pca8885 NXP Semiconductors, pca8885 Datasheet - Page 26

• Manufacturer Part Number: pca8885
• Description: Capacitive 8-channel Proximity Switch With Auto-calibration And Very Low Power Consumption
• Manufacturer: NXP Semiconductors

NXP Semiconductors
16. Static characteristics
Table 13.
V
[1]
[3]
[4]
PCA8885
[2]
Symbol
V
V
V
V
I
I
Digital inputs (CLK_IN, A0, INT_IN, TEST)
V
V
Digital outputs (INT, CLK_OUT)
V
V
Analog pins (IN0 to IN7 and CPC0 to CPC7)
V
C
I
V
V
I
I
C
External components
C
I
C
Objective data sheet
DD
DD(sleep)
2
OL
L
L(CPC)
DD
DD
DD(ext)
DD(INTREGD)
IL
IH
OL
OH
CPC
C interface pins (SDA, SCL)
IL
IH
i
i
CPC
dec
DD(INTREGD)
= 3V, V
See
Idle state is the steady state after completed power-on, without any mode change and without any activity on the sensor plates, and the
voltages on the reservoir capacitors C
In case of an ESD event, the value may increase slightly.
Larger capacitor values than C
Figure 8
SS
Static characteristics
= 0 V, T
Parameter
supply voltage
external supply voltage
internal regulated supply
voltage
internal regulated supply
voltage variation
supply current
sleep mode supply current
LOW-level input voltage
HIGH-level input voltage
LOW-level output voltage
HIGH-level output voltage
voltage on pin CPC
input capacitance
LOW-level input voltage
HIGH-level input voltage
LOW-level output current
leakage current
capacitance for each I/O pin
capacitance on pin CPC
leakage current on pin CPC
decoupling capacitance
for an illustration of the voltage regulation behavior and the related parameters.
amb
= +25 C; unless otherwise specified.
CPC(max)
CPC
can be applied for high sensitivity applications, but switching reliability can suffer.
are settled.
All information provided in this document is subject to legal disclaimers.
Conditions
V
V
regulator disabled
V
regulator voltage drop;
V
load on V
idle state; f
I
I
usable control range
sensing plate and parasitic
V
on pins V
V
Rev. 1 — 24 November 2011
O
O
DD
DD(INTREGD)
DD
DD
DD
DD
V
V
= 0.5 mA
= 0.5 mA
DD(INTREGD)
DD(INTREGD)
; ceramic chip capacitor
connected to
> V
< V
= 5.0 V; V
Capacitive 8-channel proximity switch with auto-calibration
lockin
lockin
DD(INTREGD)
DD(INTREGD)
s
; no external
= 1 kHz
; internal
OL
 3.0 V
< 3.0 V
= 0.4 V
and
[1]
[2]
[3]
[4]
Min
2.5
2.5
2.5
-
-
-
V
0.7V
V
0.8V
V
10
10
0.5
0.7V
20
-
-
22
-
-
SS
SS
SS
DD
DD
DD
Typ
-
-
2.9
10
10
100
-
-
-
-
-
-
-
-
-
-
0
-
100
-
100
Max
5.5
3.3
3.3
-
-
-
0.3V
V
0.2V
V
V
50
40
0.3V
5.5
-
-
10
470
1
-
DD
DD
DD(INTREGD)
PCA8885
DD
DD
DD
© NXP B.V. 2011. All rights reserved.
 0.3 V
26 of 43
Unit
V
V
V
mV
A
nA
V
V
V
pF
pF
V
V
mA
A
pF
nF
nA
nF