TLE4998S4 Infineon Technologies, TLE4998S4 Datasheet - Page 35

• Manufacturer Part Number: TLE4998S4
• Description: IC HALL SENSOR LINEAR SSO-4
• Manufacturer: Infineon Technologies
• Type: Linear - Programmabler

Specifications of TLE4998S4

• 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
• Operating Supply Voltage: 5 V
• Package / Case: SSO
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Maximum Output Current: 5 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Package / Case: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000412110

As only one Hall value needs to be transferred within one sequence, the second data
package is divided into two parts (see
• First, the remaining 4 LSBs of the Hall signals are transferred in the first data nibble.
• Second, the temperature is transferred as an 8-bit value. The value is transferred in
Table 18
Junction Temperature Typ. Decimal Value from Sensor Note
1)
The status nibble as defined in the SAE standard has two free bits (the LSBs or first and
second bit). These bits contain the selected magnetic range of the sensor and therefore
allow the received data to be interpreted easily.
As no serial data is transferred with the IC, the remaining bits of the status nibble are not
required. The MSB (fourth bit) notifying a start of a serial transmission and the data bit
(or third bit) would be kept zero. Thus, these bits are used in a more suitable way for this
sensor, as shown in
In case of startup- or supply overvoltage condition, the open-drain stage is disabled
(high ohmic) and the corresponding status bits are set. After VDD has returned to the
normal operating range, this status information will be transmitted within the first SENT
transmission.
In case of uncorrectable EEPROM failure, the open-drain stage is disabled and is kept
in “switched off” state permanently (high ohmic/ sensor defect). The fourth bit is switched
to “1” for the first data package transferred after a reset. This allows the receiver to detect
low-voltage situations or EMC problems of the sensor. The third bit is set to “1” in case
of an over-voltage condition of the IC. This signals that a sensor is still functioning, but
its performance may be out of specification. It enables an early warning for high supply
voltage, before the sensor completely stops functioning (e.g. V
Chapter
Data Sheet
- 55°C
0°C
25°C
200°C
This means the receiver may use the whole 16-bit data available in the sensor when
reading and using all 4 nibbles transferred.
unsigned integer format and corresponds to -55°C to 200°C. For example, transferring
the value 55 corresponds to 0°C. The temperature is additional information and
although it is not calibrated, may be used for a plausibility check, for example.
Theoretical range of temperature values, not operating temperature range
7.1).
Mapping of Temperature Value
Table
0
55
80
255
20.
Table
35
SENT Output Definition (SAE J2716)
20):
Theoretical lower limit
Theoretical upper limit
DD
> 17.5 V, see
V 1.0, 2008-07
TLE4998S
1)
1)