TCA9543ADR.B datasheet(19/34 Pages) TI2

Part #	TCA9543ADR.B

Description	TCA9543A Low Voltage 2-Channel I2C Bus Switch With Interrupt Logic And Reset

PDF	34 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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19 / 34 page

VDPUX (V)

0.5

1.5

2.5

3.5

4.5

5.5

0.2

0.4

0.6

0.8

1.2

1.4

1.6

1.8

D009

VDPUX > 2V

VDPUX <= 2

VCC (V)

0.5

1.5

2.5

3.5

4.5

5.5

D007

25ºC (Room Temperature)

85ºC

-40ºC

Cb (pF)

100

150

200

250

300

350

400

450

D008

Standard-mode

Fast-mode

TCA9543A

www.ti.com

SCPS206B – MARCH 2014 – REVISED NOVEMBER 2019

Product Folder Links: TCA9543A

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Typical Application (continued)

9.2.3 Application Curves

Space

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Space

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Figure 17. Pass-Gate Voltage (Vpass) vs Supply Voltage

(VCC) at Three Temperature Points

Standard-mode

(fSCL= 100 kHz, tr = 1 µs)

Fast-mode

(fSCL= 400 kHz, tr= 300 ns)

Figure 18. Maximum Pull-Up Resistance (Rp(max)) vs Bus

Capacitance (Cb)

VOL = 0.2*VDPUX, IOL = 2 mA when VDPUX ≤ 2 V

VOL = 0.4 V, IOL = 3 mA when VDPUX > 2 V

Figure 19. Minimum Pull-Up Resistance (Rp(min)) vs Pull-Up Reference Voltage (VDPUX)

TCA9543ADR.B Datasheet(PDF) 19 Page - Texas Instruments

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