PCA9531_6 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 06 — 19 February 2009 14 of 27
NXP Semiconductors
PCA9531
8-bit I
2
C-bus LED dimmer
10. Static characteristics
[1] Typical limits at V
DD
= 3.3 V, T
amb
=25°C.
[2] Additional current for one LED I/O at a time where V
I
= 4.3 V.
[3] V
DD
must be lowered to 0.2 V in order to reset part.
[4] Each I/O must be externally limited to a maximum of 25 mA and the device must be limited to a maximum current of 100 mA.
Table 12. Static characteristics
V
DD
= 2.3 V to 5.5 V; V
SS
=0V; T
amb
=
−
40
°
C to +85
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ
[1]
Max Unit
Supplies
V
DD
supply voltage 2.3 - 5.5 V
I
DD
supply current operating mode; V
DD
= 5.5 V;
V
I
=V
DD
or V
SS
; f
SCL
= 100 kHz
- 350 500 µA
I
stb
standby current Standby mode; V
DD
= 5.5 V;
V
I
=V
DD
or V
SS
; f
SCL
= 0 kHz
- 1.9 5.0 µA
∆I
DD
additional quiescent supply
current
Standby mode; V
DD
= 5.5 V;
LED I/O at V
I
= 4.3 V; f
SCL
= 0 kHz
[2]
- - 200 µA
V
POR
power-on reset voltage no load; V
I
=V
DD
or V
SS
[3]
- 1.7 2.2 V
Input SCL; input/output SDA
V
IL
LOW-level input voltage −0.5 - +0.3V
DD
V
V
IH
HIGH-level input voltage 0.7V
DD
- 5.5 V
I
OL
LOW-level output current V
OL
= 0.4 V 3 6.5 - mA
I
L
leakage current V
I
=V
DD
=V
SS
−1- +1 µA
C
i
input capacitance V
I
=V
SS
- 3.7 5 pF
I/Os
V
IL
LOW-level input voltage −0.5 - +0.8 V
V
IH
HIGH-level input voltage 2.0 - 5.5 V
I
OL
LOW-level output current V
OL
= 0.4 V
V
DD
= 2.3 V
[4]
9-- mA
V
DD
= 3.0 V
[4]
12 - - mA
V
DD
= 5.0 V
[4]
15 - - mA
V
OL
= 0.7 V
V
DD
= 2.3 V
[4]
15 - - mA
V
DD
= 3.0 V
[4]
20 - - mA
V
DD
= 5.0 V
[4]
25 - - mA
I
LI
input leakage current V
DD
= 3.6 V; V
I
= 0 V or V
DD
−1- +1 µA
C
io
input/output capacitance - 2.5 5 pF
Select inputs A0, A1, A2;
RESET
V
IL
LOW-level input voltage −0.5 - +0.8 V
V
IH
HIGH-level input voltage A0; RESET 2.0 - 5.5 V
A1; A2 2.0 - V
DD
+ 0.5 V
I
LI
input leakage current −1- +1 µA
C
i
input capacitance V
I
=V
SS
- 2.3 5 pF
