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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC4292 датащи(PDF) 7 Page - Analog Devices |
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LTC4292 датащи(HTML) 7 Page - Analog Devices |
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7 / 34 page  Data Sheet LTC9101-2A/LTC9102 ELECTRICAL CHARACTERISTICS analog.com Rev. 0 | 7 of 34 Table 4. Electrical Characteristics (Continued) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Current Sense VLIM Active Current Limit OUTn – VEE < 10V Class 1 to Class 3 * 40 42.5 45 mV Class 4 * 80 85 90 mV VINRUSH Active Current Limit, Inrush OUTn – VEE < 30V (Note 16) * 40 42.5 45 mV VHOLD DC Disconnect Sense Voltage SENSEn – VSSKn, Class 0 to 4 * 500 700 900 µV VSC Short-Circuit Sense SENSEn – VSSKn – VLIM 60 mV Port Current Readback (See Typical Performance Characteristics, Note 17) Full-Scale Range (Notes 7, 15) 204.6 mV LSB Weight |SENSEn – VSSKn|, VSSKn = VEE (Note 15) 24.98 µV/LSB Conversion Period 1.967 ms VEE Readback (See Typical Performance Characteristics, Note 17) Full-Scale Range (Note 7) 82 V LSB Weight |AGND – VEE| 10.01 mV/LSB Conversion Period 1.967 ms Digital Interface VILD Digital Input Low Voltage ADn, RESET, OSS, CFGn (Note 6) * 0.8 V I2C Input Low Voltage SCL, SDAIN (Note 6) * 1 V VIHD Digital Input High Voltage * 2.2 V Digital Output Low Voltage ISDAOUT = 3mA, IINT = 3mA * 0.4 V ISDAOUT = 5mA, IINT = 5mA * 0.7 V Internal Pull-Up to VDD ADn, RESET, OSS 50 kΩ Internal Pull-Down to DGND CFG0 50 kΩ EXT3 Pull-Down to VEE 50 kΩ IDn Internal Pull-Up to CAP4 IDn = 0V 5 µA PSE Timing Characteristics (Note 7) tDET Detection Time Beginning to End of Detection * 380 500 ms tCEV Class Event Duration * 6 15 20 ms tCEVON Class Event Turn On Duration CPORT = 0.6µF * 0.1 ms tCLASS Class Event ICLASS Measurement Timing * 6 ms tME1 Mark Event Duration (Except Last Mark Event) (Note 11) * 6 9.6 12 ms tME2 Last Mark Event Duration (Note 11) * 6 20 ms tPON Power On Delay From End of Valid Detect to End of Valid Inrush (Note 14) * 400 ms tED Fault Delay From Power On Fault to Next Detect * 1.0 1.3 1.8 s tSTART Maximum Current Limit Duration During Inrush tSTART = 0x0 * 50 60 75 ms tCUT Maximum Current Overload Duration tCUT = 0x0 * 50 60 75 ms tLIM Maximum Current Limit Duration After Inrush (Note 12) Type 1, tLIM = 0x0 50 60 75 ms Spare, tLIM = 0x1 12 17 18 ms Type 2, tLIM = 0x2 10 13 14 ms Spare, tLIM = 0x3 6 11 12 ms tMPS Maintain Power Signature (MPS) Pulse Width Sensitivity Current Pulse Width to Reset Disconnect Timer (Note 8) * 6 ms tDIS Maintain Power Signature (MPS) Dropout Time tDIS = 0x0 (Note 5) * 320 370 400 ms tOSS-OFF Shutdown Priority Delay * 6.5 10 µs tr_OSS OSS Rise Time * 1 300 ns tf_OSS OSS Fall Time * 1 300 ns |
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