PCA9550D datasheet(13/26 Pages) NXP

13 / 26 page

PCA9550_5

Product data sheet

Rev. 05 — 13 October 2008

13 of 26

NXP Semiconductors

PCA9550

2-bit I2C-bus LED driver with programmable blink rates

10. Static characteristics

[1]

Typical limits at VDD = 3.3 V, Tamb =25 °C.

[2]

VDD must be lowered to 0.2 V in order to reset part.

[3]

Each I/O must be externally limited to a maximum of 25 mA and the device must be limited to a maximum current of 50 mA.

Table 13.

Static characteristics

VDD = 2.3 V to 5.5 V; VSS =0V; Tamb = −40 °C to +85 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

Supplies

VDD

supply voltage

2.3

5.5

IDD

supply current

operating mode; VDD = 5.5 V; no load;

VI =VDD or VSS; fSCL = 100 kHz

350

500

µA

Istb

standby current

Standby mode; VDD = 5.5 V; no load;

VI =VDD or VSS; fSCL = 0 kHz

1.9

3.0

µA

VPOR

power-on reset voltage

no load; VI =VDD or VSS

[2] 1.4

1.7

2.2

Input SCL; input/output SDA

VIL

LOW-level input voltage

−0.5

+0.3VDD

VIH

HIGH-level input voltage

0.7VDD

5.5

IOL

LOW-level output current

VOL = 0.4 V

6.5

leakage current

VI =VDD =VSS

−1-

µA

input capacitance

VI =VSS

3.7

I/Os

VIL

LOW-level input voltage

−0.5

+0.8

VIH

HIGH-level input voltage

2.0

5.5

IOL

LOW-level output current

VOL = 0.4 V

VDD = 2.3 V

[3] 69

VDD = 3.0 V

[3] 811

VDD = 5.0 V

[3] 10

VOL = 0.7 V

VDD = 2.3 V

[3] 11

VDD = 3.0 V

[3] 14

VDD = 5.0 V

[3] 17

ILI

input leakage current

VDD = 3.6 V; VI = 0 V or VDD

−1-

µA

Cio

input/output capacitance

2.1

Select inputs A0; RESET

VIL

LOW-level input voltage

−0.5

+0.8

VIH

HIGH-level input voltage

2.0

5.5

ILI

input leakage current

−1-

µA

input capacitance

VI =VSS

2.3

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