DVK91209 Melexis

MLX91209 Development Kit Melexis Development Kit MLX91209 Rev 002 25/09/20 1. Description The development kit provides the needed information and components to develop a current sensor based on the MLX91209. The main goal is to show the functionalities and the features of the part in a simple and effective way. The kit includes: 5 samples MLX91209-CA 3 separated bare PCBs 3 ferromagnetic cores (Supra 50 SP) Datasheet and Application Note can be found on www.melexis.com 2. MLX91209 EVB1 Layout TOP- layer Bottom- layer Page 1 of 4 MLX91209 Development Kit 3. Sensor sensitivity MLX91209-VA current sensors are factory calibrated to a default sensitivity of 50 mV/mT. MLX91209 is fully programmable at customer level within a range 5-150 mV/mT. The positive direction field is from the bottom to the top of the package (see drawing below). Product Code Sensitivity Range (Typ.) 5-150 mV/mT (50mV/mT) MLX91209 CA 4. Sensor pin-out and connections Diagnostic low Diagnostic high Figure 1: Connections schematics for MLX91209 Pin Name Type Function Part Description Value Unit 1 VDD Supply Supply Voltage C1 Supply capacitor, EMI, ESD 100 nF 2 OUT Analog Current Sensor Output (1) C2 Decoupling, EMI, ESD 2-10 nF 3 TEST/MUST Digital Test and Factory Calibration R1 Pull up or pull down capacitance 6-100 k 4 VSS Ground Supply Voltage Table 1: Pin out description Table 2: Capacitors typical values (1) 10nF is recommended for better EMC and ESD performance Page 2 of 4