SS1331

Unipolar Hall Switch-Low Sensitivity

5

V3.10

Nov 1, 2013

Application Information

For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the

When using a resistor, three points are important:

∙I

When using a diode, a reverse current cannot flow and the voltage drop is almost constant (≈0.7V).

Therefore, a 100

Ω/0.25W resistor for 5V application and a diode for higher supply voltage are recommended.

Typical Three-Wire Application Circuit

When a weak power supply is used or when the device is intended to be used in noisy environment, it is recom-

mended that figure followed is used.

The low-pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes occur-

Both solutions provide the required reverse voltage protection.

Automotive and Harsh, Noisy Environments Three-Wire Circuit

ESD Precautions

Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).

Always observe Electro Static Discharge control procedures whenever handling semiconductor products.