LNBH221PD-TR STMicroelectronics, LNBH221PD-TR Datasheet
LNBH221PD-TR
Specifications of LNBH221PD-TR
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LNBH221PD-TR Summary of contents
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Features ■ All the features are the same for both section ■ Complete and independent interface between LNBS and relevant I²C bus ■ Built-in DC-DC controller for single 12 V supply operation and high efficiency (typ 500 ...
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Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Diagram Figure 1. Block diagram Gate Gate Sense Sense Vup Vup Vcc Vcc Byp Byp SDA SDA SCL SCL ADDR ADDR DSQIN DSQIN Gate Gate Sense Sense Vup Vup Vcc Vcc Byp Byp SDA SDA SCL SCL ADDR ADDR ...
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Maximum ratings Table 1. Absolute maximum ratings Symbol V DC input voltage input voltage UP V TX/RX DC output pin voltage O I Output current O V Logic input voltage (SDA, SCL, DSQIN Detector ...
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Pin configuration Figure 2. Pin configurations (top view) Table 3. Pin description Symbol Name V Supply input CC GATE External switch gate SENSE Current sense (input) V Step-up voltage UP Output port during kHz Tone ...
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Table 3. Pin description Symbol Name DSQOUT DiSEqC output EXTM External modulation GND Ground BYP Bypass capacitor pin Output port during kHz tone TX GND Ground ADDR Address setting 6/27 Function Open drain output of the ...
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Typical application circuits for each section: A and B Figure 3. Application circuit for DiSEqC 1.x and output current up to 500 mA Axial Ferrite Bead Filter Axial Ferrite Bead Filter F1 F1 suggested part number: suggested part number: ...
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Figure 4. Application circuit for bi-directional DiSEqC 2.0 and output current up to 500 suggested part number: suggested part number: suggested part number: MURATA BL01RN1-A62 MURATA BL01RN1-A62 MURATA BL01RN1-A62 Panasonic EXCELS A35 Panasonic EXCELS A35 Panasonic ...
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Application information Basically, the LNBH221 includes two circuits that are completely independent. Each circuit can be separately controlled and must have its independent external components. All the below specification must be considered equal for each section. This IC has ...
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Moreover possible to set the short circuit current protection either statically (simple current clamp) or dynamically by the PCL bit of the I²C SR; when the PCL (pulsed current limiting) bit is set to LOW, the overcurrent protection ...
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Byte format Every byte transferred to the SDA line must contain 8 bits. Each byte must be followed by an acknowledge bit. The MSB is transferred first. 5.5 Acknowledge The master (micropower) puts a resistive HIGH level on the ...
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Figure 6. Timing diagram on I²C bus Figure 7. Acknowledge on I²C bus 12/27 Doc ID 9913 Rev 6 ...
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LNBH221 software description (same for both section) 6.1 Interface protocol The interface protocol comprises start condition ( chip address byte = hex (the LSB bit determines read(=1)/write(=0) transmission sequence of ...
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Table 4. Truth table PCL TTX TEN LLC VSEL don't care. Values are typical unless otherwise specified. 6.4 Received ...
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Power-on I²C interface reset The I²C interface built in the LNBH221 is automatically reset at power on. As long as the V stays below the under voltage lockout threshold (6.7 V typ.), the interface will not CC respond to ...
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Electrical characteristics ° TTX = 0/1, LLC=VSEL=TEN=PCL=0, DSQIN=LOW mA, unless otherwise specified. See software description section for I²C access to OUT the system register. Table 6. ...
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Table 6. Electrical characteristics of each section (A and B) (continued) Symbol Parameter V Tone detector input amplitude DETIN Z Tone detector input impedance DETIN V DSQOUT pin logic LOW OL I DSQOUT pin leakage current OZ V DSQIN input ...
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Thermal design notes During normal operation, the LNBH221 device dissipates some power. At rated output current of 500 mA on each section output, the voltage drop on both linear regulators lead to a total dissipated power that is typically ...
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Typical performance characteristics (of each section °C, unless otherwise specification. J Figure 9. Output voltage vs. temperature Figure 11. Output voltage vs. temperature Figure 13. Load regulation vs. temperature Figure 10. Output voltage vs. temperature Figure ...
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Figure 15. Supply current vs. temperature Figure 17. Dynamic overload protection ON time vs. temperature Figure 19. Output current limiting vs. temperature 20/27 Figure 16. Supply current vs. temperature Figure 18. Dynamic overload protection OFF time vs. temperature Figure 20. ...
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Figure 21. Tone amplitude vs. temperature Figure 23. Tone rise time vs. temperature Figure 25. Under voltage lockout threshold vs. temperature Figure 22. Tone duty cycle vs. temperature Figure 24. Tone fall time vs. temperature Figure 26. Output backward current ...
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Figure 27. DC-DC converter efficiency vs. temperature Figure 29. 22 kHz tone waveform mA TEN = Figure 31. DSQIN tone enable transient response ...
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Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ...
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PowerSO-36 mechanical data Dim. Min 0. 0.22 c 0.23 D (1) 15.80 D1 9.40 E 13.90 E1 (1) 10. 5 15. 0. 0° ...
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Tape and reel PowerSO-36 mechanical data mm. Dim. Min. Typ 12 15.1 Bo 16.5 Ko 3.8 Po 3.9 P 23.9 W 23.7 Max. Min. 330 13.2 0.504 0.795 2.362 30.4 15.3 0.594 ...
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Revision history Table 10. Document revision history Date Revision 08-Apr-2005 4 01-Mar-2006 5 17-Apr-2009 6 26/27 Changes Maturity changed. The Figure 3 and Figure 4 updated. ® Updated statement ECOPACK . Doc ID 9913 Rev 6 ...
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