temperature sensors. Si7060 Datasheet

Si7060 sensors. Datasheet pdf. Equivalent

Part Si7060
Description I2C temperature sensors
Feature Si7060 Data Sheet The Si7060 family of I2C temperature sensors features high conversion speed (143 .
Manufacture Silicon Laboratories
Datasheet
Download Si7060 Datasheet



Si7060
Si7060 Data Sheet
The Si7060 family of I2C temperature sensors features high conversion speed (143 μsec
typical), programmable over or under temperature interrupt, and interrupt polarity with
200 msec (typical) sampling time.
The output works as a comparator, that is, the output pin will go high or low with each
new temperature sample. The output is setup to be open drain to support wire-OR with
multiple sensors or components.
The Si7060 powers up with a nominal temperature threshold of 79.8°C and reset thresh-
old of 75°C, but these values are programmable.
The operation of the Si7060 is similar to industry standard parts, but offers lower power
and in many cases higher accuracy. It is also capable of operating in autonomous sam-
pling mode.
Applications:
• HVAC/R
• Thermostats
• White Goods
• Computer Equipment
• Asset Tracking
• Battery Protection
• Industrial Controls
FEATURES
• Better than ± 1 °C accuracy
• Better than ± 0.1 °C repeatability
• Wide operating voltage: 1.7 to 5.5 V
• Low power consumption: 500 nA
• Ultra-low power sleep mode: 50 nA
• I2C interface
• Configurable alert output
4 factory configurable I2C addresses
• Package Options:
• SOT23-5
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This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Preliminary Rev. 0.1



Si7060
Si7060 Data Sheet
Functional Description
1. Functional Description
The Si7060 family of I2C temperature sensors measure and digitize the local temperature at the device. 4 modes of operation are pos-
sible:
Sleep Mode:
This ultra-low power mode of operation is useful when temperature measurements are made infrequently and the lowest possible pow-
er is desired. In this mode, the part will remain in sleep mode until it receives a command over I2C to wake up and make a measure-
ment. After this measurement, the part will go back to sleep.
The sleep bit is the ‘master’ bit. Once this bit is set, the sensor enters its sleep mode regardless of the other register configurations.
Once the part is woken up by I2C, all registers are loaded to their default value, except for 0xC6 and 0xC7, which can be saved by the
usestore bit.
How to Configure:
sleep = 1
stop = X
sltimeena = X
Autonomous Sampling Mode:
In this mode of operation, the device will make measurements at a factory set rate of 5 Hz (every 200 ms). By default the part enters
the Autonomous Sampling Mode upon powerup. The sensor wakes up, performs a temperature conversion, updates the output accord-
ingly, and then goes back to sleep.
How to Configure:
sleep = 0
stop = 0
sltimeena = 1 (default state after wake-up)
Active Mode:
In this mode of operation, measurements can be commanded, and the numerical value of the temperature can be read.
How to Configure:
sleep = 0
stop = 0
sltimeena = X
oneburst = 1
The stop bit will be set to 1 once the measurement is complete.
Table 1.1. Summary of Different States
Mode
Sleep
Autonomous
Sleep
1
0
Stop
x
0
Sltimeena
x
1
The output pin is designed to be an open drain output, which allows you to connect multiple devices in parallel to trigger an alert. The
output is driven low once the temperature crosses the operate point, and released once it goes below the release point. The tempera-
ture operate and release points are factory set to 80 °C and 75 °C but these values can be adjusted by setting the bit usestore to 1 and
adjusting the data in registers 0xC6 and 0xC7 as will be described later. It is possible to adjust the output pin polarity so it goes high or
low as temperature increases.
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Preliminary Rev. 0.1 | 2





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