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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMUX7208 датащи(PDF) 25 Page - Texas Instruments |
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TMUX7208 датащи(HTML) 25 Page - Texas Instruments |
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25 / 51 page  8 Parameter Measurement Information 8.1 On-Resistance The on-resistance of a device is the ohmic resistance between the source (Sx) and drain (D) pins of the device. The on-resistance varies with input voltage and supply voltage. The symbol RON is used to denote on-resistance. The measurement setup used to measure RON is shown in Figure 8-1. Voltage (V) and current (ISD) are measured using this setup, and RON is computed with RON = V / ISD: V D V S I SD Sx RON Figure 8-1. On-Resistance Measurement Setup 8.2 Off-Leakage Current There are two types of leakage currents associated with a switch during the off state: • Source off-leakage current • Drain off-leakage current Source leakage current is defined as the leakage current flowing into or out of the source pin when the switch is off. This current is denoted by the symbol IS(OFF). Drain leakage current is defined as the leakage current flowing into or out of the drain pin when the switch is off. This current is denoted by the symbol ID(OFF). The setup used to measure both off-leakage currents is shown in Figure 8-2. S1 GND VS D A Is (OFF) S2 VDD VSS IS(OFF) S1 GND D VD S2 VDD VSS ID(OFF) ID (OFF) A VS S8 S8 VD Figure 8-2. Off-Leakage Measurement Setup www.ti.com TMUX7208, TMUX7209 SCDS418B – JULY 2020 – REVISED APRIL 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 25 Product Folder Links: TMUX7208 TMUX7209 |
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