TCA9803 datasheet(6/38 Pages) TI2

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TCA9803

SCPS267B – MARCH 2017 – REVISED FEBRUARY 2020

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Electrical Characteristics (continued)

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

PARAMETER

TEST CONDITIONS

MIN TYP(1)

MAX

UNIT

ICCA + ICCB Total quiescent supply current

VCCA = VCCB = 1.8 V,

SDAA/SCLA = VCCA,

SDAB/SCLB = VCCB

µA

Input leakage current

SDAA, SCLA

VI = VCCA, EN = GND

±10

µA

VI = GND, EN = GND

±10

SDAB, SCLB

VCCB = 0 V, VI = 3.6 V

±10

CIO

I/O Capacitance

SDAA, SCLA

VI = 0 V or 3.3 V, f = 1 MHz

SDAB, SCLB

VCCB = GND, VI = 0 V, f = 1 MHz

(1)

Times are specified with loads of 1.35 k

Ω and 50 pF on A-side and 50 pF on B-side. Different load resistance and capacitance alter the

rise and fall times, thereby changing the propagation delay.

7.6 Timing Requirements

PARAMETER

MIN

TYP

MAX

UNIT

fSCL(MAX)

Max SCL clock frequency

400

kHz

(1)

Rise time

Port A

Port B; VCCB = 1.65 V

Port B; VCCB = 2.5 V

Port B; VCCB = 3.6 V

(1)

Fall time

Port A

Port B

tPHL

(1)

Propagation delay high-to-low

Port A to Port B

200

Port B to Port A

250

tPLH

(1)

Propagation delay low-to-high

Port A to Port B

Port B to Port A

120

260

7.7 Switching Characteristics

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

PARAMETER

MIN

TYP

MAX

UNIT

tstartup

Startup time

350

µs

ten

Enable time

280

1000

tdis

Disable time

700

1800

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