SI7013 Datasheet, PDF (4/43 Pages) Silicon Laboratories – I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

Si7013
1. Electrical Specifications
Unless otherwise specified, all min/max specifications apply over the recommended operating conditions.
Table 1. Recommended Operating Conditions
Parameter
Symbol Test Condition
Min
Typ
Power Supply
VDD
1.9
—
Operating Temperature
TA
I and Y grade
–40
—
Operating Temperature
TA
G grade
–40
—
Max
Unit
3.6
V
+125
°C
+85
°C
Table 2. General Specifications
1.9 < VDD < 3.6 V; TA = –40 to 85 °C (G grade) or –40 to 125 °C (I/Y grade); default conversion time unless otherwise noted.
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
Input Voltage High
V_IH
Input Voltage Low
VIL
AD0, SCL, SDA, VSNS pins
AD0, SCL, SDA, VSNS pins
0.7xVDD
—
—
—
V
—
0.3xVDD V
Input Voltage Range VIN SCL, SDA, RSTb pins with respect to
0.0
GND
—
VDD
V
Input Leakage
IIL
SCL, SDA pins; V_IN = GND
VSNS pin (200K nominal pull up);
Vin = GND
—
—
5xVDD
1
μA
μA
Output Voltage Low VOL SDA pin; IOL = 2.5 mA; VDD = 3.3 V
—
—
0.6
V
SDA pin; IOL = 1.2 mA;
VDD = 1.9 V
—
—
0.4
V
Output Voltage High VOH VOUT pin, I_OH = –0.5 mA, VDD = 2.0 V V_DD – 0.2
—
—
V
VOUT pin, I_OH = –10 μA
V_DD– 0.1
—
—
V
VOUT pin, I_OH = –1.7 mA, VDD = 3.0 V V_DD – 0.4
—
—
V
Current Consump-
IDD
RH conversion in progress
—
tion
Temperature conversion in progress
—
150
180
μA
90
120
μA
Standby, –40 to +85 °C²
—
0.06
0.62 μA
Standby, –40 to +125 °C²
—
0.06
3.8
μA
Peak IDD during powerup³
—
3.5
4.0
mA
Peak IDD during I²C operations⁴
—
3.5
4.0
mA
Heater Current⁵
I_HEAT
— 3.1 to 94.2 —
mA
Notes:
1. Initiating a RH measurement will also automatically initiate a temperature measurement. The total conversion time will
2.
be
No
tc_{CoOnNvVe(rRsHio)n+otrCIO2CNVt(rTan).saction}
in
progress.
Typical
values
measured
at
25
°C.
3. Occurs once during powerup. Duration is <5 msec.
4. Occurs during I²C commands for Reset, Read/Write User Registers, Read EID, Read Firmware Version, Read/Write
Thermistor Coefficients and Read Thermistor. Duration is <50 μs for all commands except Read Thermistor, which has
<150 μs duration.
5. Additional current consumption when HTRE bit enabled. See Section “5.6. Heater” for more information.
4
Rev. 0.95