LNBK20PD-TR STMicroelectronics, LNBK20PD-TR Datasheet

IC LNB SUPPLY & CNTRL 20-PWRSOIC

LNBK20PD-TR

Manufacturer Part Number
LNBK20PD-TR
Description
IC LNB SUPPLY & CNTRL 20-PWRSOIC
Manufacturer
STMicroelectronics
Datasheet

Specifications of LNBK20PD-TR

Interface
Parallel
Voltage - Supply
15 V ~ 27 V
Package / Case
PowerSO-20 Exposed Bottom Pad
Mounting Type
Surface Mount
Polarity
Positive
Number Of Outputs
2
Output Type
Selectable
Output Voltage
13 V, 18 V
Line Regulation
50 mV
Load Regulation
150 mV
Input Voltage Max
28 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Maximum Power Dissipation
14000 mW
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Applications
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Part Number:
LNBK20PD-TR
Manufacturer:
ST
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Feature summary
Description
Intended for analog and digital satellite receivers,
the LNBK is a monolithic linear voltage regulator,
assembled in PowerSO-20 and SO-20,
specifically designed to provide the powering
voltages and the interfacing signals to the LNB
downconverter situated in the antenna
Order code
February 2007
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
Part number
LNBK20
LNB supply and control voltage regulator (parallel interface)
LNBK20PD-TR
PowerSO-20
TM
Packages
Rev. 8
via the coaxial cable. It has the same functionality
of the LNBP1X and LNBP20 series, at a reduced
output current capability. 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).
LNBK20D2-TR
PowerSO-20
SO-20
Tape & Reel
Packaging
LNBK20
SO-20
www.st.com
1/25
25

Related parts for LNBK20PD-TR

LNBK20PD-TR Summary of contents

Page 1

... In this occurrence the device will limit (max) the backward current that could flow from LNBA and LNBB output pins to GND. (See continuous description). Packages PowerSO-20 SO-20 LNBK20PD-TR LNBK20D2-TR Rev. 8 LNBK20 SO-20 Packaging Tape & Reel 1/25 www ...

Page 2

Contents 1 Description (continued ...

Page 3

LNBK20 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 ...

Page 4

Pin configuration 2 Pin configuration Figure 1. Pin connections (top view) PowerSO-20 Table 1. Pin description for PowerSO-20 SYMBOL NAME FUNCTION 15V to 27V supply Supply input V automatically selected CC1 1 when V 22V to 27V supply. ...

Page 5

LNBK20 Table 1. Pin description for PowerSO-20 SYMBOL NAME FUNCTION 22KHz tone Logic control input: see ENT enable truth table Timing capacitor used by the dynamic External overload protection. CEXT capacitor Typical application is 4.7µF for a 1200ms cycle External ...

Page 6

Pin configuration Table 2. Pin description for SO-20 PIN N° SYMBOL Line Length Compens. 1 LLC 2 OLF Over Load Flag LNBB 5, 6, 15, GND N.C. Not Connected 8 V CC1 9 V ...

Page 7

LNBK20 3 Maximum ratings Table 3. Absolute maximum ratings Symbol V DC Input voltage (V I CC1 V Output voltage O I Output current (LNBA, LNBB Logic input voltage (ENT, EN OSEL, VSEL, LLC Bypass switch ...

Page 8

Block diagram 4 Block diagram Figure 2. Block diagram 8/25 LNBK20 ...

Page 9

LNBK20 5 Electrical characteristics Table 6. Electrical characteristics for LNBK Series (T EN=H, ENT=L, LLC=L, V Symbol Parameter V V Supply voltage IN1 CC1 V V Supply voltage IN2 CC2 V Output voltage O1 V Output voltage O2 ∆V Line ...

Page 10

Electrical characteristics Table 6. Electrical characteristics for LNBK Series (T EN=H, ENT=L, LLC=L, V Symbol Parameter Control input pin logic V IH HIGH I Control pins input current IH I Supply current CC I Output backward current OBK Temperature shutdown ...

Page 11

LNBK20 6 Typical characteristics (unless otherwise specified T Figure 3. Output voltage vs output current Figure 5. Tone fall time vs temperature Figure 7. Tone rise time vs temperature = 25°C) J Figure 4. Tone duty cycle vs temperature Figure ...

Page 12

Typical characteristics Figure 9. S.V.R. vs Frequency Figure 11. Bypass switch drop vs output current Figure 13. Bypass switch drop vs output current 12/25 Figure 10. External modulation vs temperature Figure 12. LNBA External modulation gain vs frequency Figure 14. ...

Page 13

LNBK20 Figure 15. Supply current vs temperature Figure 17. Dynamic overload protection (I vs time) Figure 19. Tone disable Figure 16. Supply current vs temperature Figure 18. Tone enable SC Figure 20. 22KHz Tone Typical characteristics 13/25 ...

Page 14

Typical characteristics Figure 21. Enable time Figure 23. 18V to 13V Change 14/25 Figure 22. Disable time Figure 24. 18V to 13V Change LNBK20 ...

Page 15

LNBK20 7 Typical application schematics Figure 25. Two antenna ports receiver MCU+V 10uF C2 AUX DATA R1 47K Vcc I/Os Figure 26. Single antenna receiver with master receiver port MCU+V 10uF C2 AUX DATA R1 47K Vcc I/Os 17V 11 ...

Page 16

Typical application schematics Figure 27. Using serial bus to save MPU I/os MCU+V R1 AUX DATA 47K 1 STR CLK 4094 MCU+V I/Os Vcc Figure ...

Page 17

LNBK20 Figure 29. Connecting together V 4 VSEL 7 ENT OSEL LNBP10SP MCU+V Vcc I/Os Figure 30. Single antenna receiver with master receiver port - low cost solution C2 9 AUX DATA EXTM 10µF 4 VSEL 7 ...

Page 18

Typical application schematics Figure 31. Single antenna receiver with overload diagnostic MCU+V C2 AUX DATA 10µF R1 47K Vcc I/Os 18/25 17V 9 1 EXTM VCC1 2 VCC2 3 LNBA 10 OLF 8 4 CEXT VSEL 7 ENT 4.7µF C1 ...

Page 19

LNBK20 8 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 ...

Page 20

Package mechanical data DIM. MIN 0. 0.40 c 0.23 D (1) 15.80 E 13. (1) 10 0° T (1) ...

Page 21

LNBK20 DIM. MIN. A 2.35 A1 0.1 B 0.33 C 0.23 D 12. 10.00 h 0.25 L 0.4 k 0° ddd SO-20 MECHANICAL DATA mm. TYP MAX. 2.65 0.30 0.51 0.32 13.00 7.6 1.27 10.65 0.75 ...

Page 22

Package mechanical data Tape & Reel PowerSO-20 MECHANICAL DATA DIM. MIN 12 15.1 Bo 16.5 Ko 3.8 Po 3.9 P 23.9 W 23.7 22/25 mm. TYP MAX. MIN. 330 13.2 0.504 0.795 ...

Page 23

LNBK20 Tape & Reel SO-20 MECHANICAL DATA DIM. MIN 12 10.8 Bo 13.2 Ko 3.1 Po 3.9 P 11.9 mm. TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 30.4 11 0.425 13.4 ...

Page 24

Revision history 9 Revision history Table 7. Revision history Date Revision 20-Sep-2006 7 14-Feb-2007 8 24/25 Order Codes has been updated and new template. Order Codes has been updated. Changes LNBK20 ...

Page 25

... LNBK20 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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