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DVK91220 - SOIC8
User Guide
Contents
1. Scope and Development Kit content ..................................................................................................... 1
2. Key features .......................................................................................................................................... 2
2.1. Sensor .................................................................................................................................................. 2
2.2. PCB ....................................................................................................................................................... 2
3. Hardware ............................................................................................................................................... 3
3.1. PCB layout ........................................................................................................................................... 3
3.2. PCB characteristics .............................................................................................................................. 3
3.3. Schematics .......................................................................................................................................... 4
3.4. Pins Designation .................................................................................................................................. 4
3.5. Bill of Material ..................................................................................................................................... 5
4. MLX91220KDC-ABF-050 ........................................................................................................................ 6
4.1. Characteristics ..................................................................................................................................... 6
4.2. Sensor output ...................................................................................................................................... 7
5. Disclaimer .............................................................................................................................................. 8
1. Scope and Development Kit content
The DVK91220 provides all the needed components to evaluate the performances and the functionalities of
MLX91220 integrated current sensor family. It includes:
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A ready-to-use evaluation board provided with MLX91220KDC-ABF-050 for a quick start.
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An evaluation board with no IC to be customized with the reference you need. Please refer to the
datasheet for all available product codes.
Doc. № 390119122002
REVISION 1.0 - 1 December 2020
DVK91220 - SOIC8
User Manual
Page 1 of 8
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Table of Contents
Summary of Contents for Melexis DVK91220-SOIC8
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Page 1: Table Of Contents
DVK91220 – SOIC8 User Guide Contents 1. Scope and Development Kit content ..................... 1 2. Key features ............................2 2.1. Sensor ..............................2 2.2. PCB ............................... 2 3. Hardware ............................... 3 3.1. PCB layout ............................3 3.2. PCB characteristics ..........................3 3.3. -
Page 2: Key Features
DVK91220 – SOIC8 User Guide Figure 1: Content of DVK91220-SOIC8 : A ready-to use EVB with MLX91220KDC-ABF-050 (left) and a customizable EVB (right) 2. Key features 2.1. Sensor Isolated current measurement demonstrator factory calibrated for 50 A 5 V of working supply ... -
Page 3: Hardware
DVK91220 – SOIC8 User Guide 3. Hardware 3.1. PCB layout MLX91220 Figure 2: Layout of the EVB91220 SOIC8 3.2. PCB characteristics The MLX91220_SOIC8_EVB is manufactured with two 105 µm copper layers and an ENIG Surface finishing. Please note that the revision 2 of the board (MLX91220_SOIC8_EVB_2) has two 70 µm copper layers and no ENIG surface finishing. -
Page 4: Schematics
DVK91220 – SOIC8 User Guide 3.3. Schematics Figure 3: Schematics of the EVB91220 - SOIC8 3.4. Pins Designation Table 1: MLX91220 pin designation Function Type Primary Current Path Analog Input Primary Current Path Analog Output Ground Voltage Ground Reference Voltage Analog Output Voltage Analog... -
Page 5: Bill Of Material
DVK91220 – SOIC8 User Guide 3.5. Bill of Material Part Description Value Reference pin decoupling 47 nF capacitor EMI, ESD Supply capacitor, EMI , ESD 47 nF Output pin Decoupling capacitor 4.7 nF EMI, ESD C4, C5, C7 Decoupling capacitor EMI, ESD 1 nF R1, R3 Connection to header... -
Page 6: Mlx91220Kdc-Abf-050
DVK91220 – SOIC8 User Guide 4. MLX91220KDC-ABF-050 4.1. Characteristics The Development Kit contains two PCBs. One is not populated. Please refer to the datasheet of MLX91220 or MLX91221 to find the adapted product for your application. One PCB is populated with MLX91220KDC-ABF-050. Table 3 describes its configuration. Please refer to the datasheet for the full specifications. -
Page 7: Sensor Output
DVK91220 – SOIC8 User Guide 4.2. Sensor output Figure 4 displays the expected output of the sensor and ���� ������������ value. The measured current can be retrieved by the following formula: ���� − ���� ���� = ������������ ������������ ���� Where S = 40 mV/A. Figure 4: Output of MLX91220KDC-ABF-050 Doc. -
Page 8: Disclaimer
Melexis prevail over this disclaimer. This document is subject to change without notice, and should not be construed as a commitment by Melexis. Therefore, before placing orders or prior to designing the product into a system, users or any third party should obtain the latest version of the relevant information. - Page 9 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Melexis DVK91220 - SOIC8...
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