DATA SHEET

HAL1xy

Micronas

April 8, 2009; DSH000150_001EN

11

3. Application Notes

3.1. Ambient Temperature

Due to the internal power dissipation, the temperature

than the temperature outside the package (ambient

At static conditions and continuous operation, the fol-

lowing equation applies:

port for detailed instructions on calculating ambient

temperature.

For typical values, use the typical parameters. For

worst case calculation, use the max. parameters for

application.

can be calculated as:

3.2. Extended Operating Conditions

All sensors fulfill the electrical and magnetic character-

istics when operated within the Recommended Oper-

ating Conditions (see page 8).

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.

3.3. Start-up Behavior

Due to the active offset compensation, the sensors

specified in Section 2.5.: Characteristics on page 9.

During the initialization time, the output state is not

put will be low if the applied magnetic field B is above

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

output state, the applied magnetic field must be above

3.4. EMC and ESD

For applications with disturbances on the supply line or

radiated disturbances, a series resistor and a capacitor

are recommended (see Fig. 3–1). The series resistor

and the capacitor should be placed as closely as

possible to the HAL sensor.

Please contact Micronas for the detailed investigation

reports with the EMC and ESD results.

Fig. 3–1: Test circuit for EMC investigations

T

J

T

A

T

Δ

+

=

T

Δ

I

DD

V

DD

×

R

th

×

=

T

Amax

T

Jmax

T

Δ

–

=

220 W

4.7 nF

OUT

GND

1

2

3

1.2 kW

20 pF