TCA9539-Q1 datasheet(6/46 Pages) TI1

No de pièce	TCA9539-Q1

Description	Low Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output, Reset Pin, and Configuration Registers

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6

TCA9539

SCPS202C – OCTOBER 2009 – REVISED MAY 2016

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Product Folder Links: TCA9539

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(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report, SPRA953.

6.4 Thermal Information

THERMAL METRIC (1)

TCA9539

UNIT

PW (TSSOP)

RTW (WQFN)

RGE (VQFN)

24 PINS

RθJA

Junction-to-ambient thermal resistance

108.8

43.6

48.4

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

54.

46.2

58.1

°C/W

RθJB

Junction-to-board thermal resistance

62.8

22.1

27.1

°C/W

ψJT

Junction-to-top characterization parameter

11.1

1.5

3.3

°C/W

ψJB

Junction-to-board characterization parameter

62.3

22.2

27.2

°C/W

RθJC(bottom) Junction-to-case (bottom) thermal resistance

—

10.7

15.3

°C/W

(1)

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

(2)

Each I/O must be externally limited to a maximum of 25 mA, and each octal (P07–P00 and P17–P10) must be limited to a maximum

current of 100 mA, for a device total of 200 mA.

(3)

The total current sourced by all I/Os must be limited to 160 mA (80 mA for P07–P00 and 80 mA for P17–P10).

6.5 Electrical Characteristics

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

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP (1)

MAX UNIT

VIK

Input diode clamp voltage

II = –18 mA

1.65 V to 5.5 V

–1.2

V

VPOR

R

Power-on reset voltage, VCC

rising

VI = VCC or GND, IO = 0

1.65 V to 5.5 V

1.2

1.5

V

VPOR

F

Power-on reset voltage, VCC

falling

1.65 V to 5.5 V

0.75

1

VOH

P-port high-level output

voltage (2)

IOH = –8 mA

1.65 V

1.2

V

2.3 V

1.8

3 V

2.6

4.75 V

4.1

IOH = –10 mA

1.65 V

1

2.3 V

1.7

3 V

2.5

4.75 V

4

IOL

SDA

VOL = 0.4 V

1.65 V to 5.5 V

3

mA

P port (3)

VOL = 0.5 V

1.65 V to 5.5 V

8

VOL = 0.7 V

1.65 V to 5.5 V

10

INT

VOL = 0.4 V

3

II

SCL, SDA

VI = VCC or GND

1.65 V to 5.5 V

±1

μA

A0, A1, RESET

±1

IIH

P port

VI = VCC

1.65 V to 5.5 V

1

μA

IIL

P port

VI = GND

1.65 V to 5.5 V

–1

μA

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