Texas Instruments DRV5055EVM User Manual Download Page 3

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Overview

3

SLYU047A – April 2018 – Revised May 2018

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Copyright © 2018, Texas Instruments Incorporated

DRV5055EVM

1

Overview

The DRV5055 family of linear Hall effect sensors sense magnetic fields ranging from 21 mT to 176 mT,
depending on device and supply voltage. For each device, four gains are available. For the DRV5055, the
gains at 3.3 V V

CC

include: 7.5 mV/mT, 15 mV/mT, 30 mV/mT, and 60 mV/mT. These devices operate

from a single 3-V to 5.5-V power supply, drawing a maximum of 10 mA of supply current. These devices
are currently available in a 3-pin SOT-23 or 3-pin TO-92 package.

Table 1

lists available gain options.

Table 1. DRV5055 Device Summary

Product

Gain at 3.3V V

CC

DRV5055A1

60 mV/mT

DRV5055A2

30 mV/mT

DRV5055A3

15 mV/mT

DRV5055A4

7.5 mV/mT

1.1

Kit Contents

Table 2

lists the contents of the DRV5055EVM kit. Contact the nearest

Texas Instruments Product

Information Center

if any component is missing. Click the links in

Table 3

for further information on the

DRV5055. The device name links to the product web folder on

www.ti.com

. The literature number links to

the user's guide PDF.

Table 2. Kit Contents

Item

Quantity

DRV5055EVM test board

1

Cylindrical magnet

1

USB cable

1

1.2

Related Documentation From Texas Instruments

This EVM user's guide provides information regarding TI's integrated circuits used in the assembly of the
DRV5055EVM. This user's guide is available from the TI website under literature number SLYU047. Any
letter appended to the literature number corresponds to the document revision that is current at the time of
the writing of this document. Newer revisions are available from

www.ti.com

or the Texas Instruments'

Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580. When
ordering, identify the document by both title and literature number.

Table 3

lists documentation related to

the DRV5055EVM.

Table 3. Related Documentation

Document Title

Document Literature

Number

DRV5055

data sheet

SBAS640

DRV5055-Q1

data sheet

SBAS639

SN74LVC1G17

data sheet

SCES351

TCA9535

data sheet

SCPS201

LP5907

data sheet

SNVS798

TS5A23159

data sheet

SCDS201

Summary of Contents for DRV5055EVM

Page 1: ...bes the characteristics operation and use of the DRV5055 evaluation module EVM This EVM is designed to evaluate the performance of the DRV5055 ratiometric linear Hall effect sensors Throughout this do...

Page 2: ...of LCD for Measurement Display Microcontroller for Data Processing and Switch for Expanding GPIO Functionality 9 4 Schematic of Push Button User Input Slider Switch User Input and Programming Input 1...

Page 3: ...for further information on the DRV5055 The device name links to the product web folder on www ti com The literature number links to the user s guide PDF Table 2 Kit Contents Item Quantity DRV5055EVM t...

Page 4: ...oard is powered calibrated and is taking sample measurements from the DRV5055A1 default EVM startup device 2 2 Measurements The DRV5055EVM measures a magnetic field with multiple devices and the respe...

Page 5: ...microcontroller ADC memory values from the onboard LCD Toggle between devices with a press of the Device Select Switch push button S1 See the links in Table 3 for comprehensive information about the...

Page 6: ...se components are used to form low pass filters on the outputs of all of the DRV5055Ay devices where y 1 to 4 The capacitors also allow the ADC input node to remain relatively stable throughout the AD...

Page 7: ...R40 R43 are for power saving when any the corresponding TCA9535 output pin is high By default TCA9535 GPIOs are all disabled and thus to enable these GPIOs the 10 k R34 ties pin 1 to 3 3 V VCC 3 3 11...

Page 8: ...are intended to show how the board is laid out The figures are not intended to be used for manufacturing DRV5055EVM PCBs 4 1 Schematics Figure 2 to Figure 6 show the schematic of the DRV5055EVM Figur...

Page 9: ...P3 3 L11 53 P3 2 L10 54 P3 1 L9 55 P3 0 L8 56 MSP430FR4133IG56R M1 1E 2B BUTTON 2A 2C 2F 2D 2G 2E 3B 3A 3C 3F 3D 3G 3E 4B DP3 4A 4C 4F 4D 4G 4E COM 10V 0 1uF C39 10V 0 1uF C40 GND GND GND 10V 0 1uF C...

Page 10: ...0k R47 10 0k R48 10 0k R49 GND VCC VCC VCC 2200pF C1 100 R51 35V 1 5uF C44 GND GND 47k R1 0 R2 Schematics PCB Layout and Bill of Materials www ti com 10 SLYU047A April 2018 Revised May 2018 Submit Doc...

Page 11: ...12 P10 13 P11 14 P12 15 P13 16 P14 17 P15 18 P16 19 P17 20 A0 21 SCL 22 SDA 23 VCC 24 TCA9535PWR U17 GND 10 0k R33 10 0k R32 VCC SCL SDA 10 0k R34 I5A1 I5A2 I5A3 I5A4 I5A1 I5A2 I5A3 I5A4 VCC 100k R40...

Page 12: ...Revised May 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated DRV5055EVM 4 2 PCB Layout Figure 7 through Figure 10 illustrate the PCB layers of the DRV5055EVM Figure 7...

Page 13: ...ann WSW Components H9 H10 H11 H12 4 Bumpon Hemisphere 0 44 X 0 20 Clear Transparent Bumpon SJ 5303 CLEAR 3M J1 1 Header 100mil 5x1 Gold TH Header 100mil 5x1 TH HTSW 105 07 G S Samtec J2 1 Connector Pl...

Page 14: ...92 3 LPG0003A PDRV5055A1ELPGQ1 Texas Instruments U14 1 Single Schmitt Trigger Buffer DCK0005A SMALL T R DCK0005A SN74LVC1G17DCKT Texas Instruments U16 1 250 mA Ultra Low Noise Low IQ LDO DBV0005A SOT...

Page 15: ...corporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original April 2018 to A Revision Page Changed fr...

Page 16: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Page 17: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Page 18: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Page 19: ...OST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF...

Page 20: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

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