HDPM01
· Integrated pressure sensor · 300-1100hpa absolute Pressure Range · ROHS compliant · 11 coefficients for software compensation stored on chip · Full integration of 2-axis magnetic sensors and electronics circuits resulting in less external components needed. · I2C Slave, FAST (=400 KHz) mode · Power up/down function available through I2C interface · 2.4V~3.6V wide power supply operation supported · SET/RESET strap drive · 512counts/gauss
Description
HDPM01 module includes a pressure module and a compass module The HDPM01 pressure module includes a piezo-resistive pressure sensor and an ADC interface. It provides 16 bit word data for pressure and temperature related voltage. With the help of a highly accurate calibration of the senor, 11 unique coefficients were stored on the chip, thus accurate pressure and temperature reading can be realized. HM03 is a low power, low voltage device with automatic power down switching. I2C Serial Interface is used for communications with a microprocessor. Sensor packaging options are SMD (with metal cap) The HDPMO1 is a dual-axis magnetic sensor, it is a complete sensing system with on-chip signal processing and integrated I2C bus, allowing the device to be connected directly to a microprocessor eliminating the need for A/D converters or timing resources. It can measure magnetic field with a full range of ±2 gausses and a sensitivity of 512counts/gauss @3.0 V at 25°C.
Features
. Supply voltage 2.2v-3.6v . -20°C to + 60°C operating range . No external components required . I2C digital output with 400 KHz, fast mode operation.
Applications
. Pressure measurement and control systems . Mobile altimeter/barometer systems . Weather forecast products . Adventure or multi-mode watches . Electronic Compass . GPS Navigation . Position Sensing . Vehicle Detection . Magnetometry
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail:
[email protected] http://www.hoperf.com
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HDPM01
1.Block Diagram
1.1 Block Diagram of the pressure module
1.2 Block Diagram of the compass module
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail:
[email protected] http://www.hoperf.com
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HDPM01
2. PIN Description
Pin Name GND VDD MCLK XCLR SDA SCL
Pin Number 6 5 4 3 2 1
Type G P I I I/O I
Function power ground power VCC master clock(32k) input ADC reset input (keep low when system is in idle state) 2 . I C data input and output I2C clock input
* XCLR is to reset the AD converter (active low). XCLR should be set to high only during AD conversion phase(reading D1,D2), at all other states, such as reading calibration factors, this pin should be kept low. * The quality of the MCLK signal can significantly influence the current consumption of the pressure module. To obtain minimum current, remember to supply good quality MCLK signal
3.Absolute Maximum Ratings
Parameter Supply Voltage Over pressure Storage Temperature Maximum Exposed Field Symbol VDD P Tstg Min -0.5 -30 Max 4 15 90 10000 Unit V Bar(abs) °C gauss
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HDPM01
4. Recommended Operating Conditions
4.1 Recommended Operating Conditions of pressure Parameter Supply Voltage Supply Current during conversion Stand by Operating Pressure Range Operating Temperature Range MCLK Duty Cycle of MCLK Serial Date Rate P T T SCL HDPM01 300 -20 TBD 30 40% 25 32768 50% Symbol VDD I Conditions VDD=3V 500 2 1100 60 60 35 60% 400 Min 2.4 Typ 3 Max 3.6 Unit V V hpa (abs) °C °C KHz % KHz
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[email protected] http://www.hoperf.com
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HDPM01
4.2 Recommended Operating Conditions of compass
(Measurements @ 25°C, unless otherwise noted; VDA = VDD= 3.0V unless otherwise specified)
Note: 1: 2.4V is the minimum operation voltage, or VDA should not be lower than 2.4V. 2: Accuracy is dependent on system design, calibration and compensation algorithms used. The specification is based upon using the HOPERF evaluation board and associate software. 3: By design.
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HDPM01
5. Pressure and Temperature Output Characteristics
With the calibration data provided by the HDPM01 system, it should be able to reach the following characteristics: Parameter Resolution Relative Pressure Accuracy Absolute Pressure Accuracy Maximum Error Over Temperature Long Term Stability VDD Dependency Temperature Accuracy I2C INTERFACE I/O CHARACTERISTICS (VDD=3.0V) Symbol Conditions 750-1100 750-1100 -20~+60 12 month 2.4~3.6 Min 0.1 -2 -3 -5 -1.5 -1 2 0 Typ Max 2 3 5 1.5 1 Unit hpa hpa hpa hpa hpa hpa °C
Timing Definition
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