DA1641.004
1 February, 2019
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
15
V
Output and Flying
Capacitor Pin
Voltages
VOUT, CP1,
CP2, VOS, VOB
CN2
-0.3
V
-0.3
-0.3
-20
-0.3
-55
-40
13
VIN + 0.3
30
V
V
CN1
FEED
DSEL
Input Pin Voltages
V
VIN + 0.3
+150
V
Storage Temperature
°C
°C
Operating Junction
Temperature
ESD Rating
TJ
+125
VHBM
VCDM
Human Body Model (HBM) (1)
Charged Device Model (CDM) (2)
±2000
±500
V
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
TA
0
+27
+70
°C
Operating Supply
Voltage
Measurement
Oscillator Frequency
Piezo Resonance
Frequency
VIN
2.25
50
3.0
3.6
V
FMEAS
Adjusted by RCOM and RMON
resistors
100
150
kHz
FPIEZO
2
5
3.4
10
5
kHz
%
Percentage Change of
Sensed Capacitance
ΔC/CREF
100
ELECTRICAL CHARACTERISTICS
TA = -40°C to +85°C, typical values at TA = 27°C, VIN = 3.0 V, CIN = 10 F, CF1 = CF2 = COUT = 100 nF, Cpiezo = 15 nF, FEED=3.4kHz;
unless otherwise specified
Parameter
Symbol
Conditions
VIN = 3.0 V
Normal mode (no alarm)
Alarm state and piezo driving
Cpiezo = 15 nF, f= 3.4 kHz
Alarm state, no load
Min
Typ
Max
Unit
Output Voltage
Average Current
Consumption
VOUT
IDD
7.2
9
60
V
µA
mA
36
0.45
Peak Current
Consumption
IDD_PEAK
3.9
6.8
mA
mA
Alarm state and piezo driving
Cpiezo = 15 nF, f= 3.4 kHz
Set by external RCLK resistor
RCLK=2MΩ
Internal System Clock
Frequency
Charge Pump
FCLK
FOSC
8
0.6
10
1
13.3
1.8
Hz
MHz
Switching Frequency
Undervoltage-lockout
Threshold Levels
UVLORISE
UVLOFALL
Turn on level at VDD rising
Turn off level at VDD falling
2.1
2.0
V
DSEL Control Input
Threshold
VIH
VIL
High-level input voltage
Low-level input voltage
80
0
100
20
%VIN
%VIN
3 (14)
MAS [ MICRO ANALOG SYSTEMS ]
