TLE4998S3C Infineon Technologies, TLE4998S3C Datasheet - Page 31

• Manufacturer Part Number: TLE4998S3C
• Description: IC HALL SENSOR LINEAR SSO-3
• Manufacturer: Infineon Technologies
• Type: Linear - Programmabler

Specifications of TLE4998S3C

• Sensing Range: -200mt Trip ~ 200mT Release
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 8mA
• Current - Output (max): 5mA
• Output Type: Digital, Open Drain
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP, SSO-3-10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: SP000481484

12
The sensor supports a basic version of the Single Edge Nibble Transmission (SENT)
protocol defined by SAE. The main difference between the standard version and its
implementation in the TLE4998 is the usage of an open drain instead of a push-pull
output.
12.1
The single edge is defined by a 3 unit time (UT) low pulse on the output, followed by the
high time defined in the protocol (nominal values, may vary by tolerance of internal RC
oscillator, not including analog delay of the open drain output and influence by external
circuitry, unit time programming see
frame concept. A transfer consists of the following parts:
• A synchronization period of 56 UT (in parallel, a new sample is calculated)
• A status nibble of 12-27 UT
• Three data nibbles of 12-27 UT (data packet 1 with a length of 36-81 UT)
• Three data nibbles of 12-27 UT (data packet 2 with a length of 36-81 UT)
• A CRC nibble of 12-27 UT
Figure 11
The CRC checksum includes the status nibble and the data nibbles and can be used to
check the validity of the decoded data. The sensor is available for the next sample 90µs
after the falling edge of the end pulse. This leads to a minimum transfer time of 152 UT,
and a maximum transfer time of 272 UT per sample.
Data Sheet
Sensor processing
Output pin (physical)
Transferred data (logical)
compensate the sample
SENT Output Definition (SAE J2716)
Basic SENT Protocol Definition
sync. period
SENT Frame
Status
nibble
transfer compensated sample
Section
Data
nibble 1
high
31
SENT Output Definition (SAE J2716)
12.2). All values are multiples of a unit time
Data
nibble 1
mid
Data
nibble 2
low
Rev 1.1, 2009-09
TLE4998S3C
CRC
nibble