HP206C Datasheet, PDF (4/17 Pages) List of Unclassifed Manufacturers – PRECISION BAROMETER AND ALTIMETER SENSOR

DataSheet
HP206C
2.3 Absolute Maximum Rating
Table 4
Parameter
Symbol
Conditions
Min
Max Unit
Overpressure
P_MAX
2
bar
Supply Voltage
V_DD
-0.3
3.6
V
Interface Voltage
V_IF
-0.3
VDD+0.3 V
Storage Temperature
Range
T_STG
-50
150
℃
Maximum Soldering
Temperature
T_MS
40 second maximum
250
℃
ESD Rating
Human body model
-2
+2
kV
Latch-up Current
At 85℃
-100
100
mA
Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device under these conditions is not implied.
Exposure to maximum rating conditions for extended periods may affect device reliability.
3. Function Descriptions
3.1 General Description
The HP206C is a high precision barometer and altimeter that measures the pressure and the temperature
by an internal 24-bit ADC and compensates them by a patented algorithm. The fully-compensated values
can be read out via the I²C interface by external MCU. The uncompensated values can also be read out in
case the user wants to perform their own data compensation. The devices can also compute the value of
altitude according to the measured pressure and temperature.
Furthermore, the device allows the user to setup the temperature, pressure and altitude threshold values
for various events. Once the device detects that a certain event has happened, a corresponding interrupt
will be generated and sent to the external MCU. Also, multiple useful interrupt options are available to be
used by the user.
3.2 Factory Calibration
Every device is individually factory calibrated for sensitivity and offset for both of the temperature and
pressure measurements. The trim values are stored in the on-chip 128-Byte Non-Volatile Memory (NVM).
In normal situation, further calibrations are not necessary to be done by the user.
3.3 Automatic power on initialization
Once the device detects a valid VDD is externally supplied, an internal Power-On-Reset (POR) is
generated and the device will automatically enter the power-up initialization sequence. After that the device
will enter the sleep state. Normally the entire power-up sequence consumes about 400 us.
The user can scan a DEV_RDY bit in the INT_SRC register in order to know whether the device has
finished its power-up sequence. This bit appears to 1 when the sequence is done. The device stays in the
sleep state unless it receives a proper command from the external MCU. This will help to achieve minimum
power consumptions.
3.4 Sensor Output Conversion
For each pressure measurement, the temperature is always being measured prior to pressure
measurement automatically, while the temperature measurement can be done individually. The conversion
results are stored into the embedded memories that retain their contents when the device is in the sleep
HP206C_DataSheet_EN_V2.0
www.hoperf.com
4 / 17