Honeywell HMC1041Z TR One-Axis Magnetic Sensor

• Customization: Available
• Manufacturer: Honeywell
• Condition: Original New
• Model NO.: HMC1041Z TR
• Product Category: Board Mount Hall Effect / Magnetic Sensors
• Amient Operating Temperature: -40 °C to +125 °C
• Resistance: 800-1300 Ohms
• Field Range: -6~6 gauss
• Bandwidth: MHz
• Current: 0.4~2 Amp
• Transport Package: Carton
• Trademark: Honeywell

Product Description

The Honeywell HMC1041Z is a z-axis surface mount option designed for low field magnetic sensing. By adding the HMC1041Z to other 2-axis magneto-resistive sensors, a cost effective and space-efficient 3-axis magnetometer or compassing solution is enabled. This compact, low cost solution is easy to assemble for high volume, cost effective OEM designs. Applications for the HMC1041Z include Compassing, Navigation Systems, Magnetometry, and Current Sensing.
 

The HMC1041Z utilizes Honeywell's 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 Earth's magnetic fields, from tens of micro-gauss to 6 gauss. Honeywell's Magnetic Sensors are among the most sensitive and reliable low-field sensors in the industry.

FEATURES 

• Low Height Magnetic Sensors
• Surface Mount Z-Axis Sensor
• Low Voltage Operations
• Low Cost
• Available in Tape & Reel Packaging
• Lead Free Package Construction
• Wheatstone Bridge
• Wide Magnetic Field Range
• Patented Offset and SetReset Straps

BENEFITS
• Narrow Dimensions and Small Size for Low Profile Vertical SensingApplications and Mounting, No Layout Constraints
• Easy to Assemble & Compatible with High Speed SMT Assembly
• Compatible for Battery Powered Applications
• Designed for High Volume, Cost Effective OEM Designs
• High Volume OEM Assembly
• Complies with Current Environmental Standards
• Low Noise Passive Element Design
• Sensor Can Be Used in Strong Magnetic Field Environments
• Stray Magnetic Field Compensation

 

Characteristics	Conditions*		Min	Typ	Max	Units
Bridge Elements
Supply^(3)	VBRIDGE referenced to GND		2.0	5.0	20	Volts
Resistance^(2)			800	1050	1300	ohms
Field Range^(3)	Full scale (FS) - total applied field		-6		+6	gauss
Sensitivity^(2)	Set/Reset Current = 0.5A		0.8	1.0	1.25	mV/V/gauss
Resolution^(3)				0.16 1.44		milli-gauss (RMS) milli-gauss (pk - pk)
Bridge Offset^(2)	Offset = (OUT+) - (OUT-) Field = 0 gauss after Set pulse		-2.0	±0.5	+2.0	mV/V
Bandwidth^(3)	Magnetic signal (lower limit = DC)			5		MHz
Disturbing Field^(3)	Sensitivity starts to degrade. Use S/R pulse to restore sensitivity.				20	gauss
Operating Temperature^(3)	Ambient		-40		125	°C
Storage Temperature^(3)	Ambient, unbiased		-55		125	°C
Sensitivity Tempco(3)	TA= -40 to 125°C, Vbridge=5V		-3500	-3100	-2000	ppm/°C
Bridge Offset Tempco^(3)	TA= -40 to 125°C, No Set/Reset TA= -40 to 125°C, With Set/Reset			±500 ±10		ppm/°C
Bridge Ohmic Tempco^(3)	Vbridge=5V, TA= -40 to 125°C		2100	2500	2900	ppm/°C
Cross-Axis Sensitivity^(3)	Cross field = 0.5 gauss, Happlied = ±3 gauss			±0.5%		%FS/gauss
Linearity Error^(3)	Best fit straight line			0.17 0.42 0.80		%FS
	± 1 ± 3 ± 6	gauss gauss gauss
Hysteresis Error^(3)	3 sweeps across ±3 gauss			0.15		%FS
Repeatability Error^(3)	3 sweeps across ±3 gauss			0.11		%FS
Weight^(3)				9.4		milli-grams
Set/Reset Strap
Resistance^(2)	Measured from S/R+ to S/R-		3	5	6	ohms
Current^(3)	0.1% duty cycle, or less, 2μsec current pulse		0.4	0.5	2	Amp
Resistance Tempco^(3)	TA=-40 to 125°C		3000	3900	4500	ppm/°C
Offset Straps
Resistance^(2)	Measured from OFFSET+ to OFFSET-		5	8	11	ohms
Offset Constant^(3)	DC Current Field applied in sensitive direction			10		mA/gauss
Resistance Tempco^(3)	TA=-40 to 125°C		1800	2700	4500	ppm/°C

(1) By Design
(2) Tested at 25°C and 5.0Vdc except stated otherwise
(3) Characterized

Basic Device Operation

The Honeywell HMC1041Z magnetoresistive sensor is a Wheatstone bridge device to measure magnetic fields. With power supply applied to a bridge, the sensor converts any incident magnetic field in the sensitive axis direction to a differential voltage output. In addition to the bridge circuit, the sensor has two on-chip magnetically coupled straps; the offset strap and the set/reset strap. These straps are Honeywell patented features for incident field adjustment and magnetic domain alignment; and eliminate the need for external coils positioned around the sensors.

The magnetoresistive sensors are made of a nickel-iron (Permalloy) thin-film deposited on a silicon wafer and patterned as a resistive strip element. In the presence of a magnetic field, a change in the bridge resistive elements causes a corresponding change in voltage across the bridge outputs.

These resistive elements are aligned together to have a common sensitive axis (indicated by arrows on the pinout diagram) that will provide positive voltage change with magnetic fields increasing in the sensitive direction. Because the output only is in proportion to the one-dimensional axis (the principle of anisotropy) and its magnitude, additional sensor bridges placed at orthogonal directions permit accurate measurement of arbitrary field direction. The combination of sensor bridges in two and three orthogonal axis permit applications such as compassing and magnetometry.

The offset strap allows for several modes of operation when a direct current is driven through it. These modes are: 1) Subtraction (bucking) of an unwanted external magnetic field, 2) nulling of the bridge offset voltage, 3) Closed loop field cancellation, and 4) Auto-calibration of bridge gain.

The set/reset strap can be pulsed with high currents for the following benefits: 1) Enable the sensor to perform high sensitivity measurements, 2) Flip the polarity of the bridge output voltage, and 3) Periodically used to improve linearity, lower cross-axis effects, and temperature effects.

Offset Strap
The offset strap is a spiral of metallization that couples in the sensor element's sensitive axis. The straps will easily handle currents to buck or boost fields through the linear measurement range, but designers should note the extreme thermal heating on the die when doing so.

With most applications, the offset strap is not utilized and can be ignored. Designers can leave one or both strap connections (Off- and Off+) open circuited, or ground one connection node. Do not tie both strap connections together to avoid shorted turn magnetic circuits.

Set/Reset Strap
The set/reset strap is another spiral of metallization that couples to the sensor elements easy axis (perpendicular to the sensitive axis on the sensor die. With rare exception, the set/reset strap must be used to periodically condition the magnetic domains of the magneto-resistive elements for best and reliable performance.

A set pulse is defined as a positive pulse current entering the S/R+ strap connection. The successful result would be the magnetic domains aligned in a forward easy-axis direction so that the sensor bridge's polarity is a positive slope with positive fields on the sensitive axis result in positive voltages across the bridge output connections.

A reset pulse is defined as a negative pulse current entering the S/R+ strap connection. The successful result would be the magnetic domains aligned in a reverse easy-axis direction so that the sensor bridge's polarity is a negative slope with positive fields on the sensitive axis result in negative voltages across the bridge output connections.

Typically a reset pulse is sent first, followed by a set pulse a few milliseconds later. By shoving the magnetic domains in completely opposite directions, any prior magnetic disturbances are likely to be completely erased by the duet of pulses. For simpler circuits with less critical requirements for noise and accuracy, a single polarity pulse circuit may be employed (all sets or all resets). With these uni-polar pulses, several pulses together become close in performance to a set/reset pulse circuit. Figure 1 shows a quick and dirty manual pulse circuit for uni-polar application of pulses to the set/reset strap.

  

 

 

 

BNSENS (Nanjing) Sensor Technology Co., Ltd. is located in Nanjing, China. It is a high-tech enterprise specializing in the development, manufacturing and trade of sensor products. The company has brought together a group of outstanding technical experts in various fields such as automation, electronics, machinery and computers. All employees of the company have college degrees or above. It adopts the world-class management and operation model and 6 sigma quality system. At present, the company's main products are pressure, liquid level, flow, current, switches, etc. The company's users are all over the country, and some products have been exported to Japan, South Korea and Southeast Asia.

Since its inception, the company has been based on the technical accumulation and management standards of American sensor giants. It is composed of senior engineers and managers who have served in multinational companies for many years, and has rapidly developed various pressure sensors, transmitters, liquid level, flow meters, pressure switches, digital meters, current sensors, proximity switches and other products. After years of unremitting efforts, it has become one of the leading suppliers in the domestic automation industry. Our pressure transmitters can achieve an accuracy of more than 3/10, 000. The products have been widely used in oil, natural gas, electricity, chemical industry, metallurgy, building materials, food, light industry, environmental protection, aerospace, tap water, municipal and other industries.

It is a sensor science and technology innovation company that masters the core technology of MEMS chips. The company has a research and development center in Minnesota, USA. The leader is Dr. Pan Hanjin, a famous scientist in the sensor industry. Dr. Pan Hanjin has been deeply involved in the sensor industry for more than 20 years and is an expert in the sensor industry.

The company has a number of ASIC chips independently developed, which are widely used in industrial, automotive, home appliance and other markets.

BNSENS (Nanjing) Sensing Technology Co., Ltd. is a strategic partner of Honeywell in China. The two parties proposed a plan of East serving East and jointly developed several sensors specifically for the Chinese market. These sensors will be widely used in intelligent manufacturing, Internet of Things, artificial intelligence, and smart home fields. These sensors include: Magnetic sensors, temperature sensors, humidity sensors, force sensors, fire water pressure sensors, equipment vibration sensors, human body status monitoring sensors, motion sensors, etc.

History of BNSENS Company:

BNSENS is a company focusing on sensors, instruments, and electronic components. We are a young company, founded in 1999, just 25 years old, and we are still growing.

1999: The company's first pressure sensor was launched, mainly for the petroleum and petrochemical industries.

2002: The company expanded its product line and launched temperature sensors

2005: Started producing high-precision pressure sensors for the test and measurement market

2006: Became an official authorized agent of Honeywell

2009: Introduced the Six Sigma management system, and the product qualification rate was greatly improved

2010: Became a supplier of Emerson

2011: We started selling SICK sensors

2014: Introduced the sensor production line from Germany, developed more industrial control sensors, and cooperated with TSMC

2015: Cooperated with Siemens in Vietnam

2017: The factory moved to Nanjing High-tech Zone

2019: Became a national high-tech enterprise in China

2023: We started selling products from Infineon and Rohm

BNSENS, The Future Starts Here.