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TCA9543A

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SCPS206B – MARCH 2014 – REVISED NOVEMBER 2019

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Copyright © 2014–2019, Texas Instruments Incorporated

(1)

For operation between specified voltage ranges, refer to the worst-case parameter in both applicable ranges.

(2)

All typical values are at nominal supply voltage (1.8-V, 2.5-V, 3.3-V, or 5-V VCC), TA = 25°C.

(3)

RESET = VCC (held high) when all other input voltages, VI = GND

(4)

The power-on reset circuit resets the I2C bus logic when VCC < VPORF.

6.5 Electrical Characteristics

(1)

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN TYP(2)

MAX

UNIT

VPORR

Power-on reset voltage,

VCC rising

No load: VI = VCC or GND

(3)

1.2

1.5

V

VPORF

Power-on reset voltage,

VCC falling(4)

No load: VI = VCC or GND

(3)

0.8

1

V

Vpass

Switch output voltage

VSWin = VCC,

ISWout = –100 μA

5 V

3.6

V

4.5 V to 5.5 V

2.6

4.5

3.3 V

1.9

3 V to 3.6 V

1.6

2.8

2.5 V

1.4

2.3 V to 2.7 V

1.0

1.8

1.8 V

0.8

1.65 V to 1.95 V

0.5

1.1

IOH

INT

VO = VCC

1.65 V to 5.5 V

10

μA

IOL

SDA

VOL = 0.4 V

1.65 V to 5.5 V

3

7

mA

VOL = 0.6 V

6

10

INT

VOL = 0.4 V

3

II

SCL, SDA

VI = VCC or GND

(3)

1.65 V to 5.5 V

–1

1

μA

SC1–SC0, SD1–SD0

VI = VCC or GND

(3)

1.65 V to 5.5 V

–1

1

A1, A0

VI = VCC or GND

(3)

1.65 V to 5.5 V

–1

1

INT1–INT0

VI = VCC or GND

(3)

1.65 V to 5.5 V

–1

1

RESET

VI = VCC or GND

(3)

1.65 V to 5.5 V

–1

1

ICC

Operating

mode

fSCL = 400

kHz

VI = VCC or GND

(3)

IO = 0

tr,max = 300 ns

5.5 V

50

μA

3.6 V

20

2.7 V

11

1.65 V

6

fSCL = 100

kHz

VI = VCC or GND

(3)

IO = 0

tr,max = 1 µs

5.5 V

35

3.6 V

14

2.7 V

5

1.65 V

2

Standby

mode

Low inputs

VI = GND

(3)

IO = 0

5.5 V

1.6

2

3.6 V

1.0

1.3

2.7 V

0.7

1.1

1.65 V

0.4

0.55

High inputs

VI = VCC

IO = 0

5.5 V

1.6

2

3.6 V

1.0

1.3

2.7 V

0.7

1.1

1.65 V

0.4

0.55

ΔICC

Supply-

current

change

INT1–INT0

One INT1–INT0 input at 0.6 V,

Other inputs at VCC or GND

(3)

1.65 V to 5.5 V

3

20

μA

One INT1–INT0 input at VCC – 0.6 V,

Other inputs at VCC or GND

(3)

3

20

SCL, SDA

SCL or SDA input at 0.6 V,

Other inputs at VCC or GND

(3)

2

15

SCL or SDA input at VCC – 0.6 V,

Other inputs at VCC or GND

(3)

2

15