DRV5056A2QLPGM

Product Folder Order Now Support & Community Tools & Software Technical Documents DRV5056 SBAS644 – APRIL 2018 DRV5056 Unipolar Ratiometric Linear Hall Effect Sensor 1 Features 3 Description • • • The DRV5056 is a linear Hall effect sensor that responds proportionally to flux density of a magnetic south pole. The device can be used for accurate position sensing in a wide range of applications. 1 • • • • • Unipolar Linear Hall Effect Magnetic Sensor Operates From 3.3-V and 5-V Power Supplies Analog Output With 0.6-V Quiescent Offset: – Maximizes Voltage Swing for High Accuracy Magnetic Sensitivity Options (At VCC = 5 V): – A1: 200 mV/mT, 20-mT Range – A2: 100 mV/mT, 39-mT Range – A3: 50 mV/mT, 79-mT Range – A4: 25 mV/mT, 158-mT Range Fast 20-kHz Sensing Bandwidth Low-Noise Output With ±1-mA Drive Compensation For Magnet Temperature Drift Standard Industry Packages: – Surface-Mount SOT-23 – Through-Hole TO-92 2 Applications • • • • • • • • Precise Position Sensing Industrial Automation and Robotics Home Appliances Gamepads, Pedals, Keyboards, Triggers Height Leveling, Tilt and Weight Measurement Fluid Flow Rate Measurement Medical Devices Current Sensing Featuring a unipolar magnetic response, the analog output drives 0.6 V when no magnetic field is present, and increases when a south magnetic pole is applied. This response maximizes the output dynamic range in applications that sense one magnetic pole. Four sensitivity options further maximize the output swing based on the required sensing range. The device operates from 3.3-V or 5-V power supplies. Magnetic flux perpendicular to the top of the package is sensed, and the two package options provide different sensing directions. The device uses a ratiometric architecture that can minimize error from VCC tolerance when the external analog-to-digital converter (ADC) uses the same VCC for its reference. Additionally, the device features magnet temperature compensation to counteract how magnets drift for linear performance across a wide –40°C to +125°C temperature range. Device Information(1) PART NUMBER DRV5056 TO-92 (3) 4.00 mm × 3.15 mm Magnetic Response VCC OUT VCC OUT BODY SIZE (NOM) 2.92 mm × 1.30 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Schematic DRV5056 VCC PACKAGE SOT-23 (3) Controller VL (MAX) ADC GND 0.6 V 0 mT B south 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. DRV5056 SBAS644 – APRIL 2018 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 3 6.1 6.2 6.3 6.4 6.5 6.6 6.7 3 4 4 4 4 5 6 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Magnetic Characteristics........................................... Typical Characteristics .............................................. 7.4 Device Functional Modes........................................ 13 8 Application and Implementation ........................ 14 8.1 Application Information............................................ 14 8.2 Typical Application .................................................. 15 8.3 Do's and Don'ts ....................................................... 17 9 Power Supply Recommendations...................... 19 10 Layout................................................................... 19 10.1 Layout Guidelines ................................................. 19 10.2 Layout Examples................................................... 19 11 Device and Documentation Support ................. 20 11.1 11.2 11.3 11.4 11.5 11.6 Detailed Description .............................................. 9 7.1 Overview ................................................................... 9 7.2 Functional Block Diagram ......................................... 9 7.3 Feature Description................................................... 9 Documentation Support ....................................... Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 20 20 20 20 20 20 12 Mechanical, Packaging, and Orderable Information ........................................................... 20 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. 2 DATE REVISION NOTES April 2018 * Initial release. Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated Product Folder Links: DRV5056 DRV5056 www.ti.com SBAS644 – APRIL 2018 5 Pin Configuration and Functions DBZ Package 3-Pin SOT-23 Top View LPG Package 3-Pin TO-92 Top View 1 VCC 3 OUT GND 2 1 2 VCC 3 GND OUT Pin Functions PIN NAME I/O DESCRIPTION SOT-23 TO-92 GND 3 2 — Ground reference OUT 2 3 O Analog output VCC 1 1 — Power supply. TI recommends connecting this pin to a ceramic capacitor to ground with a value of at least 0.01 µF. 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT Power supply voltage VCC –0.3 7 V Output voltage OUT –0.3 VCC + 0.3 V Magnetic flux density, BMAX Unlimited T Operating junction temperature, TJ –40 150 °C Storage temperature, Tstg –65 150 °C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated Product Folder Links: DRV5056 3 DRV5056 SBAS644 – APRIL 2018 www.ti.com 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS001 (1) ±2500 Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±750 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) VCC Power supply voltage (1) IO Output continuous current TA Operating ambient temperature (2) (1) (2) MIN MAX 3 3.63 4.5 5.5 UNIT V –1 1 mA –40 125 °C There are two isolated operating VCC ranges. For more information see the Operating VCC Ranges section. Power dissipation and thermal limits must be observed. 6.4 Thermal Information DRV5056 THERMAL METRIC (1) SOT-23 (DBZ) TO-92 (LPG) 3 PINS 3 PINS UNIT RθJA Junction-to-ambient thermal resistance 170 121 °C/W RθJC(top) Junction-to-case (top) thermal resistance 66 67 °C/W RθJB Junction-to-board thermal resistance 49 97 °C/W YJT Junction-to-top characterization parameter 1.7 7.6 °C/W YJB Junction-to-board characterization parameter 48 97 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. 6.5 Electrical Characteristics for VCC = 3 V to 3.63 V and 4.5 V to 5.5 V, over operating free-air temperature range (unless otherwise noted) TEST CONDITIONS (1) PARAMETER ICC Operating supply current tON Power-on time (see Figure 17) fBW Sensing bandwidth td Propagation delay time BND Input-referred RMS noise density BN Input-referred noise VN (1) (2) 4 Output-referred noise (2) B = 0 mT, no load on OUT From change in B to change in OUT MIN TYP MAX 6 10 150 300 10 µs VCC = 3.3 V 215 BN × S µs kHz 130 VCC = 5 V mA 20 VCC = 5 V BND × 6.6 × √20 kHz UNIT 0.12 VCC = 3.3 V 0.2 DRV5056A1 24 DRV5056A2 12 DRV5056A3 6 DRV5056A4 3 nT/√Hz mTPP mVPP B is the applied magnetic flux density. VN describes voltage noise on the device output. If the full device bandwidth is not needed, noise can be reduced with an RC filter. Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated Product Folder Links: DRV5056 DRV5056 www.ti.com SBAS644 – APRIL 2018 6.6 Magnetic Characteristics for VCC = 3 V to 3.63 V and 4.5 V to 5.5 V, over operating free-air temperature range (unless otherwise noted) TEST CONDITIONS (1) PARAMETER VQ Quiescent voltage B = 0 mT, TA = 25°C MIN TYP MAX DRV5056A1 0.535 0.6 0.665 DRV5056A2 0.54 0.6 0.66 DRV5056A3, DRV5056A4 0.55 0.6 0.65 VQΔT Quiescent voltage temperature drift B = 0 mT, TA = –40°C to 125°C versus 25°C VQΔL Quiescent voltage lifetime drift High-temperature operating stress for 1000 hours VCC = 5 V, TA = 25°C S Sensitivity VCC = 3.3 V, TA = 25°C VCC = 5 V, TA = 25°C BL Full-scale magnetic sensing range (2) VCC = 3.3 V, TA = 25°C VL Linear range of output voltage (3) STC Sensitivity temperature compensation for magnets (4) (3) VCC = 5 V 0.08 VCC = 3.3 V 0.04