Melexis DVK IMC-Hall Shield Development Kit User Guide

Melexis DVK IMC-Hall Shield Development Kit

Scope and Development Kit content

The DeVelopment Kit (DVK) DVK-IMC-Hall-Shield (rev1) provides all the needed components to evaluate the performances and the functionalities of MLX91208, MLX91216 and MLX91218 IMC-Hall® current sensor ICs.

The kit includes: – Ready-to-use evaluations boards provided with MLX91216LDC- CAV-001 and MLX91218LDC-ARX-300 for a quick start.

• An MLX91208/91216 evaluation board with no IC to be customized with the reference you need.
• An MLX91218 evaluation board with no IC to be customized with the reference you need.
• Additional spare sensors.
• SiFe ferromagnetic shields.
• Copper bars.
• Plastic holders in order to easily assemble all the configurations possible
  

Key features

DVK

• Plug and play DVK (all included from copper bar to sensor)
• DVK provided with extra PCBs to connect any other variant
• Build and test different configurations (shields, sensors, sensitivity)
  All the shields datasheets can be downloaded from our supplier website: https://www.maglab.ch/products/core-lam/Sensors

Sensor ICs

• (Programmable) high speed current sensors
• (Programmable) linear transfer characteristic
• Measurement range from 3 to 100mT
• SOIC8 package RoHS compliant
• Wideband from DC to 400kHz
• Short response time

PCB

• Placeholder for output filter implementation
• Ground Layer and Decoupling capacitors for high EMC performances

Hardware

MLX91208/16 PCB layout

MLX91208/16 Schematics

MLX91208/16 Pins Designation

Table 1: MLX91208/91216 pin designation

PIN

| Name| Function|

Type

---|---|---|---

1

| VDEC| Internal digital voltage|

Analog

2

| NC| Not connected|

–

3

| VSS| Ground Voltage|

Ground

4

| TEST| Test pin|

5

| VDD| Supply Voltage|

Supply

6

| VOUT| Output Voltage|

Analog

7

| NC| Not connected|

–

8

| NC| Not connected|

–

Table 2: MLX91208/91216 connector pins designation

MLX91208/16 Bill of Material

Table 3: MLX91208/91216 BOM

Part

| Description|

Value

---|---|---

C1

| Reference pin decoupling capacitor EMI, ESD|

100 nF

C2

| Supply capacitor, EMI , ESD|

2.2 nF

C3

| Output pin Decoupling capacitor EMI, ESD|

47 nF

MLX91218 PCB layout

MLX91218 Schematics

MLX91218 Pins Designation

Table 4: MLX91218 pin designation

PIN

| Pin| Function|

Type

---|---|---|---

1

| VREF| Reference voltage|

Analog

2

| OUT| Output voltage|

Analog

3

| GND| Ground Voltage|

Ground

4

| VDD| Supply voltage|

Supply

5

| NC| Not connected|

–

6

| OCD_EXT| Overcurrent detection based on external threshold|

Analog

7

| OCD_INT| Overcurrent detection based on an internal threshold|

Analog

8

| VOC_EXT| External threshold for the OCD|

Analog

Table 5: MLX91218 connector pins designation

Pins

| Function
---|---

1

|

Output voltage

2|

Supply Voltage

3

|

Ground Voltage

4|

OCD_EXT pin

5

|

Reference voltage

6

|

Ground voltage

7

|

VOC_EXT pin

8

|

OCD_INT pin

MLX91218 Bill of Material

Table 5: MLX91218 BOM

Part| Description|

Value

---|---|---
C1| Reference pin decoupling capacitor EMI, ESD|

47 nF

C2

| Supply capacitor, EMI , ESD|

4.7 nF

C3

| Output pin Decoupling capacitor EMI, ESD|

47 nF

R1

| Internal OCD resistor|

10 kΩ

R2

| External OCD resistor|

10 kΩ

R3/R4

| Customized External OCD resistor|

–

Sensors characteristics

MLX 91208/16 Characteristics

The Development Kit contains four PCBs. Two are not populated. Please refer to the datasheet of MLX91208, MLX91216 or MLX91218 to find the adapted product for your application.

Table 6: MLX91216LDC-CAV-001 configuration

MLX91218 Characteristics

Table 7: MLX91218LDC-ARX-300 configuration

Disclaimer

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