PCF8883

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© NXP Semiconductors N.V. 2016. All rights reserved.

Product data sheet

Rev. 4.1 — 14 September 2016

11 of 35

NXP Semiconductors

PCF8883

Capacitive touch/proximity switch with auto-calibration

11. Static characteristics

[1]

Alternatively an external discharge resistor RC can be used (see Section 14).

[2]

Tested on sample basis.

[3]

Idle state is the steady state after completed power-on without any activity on the sensor plate and the voltage on the reservoir capacitor

CCPC settled.

[4]

For reliability reasons, the average output current must be limited to 4.6 mA at 70

C and 3.0 mA at 85 C.

[5]

External ceramic chip capacitor recommended (see Figure 16).

Table 6.

Static characteristics

VDD = 5 V, Tamb = +25 C; unless otherwise specified.

Symbol

Parameter

Conditions

Min Typ Max

Unit

VDD

supply voltage

10 pF

 C

i  40 pF;

40 C  T

amb  +85 C

[1] 3.0

-

9.0

V

10 pF

 C

i  35 pF;

20 C  T

amb  +85 C

[2] 2.8

-

9.0

V

VDD(INTREGD)

internal regulated supply voltage

3.0

4.0

4.6

V

V

DD(INTREGD)

internal regulated supply voltage

variation

regulator voltage drop

-

10

50

mV

IDD

supply current

idle state; fs = 1 kHz

[3]

VDD =5.0 V

-

3

5

A

VDD =3.0 V

-

2.2

3.5

A

Isink

sink current

internal constant current to VSS

-

150 -

nA

VO

output voltage

on pin OUT; pull-up voltage

0

VDD 9.0

V

IO

output current

P-MOS

[4] 010

20

mA

short circuit protection

VO  0.6 V

20

30

50

mA

Vsat

saturation voltage

on pin OUT; IO = +10 mA

VDD = 5.0 V

0.1

0.2

0.4

V

VDD = 3.0 V

0.1

0.3

0.5

V

Cdec

decoupling capacitance

on pin VDD(INTREGD)

[5] 100 -

220

nF

VI(CPC)

input voltage on pin CPC

0.6

-

VDD(INTREGD)  0.5 V