TLE4998C4 Infineon Technologies, TLE4998C4 Datasheet
TLE4998C4
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TLE4998C3C Programmable Linear Hall Sensor Data Sheet, Rev 1.1, September 2009 ...
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... Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect human life ...
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Revision History: Previous Version: Page Subjects (major changes since last revision) Page 13 Table 4: Footnote 3) adapted Page 15 Table 5: Sensitivity drift description adapted Page 15 Table 5: Footnote 3) adapted Page 25 Table 14: Footnote 1) and ...
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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Synchronous Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 ...
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Programmable Linear Hall Sensor 1 Overview 1.1 Features • SPC (Short PWM Code) protocol with enhanced interface features based on SENT (Single Edge Nibble Transmission, defined by SAE J2716) • 20-bit Digital Signal Processing (DSP) • Digital temperature compensation • ...
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Target Applications • Robust replacement of potentiometers – No mechanical abrasion – Resistant to humidity, temperature, pollution and vibration • Linear and angular position sensing in automotive applications such as pedal position, suspension control, throttle position, headlight levelling, and ...
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General 2.1 Block Diagram Figure 2 shows a simplified block diagram. Supply Bias spinning A HALL Temp. A Sense Figure 2 Block diagramm 2.2 Functional Description The linear Hall IC TLE4998C3C has been designed specifically to meet the requirements ...
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Therefore, the high level needs to be obtained by an external pull-up resistor. This output type has the advantage that the receiver may use an even lower supply ...
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Transfer Functions The examples in Figure 3 the desired output value ranges. • Polarity Mode: – Bipolar: Magnetic fields can be measured in both orientations. The limit points do not necessarily have to be symmetrical around the zero field ...
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Maximum Ratings Table 2 Absolute Maximum Ratings Parameter Storage temperature Junction temperature Voltage on V pin with DD respect to ground Supply current @ overvoltage V max. DD Reverse supply current @ V min. DD Voltage on output pin ...
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Operating Range The following operating conditions must not be exceeded in order to ensure correct operation of the TLE4998C3C. All parameters specified in the following sections refer to these operating conditions, unless otherwise indicated. Table 3 Operating Range Parameter ...
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Electrical, Thermal, and Magnetic Parameters Table 4 Electrical Characteristics Parameter VDD-GND capacitor OUT-GND capacitor SPC transmission time Supply current Output current @ OUT shorted to supply lines Thermal resistance 2) Power-on time Power-on reset level Output impedance Output fall ...
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Depends on external R and OUT OUTsat 6) Range 100 mT, Gain 2.23, internal LP filter 244 Hz mT °C ...
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Calculation of the Junction Temperature The internal power dissipation P temperature above the ambient temperature. The power multiplied by the total thermal resistance to T leads to the final junction temperature. A Junction to Case components ...
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This range is also used for temperature and offset pre-calibration of the IC 5) Depending on offset and gain settings, the output may already be saturated at lower fields 6) Gain setup is 1 operating temperature range ...
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Signal Processing The signal flow diagram in algorithm. Range Hall A D Sensor Temperature TC Sensor Temperature Compensation Figure 5 Signal Processing Flow Magnetic Field Path • The analog output signal ...
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The temperature is normalized by subtraction of the reference temperature T (zero point of the quadratic function) • The linear path is multiplied with the TC • In the quadratic path, the temperature difference to T the TC value ...
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Gain Setting The overall sensitivity is defined by the range and the gain setting. The output of the ADC is multiplied with the Gain value. Table 8 Gain Parameter Register size Gain range Gain quantization steps ∆ 1) For ...
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DSP Input Low-Pass Filter A digital low-pass filter is placed between the Hall A/D converter and the DSP, and can be used to reduce the noise level. The low-pass filter has a constant DC amplification (Gain ...
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Figure 6 shows the filter characteristics as a magnitude plot (the highest setting is marked). The “off” position would be a flat 0 dB line. The update rate after the low-pass filter is 16 kHz ...
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Clamping The clamping function is useful for separating the output range into an operating range and error ranges. If the magnetic field is exceeding the selected measurement range, the OUT output value is limited to the clamping values. Any ...
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Figure 7 shows an example in which the magnetic field range between is mapped to output values between 10240 LSB OUT (LSB ) 16 65535 55295 10240 0 B min Figure 7 Clamping Example Note: The clamping high value must ...
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Error Detection Different error cases can be detected by the On-Board Diagnostics (OBD) and reported to the microcontroller in the status nibble (see 7.1 Voltages Outside the Operating Range The output signals an error condition if Table 13 Overvoltage ...
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Temperature Compensation The magnetic field strength of a magnet depends on the temperature. This material constant is specific for the different magnet types. Therefore, the TLE4998C3C offers a second-order temperature compensation polynomial, by which the Hall signal output is ...
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Handled by algorithm only (see Application Note) 8.1 Parameter Calculation The parameters TC and TC 1 Now the digital output for a given field OUT = the full-range magnetic field dependent on the range ...
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Calibration For the calibration of the sensor, a special hardware interface required. All calibration and setting bits can be temporarily written into a Random Access Memory (RAM). This allows the EEPROM to remain untouched during ...
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Calibration Data Memory When the MEMLOCK bits are programmed (two redundant bits), the memory content is frozen and may no longer be changed. Furthermore, the programming interface is locked out and the chip remains in application mode only, preventing ...
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Table 16 Programming Characteristics Parameter Number of EEPROM programming cycles Ambient temperature at programming Programming time Calibration memory Error Correction 1) 1 cycle is the simultaneous change of ≥ 1 bit 2) Depending on clock frequency at V 9.2 Programming ...
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Application Circuit Figure 9 shows the connection of multiple sensors to a microcontroller TLE out 4998x3C GND V DD TLE out 4998x3C GND Figure 9 Application Circuit Note: For calibration and programming, the interface has to be ...
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PG-SSO-3-92 Package Outlines 1 x 45˚ 1.905 0.4 0.2 B 1.67 2x 0.2 B (1.75) B 0.2 6. solder function area Figure 10 PG-SSO-3-92 (Plastic Green Single Small Outline Package) Data Sheet PG-SSO-3-92 Package Outlines 5.34 ±0.05 ...
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SPC Output Definition The sensor supports a SPC (Short PWM Code) protocol, which enhances the standardized SENT protocol (Single Edge Nibble Transmission) defined by SAE J2716. SPC enables the use of enhanced protocol functionality due to the ability to ...
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Master Line idle Trigger Pulse OUT Data Data Nibble 3 Nibble 4* Figure 11 SPC Frame The CRC checksum includes the status nibble and the data nibbles and can be used to check the validity of the decoded data. The ...
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SPC frame. Table 21 Mapping of Temperature Value Junction Temperature Typ. Decimal Value from Sensor Note - 55°C 0°C 25°C ...
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All these parameters have considerable influence to find the proper unit time setup. Table 22 Predivider Setting Parameter Register size Unit time 1) Prediv default is decimal ...
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V of the falling edge in the sensor and the triggering of the ECU. Table 23 Master Pulse Parameters Parameter Falling edge threshold Rising edge threshold Total trigger time Master delay time 1) UT ...
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Synchronous Transmission In the “synchronous” mode, the sensor (slave) starts to transfer a complete data frame only after a low pulse is forced by the master on the OUT pin. This means that the data line is bidirectional - ...
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The range information in the status bit can be used to determine whether the range has been properly identified. Changing the range takes some time due to the settling time of internal circuitry. The first sample after a range switch ...
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SPC unit time. Alternatively, the sensors can be trimmed using the predivider settings to further reduce their relative unit time difference for more robustness. Table 26 Master Pulse Timing Requirements for ID Selection Mode Parameter Symbol Master low time t ...
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Table 27 Content of a SPC Data Frame (5-8 Nibbles) TRIGGER SYNC bits description state state status information 10 RR/ID startup condition overvoltage RR/ID 00 normal state in RR ...
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Checksum Nibble Details The Checksum nibble is a 4-bit CRC of the data nibbles including the status nibble. The CRC is calculated using a polynomial x In the TLE4998C3C it is implemented as a series of XOR and shift ...
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