HAL700

ADVANCE INFORMATION

10

Micronas

4. Application Notes

4.1. Ambient Temperature

Due to the internal power dissipation, the temperature

than the temperature outside the package (ambient

At static conditions, the following equation is valid:

∆T = I

For typical values, use the typical parameters. For

worst case calculation, use the max. parameters for

cation.

can be calculated as:

4.2. Extended Operating Conditions

All sensors fulfil the electrical and magnetic character-

istics when operated within the Recommended Oper-

ating Conditions (see page 7)

Supply Voltage Below 3.8 V

Typically, the sensors operate with supply voltages

above 3 V, however, below 3.8 V some characteristics

may be outside the specification.

Note: The functionality of the sensor below 3.8 V is not

tested. For special test conditions, please contact

Micronas.

4.3. Start-up Behavior

Due to the active offset compensation, the sensors

specified in the Electrical Characteristics (see page 8)

During initialization time, the output states are not

outputs will be either high or low for a stable magnetic

field (no toggling). The outputs will be low if the applied

either low or high. In order to achieve a well-defined

output state, the applied magnetic flux density must be

4.4. EMC and ESD

For applications that cause disturbances on the supply

line or radiated disturbances, a series resistor and a

capacitor are recommended (see Fig. 4–1). The series

resistor and the capacitor should be placed as closely

as possible to the Hall sensor.

Please contact Micronas for detailed investigation

reports with EMC and ESD results.

Fig. 4–1: Test circuit for EMC investigations

4GND

3 S1-Output

2 S2-Output

220

Ω

4.7 nF

2.4 k

Ω

20 pF

2.4 k

Ω

20 pF