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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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FS6500 датащи(PDF) 65 Page - NXP Semiconductors |
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FS6500 датащи(HTML) 65 Page - NXP Semiconductors |
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65 / 153 page  NXP Semiconductors FS6500-FS4500-ASILD Safety power system basis chip with CAN FD and LIN transceivers aaa-037777 SW1/2 FB1 VCCA_E VCCA_B VCCA 5.0 V COMP1 VCORE_SNS L3 - 2.2 µH C6 100 nF R3 R4 C10 R1 R2 C11 C7 40 µF PGND PGND GND GND BOOT_CORE Vcore BUCK - 1.5 A VCCA - LDO1 100/300 mA VAUX - LDO2 400 mA VAUX_E VAUX_B VAUX 5.0 V C9 4.7 µF C8 4.7 µF GND PNP2 MCU VDD_LV_1.2V V_ADC_5V D4 EXT SENSOR ADC_IN GND Int 3.3/ 5.0 V ref ECU limit ±15 mV V_Peripherals AND I/O input ref FS6500 VCORE Figure 48. Example of VAUX used in tracker mode 12.7.5.1 Current limitation A current limitation is implemented to avoid uncontrolled power dissipation of the external PNP transistor. The current is limited to IAUX_LIM and the regulator is switch off after a dedicated duration tAUX_LIM_OFF under current limitation. A SPI command is needed to restart the regulator. A current limitation foldback scheme is implemented to reduce the current limitation to IAUX_LIM_FB when VAUX is below VAUX_LIM_FB, limiting the power dissipation in the external PNP transistor during a short-circuit to GND of the VAUX pin. VAUX 3.3 V or 5.0 V VAUX_LIM_FB IAUX_LIM_FB IAUX_LIM IAUX VAUX aaa-037778 Figure 49. VAUX current limitation scheme with foldback mechanism FS6500-FS4500-ASILD All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved. Product data sheet Rev. 8 — 5 August 2024 Document feedback 65 / 153 |
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