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PCA9538PW,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34
PCA9538 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2017. All rights reserved.
Product data sheet Rev. 8 — 8 November 2017 13 of 34
NXP Semiconductors
PCA9538
8-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
7.1 Minimizing I
DD
when the I/Os are used to control LEDs
When the I/Os are used to control LEDs, they are normally connected to V
DD
through a
resistor as shown in Figure 11
. Since the LED acts as a diode, when the LED is off the
I/O V
I
is about 1.2 V less than V
DD
. The supply current, I
DD
, increases as V
I
becomes
lower than V
DD
.
Designs needing to minimize current consumption, such as battery power applications,
should consider maintaining the I/O pins greater than or equal to V
DD
when the LED is off.
Figure 12
shows a high value resistor in parallel with the LED. Figure 13 shows V
DD
less
than the LED supply voltage by at least 1.2 V. Both of these methods maintain the I/O V
I
at or above V
DD
and prevents additional supply current consumption when the LED is off.
8. Limiting values
Fig 12. High value resistor in parallel with
the LED
Fig 13. Device supplied by a lower voltage
002aac660
LED
V
DD
IOn
100 kΩ
V
DD
002aac661
LED
V
DD
IOn
3.3 V 5 V
Table 9. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
DD
supply voltage 0.5 +6.0 V
I
I
input current - 20 mA
V
I/O
voltage on an input/output pin V
SS
0.5 5.5 V
I
O(IOn)
output current on pin IOn - 50 mA
I
DD
supply current - 85 mA
I
SS
ground supply current - 100 mA
P
tot
total power dissipation - 200 mW
T
stg
storage temperature 65 +150 C
T
amb
ambient temperature operating
all devices except PCA9538PW/Q900 40 +85 C
PCA9538PW/Q900 40 +125 C
T
j(max)
maximum junction temperature - +125 C
PCA9538 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2017. All rights reserved.
Product data sheet Rev. 8 — 8 November 2017 14 of 34
NXP Semiconductors
PCA9538
8-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
9. Static characteristics
Table 10. Static characteristics for all devices except PCA9538PW/Q900
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 Max Unit
Supplies
V
DD
supply voltage 2.3 - 5.5 V
I
DD
supply current operating mode; V
DD
=5.5V;
no load; f
SCL
= 100 kHz
- 104 175 A
I
stbL
LOW-level standby current Standby mode; V
DD
=5.5V;
no load; V
I
=V
SS
;
f
SCL
= 0 kHz; I/O = inputs
-0.251A
I
stbH
HIGH-level standby current Standby mode; V
DD
=5.5V;
no load; V
I
=V
DD
;
f
SCL
= 0 kHz; I/O = inputs
-0.251A
V
POR
power-on reset voltage no load; V
I
=V
DD
or V
SS
[1]
-1.72.2V
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
-5.5V
I
OL
LOW-level output current V
OL
=0.4V 3 7 - mA
I
L
leakage current V
I
=V
DD
=V
SS
1-+1A
C
i
input capacitance V
I
=V
SS
- 5 10 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
=0.5V
V
DD
=2.3V
[2]
810- mA
V
DD
=3.0V
[2]
814- mA
V
DD
=4.5V
[2]
817- mA
V
OL
=0.7V
V
DD
=2.3V
[2]
10 13 - mA
V
DD
=3.0V
[2]
10 19 - mA
V
DD
=4.5V
[2]
10 24 - mA
V
OH
HIGH-level output voltage I
OH
= 8mA
V
DD
=2.3V
[3]
1.8 - - V
V
DD
=3.0V
[3]
2.6 - - V
V
DD
=4.5V
[3]
4.1 - - V
I
OH
= 10 mA
V
DD
=2.3V
[3]
1.7 - - V
V
DD
=3.0V
[3]
2.5 - - V
V
DD
=4.5V
[3]
4.0 - - V
I
LI
input leakage current V
I
=V
DD
=V
SS
1-+1A
C
i
input capacitance - 5 10 pF
PCA9538 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2017. All rights reserved.
Product data sheet Rev. 8 — 8 November 2017 15 of 34
NXP Semiconductors
PCA9538
8-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
[1] V
DD
must be lowered to 0.2 V in order to reset part.
[2] 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.
[3] The total current sourced by all I/Os must be limited to 85 mA.
Interrupt INT
I
OL
LOW-level output current V
OL
=0.4V 3 13 - mA
Select inputs A0, A1, RESET
V
IL
LOW-level input voltage 0.5 - +0.8 V
V
IH
HIGH-level input voltage 2.0 - 5.5 V
I
LI
input leakage current 1-+1A
Table 10. Static characteristics for all devices except PCA9538PW/Q900
…continued
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 Max Unit
Table 11. Static characteristics for PCA9538PW/Q900 AEC-Q100 compliant device
V
DD
= 3.0 V to 5.5 V; V
SS
=0V; T
amb
=
40
C to +125
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Supplies
V
DD
supply voltage 3.0 - 5.5 V
I
DD
supply current operating mode; V
DD
=5.5V;
no load; f
SCL
= 100 kHz
- 104 175 A
I
stbL
LOW-level standby current Standby mode; V
DD
=5.5V;
no load; V
I
=V
SS
;
f
SCL
= 0 kHz; I/O = inputs
-0.251A
I
stbH
HIGH-level standby current Standby mode; V
DD
=5.5V;
no load; V
I
=V
DD
;
f
SCL
= 0 kHz; I/O = inputs
-0.251A
V
POR
power-on reset voltage no load; V
I
=V
DD
or V
SS
[1]
-1.72.2V
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
-5.5V
I
OL
LOW-level output current, SDA V
OL
=0.4V
V
DD
=5.5V 3 7 - mA
V
DD
= 3.0 V 2.5 - - mA
I
L
leakage current V
I
=V
DD
=V
SS
1-+1A
C
i
input capacitance V
I
=V
SS
- 5 10 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
=0.5V
V
DD
=4.5V
[2]
817- mA
V
DD
=3.0V
[2]
7.5 - - mA
V
OL
=0.7V
V
DD
=4.5V
[2]
10 24 - mA
V
DD
=3.0V
[2]
9.5 - - mA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P34

PCA9538PW,118

Mfr. #:
Buy PCA9538PW,118
Manufacturer:
NXP Semiconductors
Description:
Interface - I/O Expanders I2C/SMBUS 8BIT GPIO
Lifecycle:
New from this manufacturer.
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