tle4998s Infineon Technologies Corporation, tle4998s Datasheet - Page 20

• Manufacturer Part Number: tle4998s
• Description: Tle4998s/p-programming Guide
• Manufacturer: Infineon Technologies Corporation

For valid usage of the device, the H_ADC value must be always in a range of +/- 20000
decimal, which corresponds to approximately 2/3 of the theoretical integer range.
Otherwise the used magnetic flux density is too high and the ADC might be saturated.
4.2.2
This register contains a 15bit unsigned value. This value is not important for the usage
of the IC. Just for information this value is roughly in a range of 22000 to 29000 decimal
for temperatures between -50°C and 150°C.
4.2.3
This register contains a 16bit signed value similar to the H_ADC value and is required to
calculate the output DAC value for a specific magnetic value. This value is at a given
magnetic range (for a calibrated device) in the range of +/- 30000 (approx. 1.5 times of
H_ADC) when the max. positive or negative field is applied.
4.2.4
This register contains a 16 bit signed value and delivers the current junction temperature
of the device. To retreive the actual temperature in °C, the register value needs to be
calculated with T
4.2.5
This value is the 16 bit unsigned decimal result applied to the internal protocol generation
for the open drain output stage. It includes the clamping limits if programmed. The value
range is from decimal 0 to 65535.
4.2.6
The content of the status register is shown in
Figure 15
• CRC ok must be ’1’, otherwise the DSP BIST failed and the device is defective.
Application Note
T_ADC
H_CAL
T_CAL
D_OUT
STATUS
15
Status register
J
14
=T_CAL/16+48.
13
12
11
10
9
8
18
7
Figure
TLE4998S/P-Programming Guide
6
Interface Access Details - Part III
5
15.
4
3
2
1
LSB
0
V 1.1, 2008-08