CT100LW-HS6
EVB102 SOT23-6 Evaluation Board
User Guide
DESCRIPTION
The CT100 is a 1D linear sensor in full-bridge configuration from Allegro developed on its patented XtremeSense™ TMR technology. The total magnetic field range for the CT100 is from –50 mT to 50 mT, providing XtremeSense performance to achieve unparalleled temperature stability across the full temperature range. The device supports a wide operating voltage range of 1.0 to 5.5 V. The EVB102 SOT23-6 has applications for linear measurements, proximity sensing, and current sensing. This user guide describes how to connect and use the EVB102 SOT23-6 evaluation board.
FEATURES
- Operating magnetic field range ±50 mT
- Stable magnetic performance over temperature
- Differential outputs
- Supply Voltage: 1.0 V to 5.5 V
- Operating temperature: -40ºC to 150ºC
Figure 1: EVB102 SOT23-6 Evaluation Board
Table 1: EVB102 SOT23-6 Evaluation Board Configurations
| Configuration Name | Part Number | Output Voltage Range (mV) | Output Current Range (mV) |
| EVB102 SOT23-6 | CT100LW-HS6 | ±1430 | 0–200 |
Table 2: General Specifications
| Specification | Min. | Typ. | Max | Units |
| Input Operating Voltage | 2.7 | – | 5 | V |
| Input Operating Temperature | –5.0 | – | 5 | A |
| Cutoff Frequency (3 dB) | – | 10 | – | kHz |
USING THE EVALUATION BOARD
This section provides an overview of the connections and configuration options of the EVB102 SOT23-6 evaluation board. Figure 2 highlights the proper configuration and is detailed below. The CT100 datasheet contains detailed in formation on the use and functionality of each pin, detailed specifications about the sensor, and should be consulted for more detailed information than is contained in this user guide.
Figure 2: EVB102 SOT23-6 Evaluation Board
Power Input and Board Configuration
Connect the power supply to VDD and GND. Apply voltage not exceeding 5.5 VDC. Apply 3.3 VDC to VDD and GND for general use. Attach a multimeter to OUT1 and OUT2. Steadily pass the magnet over the IC to obtain a reading; the output should read 0 mV to 200 mV. Allow the magnet to travel from VDD over to GND. The current output should immediately rise and then decline when it reaches GND. Use short cables that are at least 18 AWG.
SCHEMATIC
Figure 3 below shows the schematic of the EVB102 SOT23-6 evaluation board.
Figure 3: EVB102 SOT23-6 evaluation board schematic
LAYOUT
Figures 4 and 5 below show the top and bottom layers of the EVB102 SOT23-6 evaluation board.
Figure 4: EVB102 SOT23-6 evaluation board top layer
Figure 5: EVB102 SOT23-6 evaluation board bottom layer
BILL OF MATERIALS
Table 3: CT100LW-HS6 Evaluation Board Bill of Materials
ELECTRICAL COMPONENTS
| Designator | Quantity | Description | Manufacturer | Manufacturer Part Number |
| PCB | 1 | EVB102 SOT23-6 EVAL PCB | Allegro MicroSystems | – |
| U$6 | 1 | CT100 Sensor | Allegro MicroSystems | – |
| J1, J2, J3, J4 | 4 | Header, vertical, through-hole | TE | 9-146285-0-01 |
Revision History
| Number | Date | Description |
| – | 27-Sep-24 | Initial release |
Copyright 2024, Allegro MicroSystems.
Allegro MicroSystems reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current.
Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems assumes no responsibility for its use; nor for any infringement of patents or other rights of third parties which may result from its use.
Copies of this document are considered uncontrolled documents.
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Documents / Resources
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ALLEGRO MICRO CT100LW-HS6 Evaluation Board [pdf] Owner's Manual CT100LW-HS6, EVB102-SOT23-6, CT100LW-HS6 Evaluation Board, CT100LW-HS6, Evaluation Board, Board |