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TMUX2821 Datasheet(PDF) 12 Page - Texas Instruments

Part # TMUX2821
Description  TMUX28xx ±5.5V Beyond the Supply, 1:1 2-Channel, 2:1 1-Channel, Power-Off Protection Switch, with 0.16Ω Ron, 1.2V and 1.8V Compatible Logic
PDF  33 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TMUX2821 Datasheet(HTML) 12 Page - Texas Instruments

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6 Parameter Measurement Information
6.1 On-Resistance
The on-resistance of a device is the ohmic resistance between the source (Sx) and drain (Dx) pins of the
device. The on-resistance varies with input voltage and supply voltage. The symbol RON is used to denote
on-resistance. Figure 6-1 shows the measurement setup used to measure RON. 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 6-1. On-Resistance Measurement Setup
TMUX2821, TMUX2819
SCDS488 – DECEMBER 2025
www.ti.com
12
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Product Folder Links: TMUX2821 TMUX2819



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