366 0.283 0.232 0.050 0.065 8 MIN. inch TYP. MAX. 0.146 0.004 0.142 0.053 0.021 0.022 0.378 0.299 0.567 0.374 0.299 0.240
0068039-E
20/24
LNBP20 / LNBP1X series
Package mechanical data
Tape & Reel PowerSO-20 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P W 15.1 16.5 3.8 3.9 23.9 23.7 12.8 20.2 60 30.4 15.3 16.7 4.0 4.1 24.1 24.3 0.594 0.650 0.149 0.153 0.941 0.933 TYP MAX. 330 13.2 0.504 0.795 2.362 1.197 0.602 0.658 0.157 0.161 0.949 0.957 MIN. TYP. MAX. 12.992 0.519 inch
21/24
Package mechanical data
LNBP20 / LNBP1X series
Tape & Reel PowerSO10 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P W 14.9 9.9 4.15 3.9 23.9 23.7 12.8 20.2 60 30.4 15.1 10.1 4.35 4.1 24.1 24.3 0.587 0.390 0.163 0.153 0.941 0.933 TYP MAX. 330 13.2 0.504 0.795 2.362 1.197 0.594 0.398 0.171 0.161 0.949 0.957 MIN. TYP. MAX. 12.992 0.519 inch
22/24
LNBP20 / LNBP1X series
Revision history
9
Table 6.
Date
Revision history
Revision history
Revision 7 8 9 10 Changes Typing Error VO1 and VO2 on Table 6 - Page 6. Table 2 has been updated on GND row. Add value VO on table 2 and new template. Order codes has been updated.
08-Jun-2004 21-Dec-2004 07-Sep-2006 03-May-2007
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LNBP20 / LNBP1X series
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