LNBP8 LNBP9 LNB Supply and control voltage regulator Feature summary ■ Simplest integrated solution for the LNB remote supply and control ■ 500mA Guaranteed output current ■ Dual input supply for reducing power dissipation ■ 22KHZ Built-in tone oscillator (LNBP9 version) ■ Fast oscillator start-up for DiSEqCTM encoding (LNBP9 version) ■ Auxiliary modulation input for more flexibility (LNBP8 version) ■ Stand-by function ■ Short circuit and overtemperature protection ■ Available in through-hole package Description u d o t e l o s b O c u d o r P o s b O - The regulator output can be logic controlled to be 13V or 18V (typ.) by mean of the VSEL pin for the remote controlling of the LNB. In order to reduce the power dissipation of the device when the lowest output voltage is selected, the regulator has 2 supply inputs (VCC1 and VCC2). They must be powered respectively at 15V (min.) and 22V (min.), and an internal switch will automatically select the appropriate supply voltage according to the selected output voltage. r P e ) s t( ..The TONE pin (only for the LNBP9 version) activates the internal oscillator so that the DC output is modulated by a 22KHz square wave. This internal oscillator is factory trimmed within a tolerance of +/- 2KHz, thus no further adjustment or external components are required. A burst coding of the 22KHz tone can be accomplished thanks to the fast response of the TONE input and the prompt oscillator start-up. This helps designers which want to implement the DiSEqCTM protocols. In order to improve design flexibility and to allow implementation of other LNB remote control standards, an analogic modulation input pin (EXTM) is available (LNBP8 version only). An appropriate DC blocking capacitor must be used to couple the modulating signal source to the EXTM pin. Both versions integrate thermal and short circuit protection. The device is packaged in PowerFlex for an easy through-hole mounting. If an 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. e t le Intended for analog and digital satellite receivers, the LNBP is a monolithic linear voltage regulator, assembled in PowerFlexTM, specifically designed to provide the powering voltages and the interfacing signals to the LNB down-converter. ) s ( ct SPAK-7L (PowerFlexTM) When the IC is powered and put in Stand-by (EN pin LOW), the regulator output is disabled and the IC power consumption is reduced to 300µA typ. Order code Package Packaging SPAK-7L Tape & reel LNBP8 LNBP8K7 LNBP8K7-R LNBP9 LNBP9K7 LNBP9K7-R Part number September 2006 Rev. 3 1/13 www.st.com 13 LNBP8-LNBP9 Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 c u d e t le ) s ( ct u d o r P e t e l o s b O 2/13 o s b O - o r P ) s t( LNBP8-LNBP9 Pin configuration 1 Pin configuration Figure 1. Pin connections (top view) Table 1. Pin descriptions Name 1 VCC1 Supply Input 1: 15V to 25V supply. It is automatically selected when VO = 13V 2 VCC2 Supply Input 2: 22V to 25V supply. It is automatically selected when VO = 18V 3 function ) s t( Pin N° c u d o r P OUTPUT Regulator output. It is 13V typ. when VSEL LOW and 18V typ. when VSEL HIGH 4 GND GROUND 5 VSEL Output Voltage Selection: Logic Control Input; if LOW VO = 13V, when HIGH VO = 18V 6 ENABLE 7 (LNBP9) TONE Logic Control Input; force HIGH to activate the internal 22KHz tone 7 (LNBP8) EXTM External Modulation: Needs DC decoupling to the AC source. If not used can be left floating e t le Logic Control Input; force LOW to put the IC in shutdown ) s ( ct o s b O - u d o r P e t e l o s b O 3/13 Maximum ratings LNBP8-LNBP9 2 Maximum ratings Table 2. Absolute maximum ratings Symbol VCC1, VCC2 Parameter Input voltage ENABLE, Logic input voltage TONE, VSEL Value Unit -0.3 to 28 V -0.3 to 7 V VO Output voltage -0.3 to 28 V TJ Operating junction temperature range -40 to 125 °C Storage temperature range -55 to 150 °C TSTG Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Table 3. Thermal data Symbol RthJC Parameter Thermal resistance junction-case u d o r P e t e l o s b O 4/13 o r P 2 e t le ) s ( ct c u d Value o s b O - ) s t( Unit °C/W LNBP8-LNBP9 Block diagram 3 Block diagram Figure 2. Block diagram c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 5/13 Electrical characteristics LNBP8-LNBP9 4 Electrical characteristics Table 4. Electrical characteristics for LNBP Series (VCC1 = 16V, VCC2 = 22V, CI1 = CI2 = 0.22µF, CO =0.1µF, Enable = H, Tone = L (LNBP9), EXTM floating (LNBP8), IO = 50mA, TJ = 0 to 85°C unless otherwise specified.) Symbol Parameter Test conditions Min. Typ. Max. Unit VCC1 VCC Supply voltage input 1 IO = 500 mA, TONE = H, VSEL = L 15 25 V VCC2 VCC Supply voltage input 2 IO = 500 mA, TONE = H, VSEL = H 22 25 V IO = 500 mA, VSEL = L 12.5 13 13.5 V IO = 500 mA, VSEL = H 17.3 18 18.7 V VCC1 = 15 to 18V, VSEL = L 4 40 VCC2 = 22 to 25V, VSEL = H 4 40 VCC1 = VCC2 = 22V, IO = 50 to 500mA VSEL = L or H 80 180 mV 800 mA 24 KHz 0.72 0.9 V 50 60 % 10 15 µs 400 mV VO Output voltage ∆VO Line regulation ∆VO Load regulation IMAX Output current limiting fTONE Tone frequency LNBP9 version, TONE = H 20 ATONE Tone amplitude LNBP9 version, TONE = H 0.55 DTONE Tone duty cycle LNBP9 version, TONE = H Tone rise and fall time LNBP9 version, TONE = H GEXTM External modulation gain LNBP8 version, ∆VO/∆VEXTM, f = 10Hz to 40KHz VEXTM External modulation input voltage LNBP8 version, AC Coupling ZEXTM External modulation impedance LNBP8 version, f = 10Hz to 40KHz VIL Control input logic LOW ENABLE, TONE (LNBP9 version), VSEL VIH Control input logic HIGH IIH Control pins input current tr, tf t e l o ICC bs TSHDN O 6/13 o r P e 500 Temperature shutdown 5 (s) b O - ct ENABLE, TONE (LNBP9 version), VSEL c u d 22 ro P e let 40 so du Supply current mV ) s t( 5 Ω 400 0.8 2.5 V V VIH = 5V, ENABLE, TONE (LNBP9 version), VSEL 20 Output disabled (ENABLE = L) 0.3 1 mA Output enabled (ENABLE = H), TONE = H, IO = 500mA 3 6 mA 150 µA °C LNBP8-LNBP9 Typical application circuits 5 Typical application circuits Figure 3. LNBP9 with 22KHz Tone control pin c u d Figure 4. e t le LNBP8 with external 22KHz Input pin (EXTM) ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 7/13 Typical application circuits Figure 5. LNBP8-LNBP9 Single supply solution c u d In a single supply configuration the presence of the input resistor in the 12-15Ω range is suggested only to reduce the device power dissipation during the 13V output condition. The resistor can be omitted in spite of power dissipation increase. 2. The input diodes are mandatory to protect the device from any reverse current. e t le u d o r P e t e l o 8/13 o r P 1. ) s ( ct s b O ) s t( o s b O - LNBP8-LNBP9 6 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® 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. c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 9/13 Package mechanical data LNBP8-LNBP9 SPAK-7L MECHANICAL DATA mm. DIM. MIN. A 1.78 A2 0.03 C TYP inch MAX. MIN. 2.03 0.070 0.13 0.001 TYP. 0.005 0.25 C1 0.010 0.25 D 1.02 MAX. 0.080 0.010 1.27 0.040 0.050 D1 7.87 8.13 0.310 0.320 F 0.63 0.79 0.025 0.031 G 1.27 0.050 G1 7.62 0.3 H1 5.59 0.220 H2 9.27 9.52 0.365 H3 8.89 9.14 0.350 L 10.41 10.67 0.410 L1 0.295 8.89 9.14 0.350 M 0.79 1.04 0.031 6˚ 3˚ N P e let V 0.25 3˚ ) s ( ct o s b O - uc d o r 7.49 L2 ) s t( 0.375 0.360 0.420 0.360 0.041 0.010 6˚ u d o r P e t e l o s b O PO13F2/A 10/13 LNBP8-LNBP9 Package mechanical data Tape & Reel SPAK-xL MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 180 13.0 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 7.086 0.504 0.512 0.519 14.4 0.567 Ao 9.70 9.80 9.90 0.382 0.386 0.390 Bo 10.85 10.95 11.05 0.423 0.427 Ko 2.30 2.40 2.50 0.090 0.094 Po 3.9 4.0 4.1 0.153 0.157 ) s t( P 11.9 12.0 12.1 0.468 0.472 ) s ( ct r P e t le 0.431 od uc 0.098 0.161 0.476 o s b O - u d o r P e t e l o s b O 11/13 Revision history LNBP8-LNBP9 7 Revision history Table 5. Revision history Date Revision Changes 09-Nov-2004 1 First release. 04-Jul-2005 2 Remove package heptawatt and add package SPAK-7L. 20-Sep-2006 3 Add value VO on table 2 and new template. c u d e t le ) s ( ct u d o r P e t e l o s b O 12/13 o s b O - o r P ) s t( LNBP8-LNBP9 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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