MLX90251 Datasheet, PDF (15/22 Pages) Melexis Microelectronic Systems – Programmable Linear Hall Effect Sensor

MLX90251
Programmable Linear Hall Effect Sensor
12 Applications Information
12.1 Application Circuits – VA-package
Pin 2, TEST, is not used in applications. For EMC protection it is recommended to connect pin 2 to pin 3,
Ground, as close as possible to the device pins. The values for capacitors, C1 and C2, can be adjusted to
satisfy ESD and EMC requirements according to the environment. Ceramic capacitors are recommended for
use in the application. However for stable operation, the global output capacitor (C2 + C3) should not be
higher than 150nF.If higher capacitors (due to special ESD or EMC requirements) or special circuit
configurations are requested, please contact Melexis.
The MLX90251 can operate with a high impedance load and C2, a load resistor is not required.
Figures 12.1-1…12.1-2 Application Circuits
A voltage of 9V is required on V_DD for programming. All additional components connected to V_DD must be
able to withstand the voltage.
The MLX90251 is designed for operation with a stable 5V supply. If fast voltage transients occur additional
filtering may be required.
Similar Application Circuit can be used when using the GO-package by taking into account the dedicated pin-
out.
3901090251
Rev 009
Page 15 of 22
Data Sheet
Nov/06