HMC5843-TR Honeywell Microelectronics & Precision Sensors, HMC5843-TR Datasheet
HMC5843-TR
Specifications of HMC5843-TR
HMC5843
Related parts for HMC5843-TR
HMC5843-TR Summary of contents
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... HMC5843 include Consumer Electronics, Auto Navigation Systems, Personal Navigation Devices, and Magnetometers. The HMC5843 utilizes Honeywell’s Anisotropic Magnetoresistive (AMR) technology that provides advantages over other magnetic sensor technologies. The sensors feature precision in-axis sensitivity and linearity, solid-state construction with very low cross-axis sensitivity designed to measure both direction and magnitude of Earth’s magnetic fields, from tens of micro-gauss to 6 gauss. Honeywell’ ...
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... HMC5843 SPECIFICATIONS ( * Tested at 25°C except stated otherwise.) Characteristics Power Supply Supply Voltage Current Draw Measurement Mode (10 Hz averaged) Dual supply (AVDD = 2.5V, DVDD = 1.8V) Measurement Mode (10 Hz averaged) Performance Field Range Mag Dynamic Range Resolution Linearity Cross-Axis Sensitivity Disturbing Field Use S/R pulse to restore sensitivity ...
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... HMC5843 Absolute Maximum Ratings Characteristics Supply Voltage AVDD Supply Voltage DVDD PIN CONFIGURATIONS (Arrow indicates direction of applied field that generates a positive output voltage after a SET pulse.) Pin Name 1 SCL 2 SDAP 3 SCLP OFFP 7 OFFN SETP 10 SETN 11 SVDD 12 DGND SETC 15 DVDD 16 VREN 17 AGND ...
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... HMC5843 SDA SDA DRDY DRDY AVDD AVDD AGND AGND VREN VREN PACKAGE OUTLINES PACKAGE DRAWING HMC5843 (20-PIN LPCC, dimensions in millimeters) D2 Pin HMC5843 – bottom view HMC5843 – bottom view HMC5843 – bottom view OFFP OFFP 7 7 OFFN OFFN SETP SETP 10 10 ...
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... The following is the recommend printed circuit board (PCB) footprint for the HMC5843. PCB Pad Definition and Traces The HMC5843 is a fine pitch LCC package with a 0.50mm pin pitch (spacing), with the pin pads defined as 0.40mm by 0.25mm in size. PCB pads are recommended to be oversized by 0.025mm from each pad for a short dimension oversize of 0 ...
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... HMC5843 DUAL SUPPLY REFERENCE DESIGN SINGLE SUPPLY REFERENCE DESIGN 6 www.honeywell.com ...
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... HMC5843 PERFORMANCE The following graphs highlight HMC5843’s performance. Typical Measurement Period in Single-Measurement Mode www.honeywell.com 7 ...
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... BASIC DEVICE OPERATION Anisotropic Magneto-Resistive Sensors The Honeywell HMC5843 magnetoresistive sensor circuit is a trio of sensors and application specific support circuits to measure magnetic fields. With power supply applied, the sensor converts any incident magnetic field in the sensitive axis directions to a differential voltage output. The magnetoresistive sensors are made of a nickel-iron (Permalloy) thin-film and patterned as a resistive strip element ...
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... HMC5843 Power on Reset Power on reset (POR) circuit shall return the device to the power-on default state. All registers shall be returned to their default values. Circuitry shall return to it default state, such as, but not limited to: MUX channel, ADC state machine, and bias current Interface Control of this device is carried out via the I control of a master device, such as the processor ...
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... HMC5843 MODES OF OPERATION This device has several operating modes whose primary purpose is power management. This section describes these modes. Continuous-Measurement Mode During continuous-measurement mode, the device continuously makes measurements and places measured data in data output registers. Settings in the configuration register affect the data output rate (bits DO[n]), the measurement configuration (bits MS[n]), and the gain (bits GN[n]) when in continuous-measurement mode ...
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... HMC5843 REGISTERS This device is controlled and configured via a number of on-chip registers, which are described in this section. In the following descriptions, set implies a logic 1, and reset or clear implies a logic 0, unless stated otherwise. Register List The table below lists the registers and their access. All address locations are 8 bits. ...
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... HMC5843 Configuration Register A The configuration register is used to configure the device for setting the data output rate and measurement configuration. CRA0 through CRA7 indicate bit locations, with CRA denoting the bits that are in the configuration register. CRA7 denotes the first bit of the data stream. The number in parenthesis indicates the default value of that bit. ...
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... HMC5843 Configuration Register B The configuration register B for setting the device gain. CRB0 through CRB7 indicate bit locations, with CRB denoting the bits that are in the configuration register. CRB7 denotes the first bit of the data stream. The number in parenthesis indicates the default value of that bit. ...
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... HMC5843 The resolution of the HMC5843 is based on the gain selection (zero to 7) and the influence of the analog power supply rail (AVDD). The following graph shows the interaction 2.4 Mode Register The mode register is an 8-bit register from which data can be read or to which data can be written. This register is used to select the operating mode of the device ...
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... HMC5843 MD1 MD0 Data Output X Registers A and B The data output X registers are two 8-bit registers, data output register A and data output register B. These registers store the measurement result from channel X. Data output X register A contains the MSB from the measurement result, and data output X register B contains the LSB from the measurement result. The value stored in these two registers is a 16-bit value in 2’ ...
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... HMC5843 DYRA7 DYRA6 (0) (0) DYRB7 DYRB6 (0) (0) Data Output Z Registers A and B The data output Z registers are two 8-bit registers, data output register A and data output register B. These registers store the measurement result from channel Z. Data output Z register A contains the MSB from the measurement result, and data output Z register B contains the LSB from the measurement result. The value stored in these two registers is a 16-bit value in 2’ ...
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... HMC5843 Location SR7 to SR3 SR2 SR1 SR0 Identification Register A The identification register A is used to identify the device. IRA0 through IRA7 indicate bit locations, with IRA denoting the bits that are in the identification register A. IRA7 denotes the first bit of the data stream. The number in parenthesis indicates the default value of that bit ...
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... OPERATIONAL EXAMPLES The HMC5843 has a fairly quick stabilization time from no voltage to stable and ready for data retrieval. The nominal 8.3 milli-seconds with the factory default single measurement mode means that the six Bytes of magnetic data registers (DXRA, DXRB, DYRA, DYRB, DZRA, and DZRB) are filled with a valid first measurement ...
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... SELF TEST OPERATION To check the HMC5843 for proper operation, a self test feature in incorporated in which the sensor offset straps are excited to create a nominal field strength (bias field measured. To implement this self test, the least significant bits (MS1 and MS0) of configuration register A are changed from ...
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... HMC5843 ORDERING INFORMATION Ordering Number HMC5843 3-Axis Digital Compass IC HMC5843-TR Tape and Reel 2.5k pieces/reel HMC5843-demo Demonstration Kit HMC5843-eval Evaluation Board FIND OUT MORE For more information on Honeywell’s Magnetic Sensors visit us online at www.honeywell.com/magneticsensors or contact us at 800-323-8295 (763-954-2474 internationally). The application circuits herein constitute typical usage and interface of Honeywell product. Honeywell does not warranty or assume liability of customer- designed circuits derived from this description or depiction ...