HAL82x
DATA SHEET
4.4. Ambient Temperature
Temperature
TC-Range TC
TCSQ
Coefficient of
Magnet (ppm/K)
Due to the internal power dissipation, the temperature
on the silicon chip (junction temperature TJ) is higher
than the temperature outside the package (ambient
temperature TA).
−500
1
2
2
2
2
2
2
2
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
3
6
7
2
5
0
3
7
1
6
6
7
2
6
1
0
5
5
1
6
3
7
1
4
−600
31
28
24
20
16
16
12
12
8
−700
TJ = TA + ΔT
−800
−900
At static conditions and continuous operation, the fol-
lowing equation applies:
−1000
−1100
−1200
−1300
−1400
−1500
−1600
−1700
−1800
−1900
−2000
−2100
−2200
−2400
−2500
−2600
−2800
−2900
−3000
−3100
−3300
−3500
ΔT = IDD × VDD × RthJ
For typical values, use the typical parameters. For
worst case calculation, use the max. parameters for
IDD and Rth, and the max. value for VDD from the appli-
cation.
4
4
0
For VDD = 5.5 V, Rth = 235 K/W, and IDD = 10 mA, the
temperature difference ΔT = 12.93 K.
31
28
28
24
24
20
16
14
12
8
For all sensors, the junction temperature TJ is speci-
fied. The maximum ambient temperature TAmax can be
calculated as:
TAmax = TLmax – ΔT
4.5. EMC and ESD
The HAL82x is designed for a stabilized 5 V supply.
Interferences and disturbances conducted along the
12 V on board system (product standard ISO 7637
part 1) are not relevant for these applications.
8
For applications with disturbances by capacitive or
inductive coupling on the supply line or radiated distur-
bances, the application circuit shown in Fig. 4–1 is rec-
ommended. Applications with this arrangement should
pass the EMC tests according to the product stan-
dards ISO 7637 part 3 (Electrical transient transmis-
sion by capacitive or inductive coupling).
4
4
0
Please contact Micronas for the detailed investigation
reports with the EMC and ESD results.
Note: The above table shows only some approximate
values. Micronas recommends to use the TC-
Calc software to find optimal settings for temper-
ature coefficients. Please contact Micronas for
more detailed information.
24
Feb. 3, 2009; DSH000143_003EN
Micronas
MICRONAS [ MICRONAS ]
