DA1641.004

1 February, 2019

3 (14)

ABSOLUTE MAXIMUM RATINGS

All voltages with respect to ground.

Parameter

Symbol

Conditions

Min

Max

Unit

Supply Voltage

VIN

Charge pump OFF

Charge pump ON

5.5

4.5

V

Output and Flying

Capacitor Pin

Voltages

VOUT, CP1,

CP2, VOS, VOB

-0.3

15

V

CN2

-0.3

13

V

CN1

-0.3

VIN + 0.3

V

Input Pin Voltages

FEED

-20

30

V

DSEL

-0.3

VIN + 0.3

V

Storage Temperature

-55

+150

°C

Operating Junction

Temperature

-40

+125

°C

ESD Rating

±2000

V

±500

V

Note: Stresses beyond the values listed may cause a permanent damage to the device. The device may not operate under these conditions,

but it will not be destroyed.

Note 1: JEDEC document JEP155 states that 500V HBM allows safe manufacturing with a standard ESD control process.

Note 2: JEDEC document JEP157 states that 250V CDM allows safe manufacturing with a standard ESD control process.

RECOMMENDED OPERATING CONDITIONS

All voltages with respect to ground.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Operating Ambient

Temperature

0

+27

+70

°C

Operating Supply

Voltage

2.25

3.0

3.6

V

Measurement

Oscillator Frequency

resistors

50

100

150

kHz

Piezo Resonance

Frequency

2

3.4

5

kHz

Percentage Change of

Sensed Capacitance

5

10

100

%

ELECTRICAL CHARACTERISTICS

unless otherwise specified

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Output Voltage

VOUT

VIN = 3.0 V

7.2

9

V

Average Current

Consumption

Normal mode (no alarm)

36

60

µA

Alarm state and piezo driving

0.45

mA

Peak Current

Consumption

Alarm state, no load

3.9

mA

Alarm state and piezo driving

6.8

mA

Internal System Clock

Frequency

RCLK=2M

Ω

8

10

13.3

Hz

Charge Pump

Switching Frequency

0.6

1

1.8

MHz

Undervoltage-lockout

Threshold Levels

Turn on level at VDD rising

Turn off level at VDD falling

2.1

2.0

V

DSEL Control Input

Threshold

VIH

High-level input voltage

80

100

%VIN

VIL

Low-level input voltage

0

20

%VIN