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AMC3301 数据表(PDF) 3 Page - Texas Instruments |
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AMC3301 数据表(HTML) 3 Page - Texas Instruments |
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3 / 38 page  4 Pin Configuration and Functions 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Not to scale DCDC_IN DCDC_GND LDO_OUT VDD OUTP OUTN GND DIAG DCDC_OUT DCDC_HGND HLDO_IN HLDO_OUT HGND INP INN NC Figure 4-1. DWE Package, 16-Pin SOIC, Top View Table 4-1. Pin Functions PIN TYPE DESCRIPTION NO. NAME 1 DCDC_OUT Power High-side output of the isolated DC/DC converter; connect this pin to the HLDO_IN pin.(1) 2 DCDC_HGND High-side power ground High-side ground reference for the isolated DC/DC converter; connect this pin to the HGND pin. 3 HLDO_IN Power Input of the high-side LDO; connect this pin to the DCDC_OUT pin.(1) 4 NC — No internal connection; connect this pin to HGND or leave this pin unconnected. 5 HLDO_OUT Power Output of the high-side LDO.(1) 6 INP Analog input Noninverting analog input. Either INP or INN must have a DC current path to HGND to define the common-mode input voltage.(2) 7 INN Analog input Inverting analog input. Either INP or INN must have a DC current path to HGND to define the common-mode input voltage.(2) 8 HGND High-side signal ground High-side analog ground; connect this pin to the DCDC_HGND pin. 9 GND Low-side signal ground Low-side analog ground; connect this pin to the DCDC_GND pin. 10 OUTN Analog output Inverting analog output. 11 OUTP Analog output Noninverting analog output. 12 VDD Low-side power Low-side power supply.(1) 13 LDO_OUT Power Output of the low-side LDO; connect this pin to the DCDC_IN pin. The output of the LDO must not be loaded by external circuitry.(1) 14 DIAG Digital output Active-low, open-drain status indicator output; connect this pin to the pullup supply (for example, VDD) using a resistor or leave this pin floating if not used. 15 DCDC_GND Low-side power ground Low-side ground reference for the isolated DC/DC converter; connect this pin to the GND pin. 16 DCDC_IN Power Low-side input of the isolated DC/DC converter; connect this pin to the LDO_OUT pin.(1) (1) See the Power Supply Recommendations section for power-supply decoupling recommendations. (2) See the Layout section for details. www.ti.com AMC3301 SBAS917C – AUGUST 2019 – REVISED MAY 2025 Copyright © 2025 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: AMC3301 |
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