TLE4998C3 Infineon Technologies, TLE4998C3 Datasheet - Page 35

• Manufacturer Part Number: TLE4998C3
• Description: IC HALL SENSOR LINEAR SSO-3
• Manufacturer: Infineon Technologies
• Type: Linear - Programmabler

Specifications of TLE4998C3

• Sensing Range: -200mt Trip ~ 200mT Release
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 8mA
• Current - Output (max): 5mA
• Output Type: Digital, PWM (Current)
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SSO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: SP000476468

in order to be able to maintain the herein given master pulse requirements. All these
parameters have considerable influence to find the proper unit time setup.
Table 22
Parameter
Register size
Unit time
1)
2)
The nominal unit time is calculated by:
12.3
An SPC transmission is initiated by a Master pulse on the OUT pin. To detect a low level
on the OUT pin, the voltage must be below a threshold V
OUT line has been released as soon as V
definitions for the master pulse. The master low time t
t
It is recommended to chose the typical master low time exactly between the minimum
and the maximum possible time: t
allowed timing windows are larger for longer low times, the master should use a quarz
clock source to provide a high timing accuracy (approx. 1%). For improved robustness,
the master pulse can be adopted by the master once the effective unit time is known
through the sensor’s synchronisation period length. If the master low time exceeds the
maximum low time, the sensor does not respond and is available for a next triggering
Data Sheet
mtr
Prediv default is decimal = 8 for 3 µs nominal SPC unit time
RC oscillator frequency variation +/- 20%
are individual for the different SPC modes and are given in the subsequent sections.
Master Pulse Requirements
Predivider Setting
Symbol
Prediv
t
UNIT
t
UNIT
Clk
mlow,typ
= (Prediv + 16) / Clk
Limit Values
min.
2.0
UNIT
= 8MHz ± 20%
35
thr
= (t
4
max.
3.88
is crossed.
mlow,min
mlow
Unit
bit
µs
+ t
thf
UNIT
as well as the total trigger time
. The sensor detects that the
Figure 12
mlow,max
SPC Output Definition
Notes
Predivider
Clk
UNIT
) / 2. Although the
shows the timing
=8MHz
TLE4998C3C
Rev 1.1, 2009-09
1)
2)