Three-Axis Magnetic Sensor HMC1043L The Honeywell HMC1043L is a miniature three-axis surface mount sensor array designed for low field magnetic sensing. By adding the HMC1043L with supporting signal processing, a cost effective and space-efficient three-axis magnetometer or compassing solution is enabled. This ultra-compact, low cost solution is easy to assemble for high volume OEM designs. Applications for the HMC1043L include Compassing, Navigation Systems, Magnetometry, and Current Sensing. The HMC1043L utilizes Honeywells Anisotropic Magnetoresistive (AMR) technology that provides advantages over coil based magnetic sensors. They are extremely sensitive, low field, solid-state magnetic sensors designed to measure direction and magnitude of Earths magnetic fields. Honeywells Magnetic Sensors are among the most sensitive and reliable low-field sensors in the industry. Honeywell continues to maintain product excellence and performance by introducing innovative solid-state magnetic sensor solutions. These are highly reliable, top performance products that are delivered when promised. Honeywells magnetic sensor solutions provide real solutions you can count on. FEATURES BENEFITS Low Noise and Highly Linear Supports the Creation of High Accuracy Compasses and Ferrous Anomaly Detection including Vehicle Detection Systems Low Height Magnetic Sensors (1.2mm) Narrow Dimensions and Small Size for Low Profile Vertical Sensing Applications and Mounting, No Layout Constraints Surface Mount Three-Axis Sensors Easy to Assemble & Compatible with High Speed SMT Assembly Low Voltage Operations (2.0V) Compatible for Battery Powered Applications Available in Tape & Reel Packaging High Volume OEM Assembly 4-Element Wheatstone Bridges Low Noise Passive Element Design Wide Magnetic Field Range (+/-6 Oe) Sensor Can Be Used in Strong Magnetic Field Environments Patented Offset and Set/Reset Straps Stray Magnetic Field Compensation Lead Free Package Construction RoHS Compliance 1 Preliminary Document. Subject to change. www.magneticsensors.com SPECIFICATIONS PRELIMINARY DOCUMENT. SUBJECT TO CHANGE. Characteristics Conditions Min Typ Max Units Bridge Elements (1) Supply VB referenced to VSS 1.8 3.0 10 Volts (2) Resistance Bridge current = 10mA Resistance per bridge 800 1000 1500 ohms Resistance measured VB to VSS 265 333 500 ohms (3) Operating Temperature -40 125 C (3) Storage Temperature Unbiased -55 150 C (3) Field Range Full scale (FS) total applied field -6 +6 gauss (3) Linearity Error Best fit straight line 1 gauss 0.1 %FS 3 gauss 0.4 6 gauss 1.4 (3) Hysteresis Error 3 sweeps across 3 gauss 0.06 %FS (3) Repeatability Error 3 sweeps across 3 gauss 0.1 %FS (2) Bridge Offset Offset = (OUT+) (OUT-) -1.25 0.5 +1.25 mV/V Field = 0 gauss, After Set pulse (2) Sensitivity Set/Reset Current = 0.5A per strap 0.8 1.0 1.2 mV/V/gauss (3) Noise Density 1 Hz, VB=5V 50 nV/sqrt Hz (3) Resolution 50Hz Bandwidth, VB=5V 120 gauss (3) Bandwidth Magnetic signal (lower limit = DC) 5 MHz (3) Disturbing Field Sensitivity starts to degrade. 20 gauss Use S/R pulse to restore sensitivity. (3) Sensitivity Tempco T = -40 to 125C, VB=5V -3700 -3400 -3100 ppm/C A (3) Bridge Offset Tempco T = -40 to 125C, No Set/Reset, 1 gauss 700 ppm/C A T = -40 to 125C, With Set/Reset 10 A (3) Bridge Ohmic Tempco VB=5V, T = -40 to 125C 2100 2400 2700 ppm/C A (3) Cross-Axis Effect Cross field = 1 gauss, Happlied = 1 gauss 0.3 %FS X,Y,Z Sensor Sensor alignment to package edge 2.0 degrees (1) Alignment (3) X to Y orthogonality Angle between X and Y sensitive axes 87.5 degrees Set/Reset Straps (2) Resistance Measured from S/R+ to S/R- 1.5 2.5 3.3 ohms (3) Current 0.1% duty cycle, or less, 2 sec current 1.2 1.5 2 Amp pulse (3) Resistance Tempco T = -40 to 125C 3300 3700 4100 ppm/C A Offset Straps (2) Resistance Measured from OFF+ to OFF- 10 13 19 ohms (3) Offset Constant DC Current 10 mA/gauss Field applied in sensitive direction (3) Resistance Tempco T = -40 to 125C 3500 3900 4300 ppm/C A (1) By Design (2) Tested at 25C except stated otherwise. (3) Characterized 2 Preliminary Document. Subject to change. www.magneticsensors.com