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LNBH29 Datasheet(PDF) 2 Page - STMicroelectronics |
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LNBH29 Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 31 page Contents LNBH29 2/31 DocID023065 Rev 3 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 DiSEqC™ data encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 LNBH29: data encoding by external DiSEqC envelope control through the DSQIN pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 LNBH29E: DISEQC data encoding by external 22 kHz signal connected to the EXTM pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4 Output current limit selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.5 Output voltage selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.6 Diagnostic and protection functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.7 Surge protection and TVS diodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.8 VMON: output voltage diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.9 PDO: overcurrent detection on output pull-down stage . . . . . . . . . . . . . . . 6 2.10 Power-on I²C interface reset and undervoltage lockout . . . . . . . . . . . . . . . 6 2.11 PNG: input voltage minimum detection . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.12 COMP: boost capacitors and inductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.13 OLF: overcurrent and short-circuit protection and diagnostic . . . . . . . . . . . 7 2.14 OTF: thermal protection and diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Typical application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 I²C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.1 Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Start and stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.3 Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.4 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.5 Transmission without acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 |
Similar Part No. - LNBH29 |
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Similar Description - LNBH29 |
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