LNBH221_06 STMICROELECTRONICS [STMicroelectronics], LNBH221_06 Datasheet
LNBH221_06
Related parts for LNBH221_06
LNBH221_06 Summary of contents
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Feature summary I All the features are the same for both section I Complete and independent interface between 2 TM LNBS and relevant I C BUS I BUILT-IN DC/DC controller for single 12V supply operation and high efficiency (Typ. 93% ...
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Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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LD39150 1 Diagram Figure 1. Block diagram Sense Sense ADDR ADDR DSQIN DSQIN Sense Sense ADDR ADDR DSQIN DSQIN Gate Gate LNBH221- section A LNBH221- section A Step-up Step-up Step-up Controller Controller Controller Vup Vup Vcc Vcc Preregul.+ Preregul.+ Preregul.+ ...
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Maximum ratings 2 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) I ...
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LD39150 3 Pin configuration Figure 2. Pin configurations (top view) Table 3. Pin description Symbol Name V Supply Input CC GATE External Switch Gate External MOS switch Gate connection of the step-up converter. SENSE Current Sense (Input) V Step-up Voltage ...
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Pin configuration Table 3. Pin description Symbol Name DSQOUT DiSEqC Output EXTM External Modulation GND Ground BYP Bypass Capacitor pin Needed for internal pre regulator filtering. Output Port during 22KHz Tone TX GND Ground ADDR Address Setting ...
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LD39150 4 Typical application circuits for each section: A and B Figure 3. Application Circuit For Diseqc 1.x And Output Current Up To 500mA Axial Ferrite Bead Filter Axial Ferrite Bead Filter F1 F1 suggested part number: suggested part number: ...
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Typical application circuits for each section: A and B Figure 4. Application Circuit For Bi-directional Diseqc 2.0 And Output Current Up To 500mA suggested part number: suggested part number: suggested part number: MURATA BL01RN1-A62 MURATA BL01RN1-A62 MURATA ...
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LD39150 5 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 ...
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Application information Moreover possible to set the Short Circuit Current protection either statically (simple current clamp) or dynamically by the PCL bit of the I Limiting) bit is set to LOW, the overcurrent protection circuit works dynamically, as ...
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LD39150 5.4 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 (µP) puts a resistive HIGH level on ...
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Application information . Figure 6. Timing Diagram On I Figure 7. Acknowledge On I 12/ Bus 2 C Bus LNBH221 ...
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LD39150 6 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 ...
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LNBH221 software description (same for both section) 6.3 Transmitted data (I When the R/W bit in the chip address is set to 0, the main µP can write on the System Register (SR) of the LNBH221 via I by the ...
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LD39150 2 6.5 Power- The I C interface built in the LNBH221 is automatically reset at power-on. As long as the V stays below the UnderVoltage Lockout threshold (6.7V typ.), the interface will not CC 2 respond to ...
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Electrical characteristics 7 Electrical characteristics Table 4. Electrical characteristics of each section (A and 85°C, EN=1, TTX=0/1, LLC=VSEL=TEN=PCL=0, DSQIN=LOW =50mA, unless otherwise specified. See software description section for I OUT the system ...
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LD39150 Table 4. Electrical characteristics of each section (A and 85°C, EN=1, TTX=0/1, LLC=VSEL=TEN=PCL=0, DSQIN=LOW =50mA, unless otherwise specified. See software description section for I OUT the system register) Symbol Parameter V ...
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Thermal design notes 8 Thermal design notes During normal operation, the LNBH221 device dissipates some power. At rated output current of 500mA on each section output, the voltage drop on both linear regulators lead to a total dissipated power that ...
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LD39150 9 Typical performance characteristics (of each section 25°C, unless otherwise specification) J Figure 9. Output Voltage vs Temperature Figure 11. Output Voltage vs Temperature Figure 13. Load Regulation vs Temperature Typical performance characteristics (of each section) Figure ...
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Typical performance characteristics (of each section) 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 ...
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LD39150 Figure 21. Tone Amplitude vs Temperature Figure 23. Tone Rise Time vs Temperature Figure 25. Undervoltage Lockout Threshold vs Temperature Typical performance characteristics (of each section) Figure 22. Tone Duty Cycle vs Temperature Figure 24. Tone Fall Time vs ...
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Typical performance characteristics (of each section) Figure 27. DC/DC Converter Efficiency vs Temperature Figure 29. 22kHz Tone Waveform V =12V, I =50mA, EN=TEN Figure 31. DSQIN Tone Enable Transient Response V =12V, I =50mA, EN=1, Tone enabled by ...
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LD39150 10 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 ...
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Package 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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LD39150 Tape & Reel PowerSO-36 MECHANICAL DATA DIM. MIN 12 15.1 Bo 16.5 Ko 3.8 Po 3.9 P 23.9 W 23.7 mm. TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 30.4 15.3 ...
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Revision history 11 Revision history Table 8. Document revision history Date Revision 08-Apr-2005 4 23-Feb-2006 5 26/27 Maturity Changed. The Figure 3. and Figure 4. has been updated. Changes LNBH221 ...
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LD39150 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 ...