MPR03X

Sensors

Freescale Semiconductor

25

Preliminary

A.4

DC Characteristics

This section includes information about power supply requirements and I/O pin characteristics.

1. Parameters tested 100% at final test at room temperature; limits at -40°C and +85°C verified by characterization, not tested in production

2. Limits verified by characterization, not tested in production

A.5

AC Characteristics

1. Parameters tested 100% at final test at room temperature; limits at -40°C and +70°C verified by characterization, not tested in production

2. Limits verified by characterization, not tested in production.

Table 21. DC Characteristics (Temperature Range = –40°C to 85°C Ambient)

(Typical Operating Circuit,

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Operating Supply Voltage

1.71

1.8

2.75

V

1

Average Supply Current

Run1 Mode @ 1 ms sample period

43

57.5

µA

2

Average Supply Current

Run1 Mode @ 2 ms sample period

22

32

µA

2

Average Supply Current

Run1 Mode @ 4 ms sample period

14

19.4

µA

2

Average Supply Current

Run1 Mode @ 8 ms sample period

8

13.3

µA

2

Average Supply Current

Run1 Mode @ 16 ms sample period

6

10.1

µA

2

Average Supply Current

Run1 Mode @ 32 ms sample period

58.6

µA

2

Average Supply Current

Run1 Mode @ 64 ms sample period

47.8

µA

2

Average Supply Current

Run1 Mode @ 128 ms sample

period

47.5

µA

2

Measurement Supply Current

Peak of measurement duty cycle

1.25

1.5

mA

2

Idle Supply Current

Stop Mode

1.5

4

µA

1

Electrode Charge Current

Accuracy

ELE_

Relative to nominal values programmed

in Register 0x41

-6

+6

%

1

Electrode Input Working Range

ELE_

Electrode charge current accuracy

within specification

0.7

V

1

Input Leakage Current ELE_

0.025

1

µA

1

Input Capacitance ELE_

15

pF

2

Input High Voltage SDA, SCL

V

2

Input Low Voltage SDA, SCL

V

2

Input Leakage Current

SDA, SCL

0.025

1

µA

2

Input Capacitance

SDA, SCL

7pF

2

Output Low Voltage

SDA, IRQ

0.5V

V

1

Power On Reset

1.08

1.35

1.62

V

2

0.88

1.15

1.42

V

2

Table 22. AC CHARACTERISTICS

Parameter

Symbol

Conditions

Min

Typ

Max

Units

8 MHz Internal Oscillator

7.44

8

8.56

MHz

1

32 kHz Internal Oscillator

20.8

32

43.2

kHz

1