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QMC5883L Datasheet 1.0
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更新于2023-03-16
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QMC5883L用于替代HMC5883L,是一款表面贴装的集成了信号处理电路的三轴磁性传感器,应用场景主要包括罗盘、导航、无人机、机器人和手持设备等一些高精度的场合
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3-Axis Magnetic Sensor
QMC5883L
The QMC5883L is a multi-chip three-axis magnetic sensor. This
surface -mount, small sized chip has integrated magnetic sensors with
signal condition ASIC, targeted for high precision applications such as
compassing, navigation and gaming in drone, robot, mobile and
personal hand-held devices.
The QMC5883L is based on our state-of-the-art, high resolution,
magneto-resistive technology licensed from Honeywell AMR technology.
Along with custom-designed 16-bit ADC ASIC, it offers the advantages of
low noise, high accuracy, low power consumption, offset cancellation and
temperature compensation. QMC5883L enables 1° to 2° compass
heading accuracy. The I²C serial bus allows for easy interface.
The QMC5883L is in a 3x3x0.9mm
3
surface mount 16-pin land grid
array (LGA) package.
FEATURES BENEFIT
3-Axis Magneto-Resistive Sensors in a 3x3x0.9 mm
3
Land Grid Array Package (LGA), guaranteed
to operate over an extended temperature range of
-40 °C to +85 °C.
Small Size for Highly Integrated Products. Signals Have
Been Digitized And Calibrated.
16 Bit ADC With Low Noise AMR Sensors Achieves
2 Milli-Gauss Field Resolution
Enables 1° To 2° Degree Compass Heading Accuracy ,
Allows for Navigation and LBS Applications
Wide Magnetic Field Range (±8 Gauss)
Maximizes Sensor’s Full Dynamic Range and Resolution
Temperature Compensated Data Output and
Temperature Output
Automatically Maintains Sensor’s Sensitivity Under Wide
Operating Temperature Range
I
2
C Interface with Standard and Fast Modes.
High-Speed Interfaces for Fast Data Communications.
Maximum 200Hz Data Output Rate
Wide Range Operation Voltage (2.16V To 3.6V) and
Low Power Consumption (75A)
Compatible with Battery Powered Applications
Lead Free Package Construction
RoHS Compliance
Software And Algorithm Support Available
Compassing Heading, Hard Iron, Soft Iron, and Auto
Calibration Libraries Available
QMC5883L
2 QST Corporation
1 INTERNAL SCHEMATIC DIAGRAM
1.1 Internal Schematic Diagram
Figure 1. Block Diagram
Table 1. Block Function
Block
Function
AMR Bridge
3 axis magnetic sensor
MUX
Multiplexer for sensor channels
PGA
Programmable gain amplifier for sensor signals
ADC
16 bit Analog-to-Digital converter
Signal Conditioning
Digital blocks for magnetic signal calibration and compensation
I
2
C
Interface logic data I/O
NVM
Non-Volatile memory for calibrated parameters
SET/RST Driver
Internal driver to initialize magnetic sensor
Reference
Voltage/Current reference for internal biasing
Clock Gen.
Internal oscillator for internal operation
POR
Power on reset
Temperature Sensor
Temperature sensor for internal sensitivity /offset compensation, and
temperature output
QST Corporation 3
2 SPECIFICATIONS AND I/O CHARACTERISTICS
2.1 Product Specifications
Table 2. Specifications (* Tested and specified at 25°C except stated otherwise.)
Parameter
Conditions
Min
Typ
Max
Unit
Supply Voltage
VDD
2.16
3.6
V
I/O Voltage
VDDIO
1.65
3.6
V
Standby Current
Total Current on VDD and
VDDIO
3
μA
Continuous Mode
Current
Low/Hig
h Power
Mode
(OSR=6
4 or 512)
ODR = 10Hz
75/100
μA
ODR = 50Hz
150/250
μA
ODR = 100Hz
250/450
μA
ODR = 200Hz
450/850
μA
Peak Current in
Active State
Peak Current on VDD and
VDDIO During
Measurement
2.6
mA
Sensor Field
Range
Full Scale
-8
+8
Gauss
Dynamic Output
Field Range
Programmable with 2
options
±2
±8
Gauss
Sensitivity
[1]
Field Range = ±2G
12000
LSB/G
Field Range = ±8G
3000
LSB/G
Linearity
(Best fit linear
curve)
Field Range = ±2G
0.1
%FS
Hysteresis
All Ranges
0.3
%FS
Cross Axis
Sensitivity
Cross field = 1 Gauss,
Happlied = ±2 Gauss
0.1
%/G
Offset
±10
mG
Sensitivity
Tempco
Ta = -40℃~85℃
±0.05
%/℃
Temperature
Sensor Sensitivity
Ta = -40℃~85℃
100
LSB/℃
Digital Resolution
Change with Gain
0.1
1.0
mGauss
Field Resolution
Standard deviation 100
Data, FS ±2G
2
mGauss
Output Data Rate
Programmable.
10Hz/50Hz/100Hz/200Hz
10
200
Samples
/sec
X-Y-Z
Orthogonality
Sensitivity Directions
90±1
degree
Operating
Temperature
-40
85
℃
ESD
HB Model
2000
V
Charge Device Model
750
Note [1]: Sensitivity is calibrated at zero field, it is slightly decreased at high fields.
QMC5883L
4 QST Corporation
2.2 Absolute Maximum Ratings
Table 3. Absolute Maximum Ratings (Tested at 25°C except stated otherwise.)
Parameter
MIN.
MAX.
Units
VDDIO
-0.3
5.4
V
VDD
-0.3
5.4
V
Storage Temperature
-40
125
℃
Exposed to Magnetic Field (all directions)
50000
Gauss
Reflow Classification
MSL 3, 260 C Peak Temperature
2.3 I/O Characteristics
Table 4. I/O Characteristics
Parameter
Symbol
Pin
Condition
Min.
TYP.
Max.
Unit
Voltage Input
High Level 1
V
IH
1
SDA, SCL
0.7*VD
DIO
VDDIO+
0.3
V
Voltage Input
Low Level 1
V
IL
1
SDA, SCL
-0.3
0.3*VD
DIO
V
Voltage Output
High Level
V
OH
INT
Output Current
≥-100uA
0.8*VD
DIO
V
Voltage Output
Low Level
V
OL
INT, SDA
Output Current
≤100uA(INT)
Output Current
≤1mA (SDA)
0.2*VD
DIO
V
3 PACKAGE PIN CONFIGURATIONS
3.1 Package 3-D View
Arrow indicates direction of magnetic field that generates a positive output reading in normal measurement
configuration.
Figure 2. Package 3-D View
<QMC5883L>
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