PCA9544A

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© NXP Semiconductors N.V. 2014. All rights reserved.

Product data sheet

Rev. 5 — 23 April 2014

13 of 31

NXP Semiconductors

PCA9544A

4-channel I2C-bus multiplexer with interrupt logic

9.

Limiting values

[1]

The performance capability of a high-performance integrated circuit in conjunction with its thermal

environment can create junction temperatures which are detrimental to reliability. The maximum junction

temperature of this integrated circuit should not exceed 125

C.

10. Thermal characteristics

Table 6.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Voltages are referenced to ground (VSS = 0 V).[1]

Symbol

Parameter

Conditions

Min

Max

Unit

VDD

supply voltage

0.5

+7.0

V

VI

input voltage

0.5

+7.0

V

II

input current

-

20

mA

IO

output current

-

25

mA

IDD

supply current

-

100

mA

ISS

ground supply current

-

100

mA

Ptot

total power dissipation

-

400

mW

Tj(max)

maximum junction temperature

[1] -125

C

Tstg

storage temperature

60

+150

C

Tamb

ambient temperature

operating

40

+85

C

Table 7.

Thermal characteristics

Symbol

Parameter

Conditions

Typ

Unit

Rth(j-a)

thermal resistance from junction

to ambient

HVQFN20 package

32

C/W

SO20 package

90

C/W

TSSOP20 package

146

C/W