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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9678P датащи(PDF) 184 Page - STMicroelectronics |
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L9678P датащи(HTML) 184 Page - STMicroelectronics |
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184 / 203 page  Electrical characteristics L9678P, L9678P-S 184/203 DocID029274 Rev 3 15.17.2 Squib leakage test (VRCM) All electrical characteristics are valid for the following conditions unless otherwise noted. -40 °C Ta +95 °C, VINGOOD1(max) VIN 35 V, VDD3V3(min) VDD3V3 VDD3V3(max). 14 RSQ_ACC Accuracy of digital resistance measurement After software calculation All errors included RSQ between 1.0 Ω and 10.0 Ω With High Current Source (40mA) -8 - +8 % 15 - EMI Input Low-pass filter Design Info 50 - 100 kHz Table 48. Deployment drivers diagnostics (Squib resistance) (continued) N° Symbol Parameter Condition Min Typ Max Unit Table 49. Squib leakage test (VRCM) N° Symbol Parameter Condition Min Typ Max Unit 1 VOUT_VRCM Output Voltage on SF or SR pins during Leakage test IOUT = 0 mA -10% 2.5 +10% V 2IOUT = 6.6 mA -8.7% 2.3 +8.7% V 3RLKG_GSQ_TH Detection threshold, leakage to GND Leakage detected if RLKG_GSQ 1 kΩ and not detected if RLKG_GSQ 10 kΩ Design Info 1- 10 kΩ 4ILKG_GSQ_TH Equivalent to resistance range -15% 450 +15% µA 5RLKG_BSQ_TH Detection threshold, leakage to BATTERY Leakage detected if LKG_BSQ 1 kΩ and not detected if RLKG_BSQ 10 kΩ Design Info 1- 10 kΩ 6ILKG_BSQ_TH Equivalent to resistance range -15% 1.8 +15% mA 7ILIM_VRCM_SRC VRCM current limitation - -20 - -10 mA 8ILIM_VRCM_SINK -10 - 20 mA 9VSHIFT External ground or battery shift Design Info -1 - 1 V 10 RSQ_LOW_TH Detection Threshold for “resistance too low” Design Info 200 - 500 Ω 11 IRSQ_LOW_TH Equivalent to resistance range -12% 6 +12% mA 12 RSQ_HIGH_TH Detection threshold for “resistance too high” Design Info 2 - 5 kΩ 13 IRSQ_HIGH_TH Equivalent to resistance range -15% 700 +15% µA 14 TFLT_LKG Leakage test deglitch filter time -8 µs |
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