The Infineon TLE4802 is an inductive sensor IC designed for angular position sensing in automotive applications such as steering torque and angle sensors. [cite: 1039, 1040, 1047] It utilizes the eddy current method to detect the position of a metallic target over PCB-printed coils. [cite: 1048] The TLE4802 features a digital signal processing (DSP) unit for signal compensation, angle, and torque calculation. [cite: 1049] It offers two single-wire interfaces, SENT (based on SAE J2716-2016) and SPC, for flexible integration. [cite: 1033, 1050]
Key features of the TLE4802 include inductive-based measurement, intrinsic stray field robustness according to ISO 11452-8:2015, and dual angle measurements with computed torque information. [cite: 1026, 1027, 1028] It is classified as an ISO 26262:2018 Safety Element out of Context for safety requirements up to ASIL D and includes a cybersecurity feature, enabling ISO 21434 compliance at the system level. [cite: 1031, 1032, 1051] The sensor comes in a PG-TSSOP-16 SMD package and is rated for an ambient temperature range of -40°C to 150°C. [cite: 1034] It also provides overvoltage and reverse polarity protection and has integrated memory for calibration and configuration. [cite: 1035, 1036] The TLE4802 is RoHS compliant and halogen-free. [cite: 1037] Product validation is performed according to AEC-Q100, Grade 0, qualifying it for automotive applications. [cite: 1042, 1045]
Product Parameters:
Product Type: TLE4802SC16-S0000 [cite: 1052]
Package: PG-TSSOP-16 [cite: 1052]
Marking: 4802SC [cite: 1052]
Ordering Code: SP006068556 [cite: 1052]
Maximum supply voltage ($V_{DD_max}$): -18V to 18V (max. 40 h) [cite: 1168]
Maximum voltage OUT ($V_{OUT_max}$): -18V to 18V (max. 40 h) [cite: 1168]
Maximum voltage on Rx & Tx ($V_{RxTx_max}$): -0.3V to 5.5V (max. 40 h) [cite: 1168]
Maximum voltage VCBuf ($V_{CBuf_max}$): -0.3V to 18V (max. 40 h) [cite: 1168]
Maximum pin-to-pin voltage difference ($V_{PP_max}$): 18V (for global pins) [cite: 1168]
Voltage peaks VDD ($V_{DD_peak}$): 28V (max. 50 µs, no current limitation) [cite: 1168]
Voltage peaks OUT ($V_{OUT}$): 28V (max. 50 µs, no current limitation) [cite: 1168]
Maximum current OUT pin (OUT_max): -80mA to 80mA (max. 1 h; current > 0 means short to GND, current < 0 means short to $V_{DD}$) [cite: 1168]
Maximum junction temperature ($T_{J_max}$): -40°C to 175°C (max. 1000 h at $T_{J}=175^{\circ}C$) [cite: 1168]
Storage & shipment temperature ($T_{storage}$): 5°C to 40°C (Relative humidity < 90%, storage time < 3 a) [cite: 1168]
- HBM ESD Immunity ($V_{HBM}$): +4 kV (for pins VDD, GND, OUT); +2 kV (for all pins except VDD, GND, OUT) [cite: 1180]
- CDM ESD immunity ($V_{CDM}$): $\pm$0.5 kV (for all pins except corner pins); $\pm$0.75 kV (for corner pins only) [cite: 1180]
Stray field robustness DC ($H_{EXT_DC}$): 5000 A/m (According to ISO 11452-8:2015) [cite: 1186]
Stray field robustness AC ($H_{EXT_AC}$): 1000 A/m (According to ISO 11452-8:2015) [cite: 1186]
Operating lifetime ($t_{op_life}$): 17000 h (max 1000 h at $T_{j_max}=175^{\circ}C$) [cite: 1191]
Total lifetime ($t_{tot_life}$): 15 years (additional 3 a storage time) [cite: 1191]
Ignition cycles ($N_{ignition}$): 200 to 1000x (during operating lifetime $t_{op_}$) [cite: 1191]
Operating supply voltage ($V_{DD}$): 4.4V to 6V [cite: 1205]
Programming supply voltage ($V_{PROG}$): 15.5V to 18V (Only required to perform a write-cycle) [cite: 1205]
Supply voltage slew rate ($V_{DD}$ slew): 0.1 V/s to $10^{8}$ V/s [cite: 1205]
Operating ambient temperature ($T_{A}$): -40°C to 150°C (max. 1000 h at $T_{A}=150^{\circ}C$) [cite: 1205]
Internal angular resolution (RES): 16 bit [cite: 1205]
Power-on time (tpon): 5 ms (Time until the sensor is ready for operation after start-up or reset) [cite: 1205]
Angle range ($\alpha$): 0°elec to 360°elec (Electrical angle range from one sin/cos coil period) [cite: 1205]
Differential angle range ($\Delta_{angle}$): 360° (Uniqueness depends on wings setup) [cite: 1205]
Internal clock tolerance ($\Delta f_{clock}$): $\pm$3.5% (including temperature and lifetime) [cite: 1205]
Max time to restore TX amplitude ($t_{restore}$): 5 ms (Only valid for redundant operation under the assumption that the faulty device is powered down) [cite: 1214]
Thermal resistance ($R_{thJA}$): 150 K/W (Junction to ambient; measured on 2s2p PCB board) [cite: 1226]
LC driver current ($I_{LC}$): 9.6 mA [cite: 1231]
Operating supply current ($I_{DD}$): 20 mA (Excluding LC coil driver current and output driver current) [cite: 1231]
ADC Integral non-linearity (INL): 10 $LSB_{16}$ to 200 $LSB_{16}$ [cite: 1247]
ADC Noise (RMS) (Noise): 1 $LSB_{16}$ (standard deviation: 10) [cite: 1247]
ADC Bandwidth (Bandwidth): 600 Hz [cite: 1247]
Output low level ($V_{OL}$): $0.2 \cdot V_{DD}$ (for $I_{sink}=4mA$) [cite: 1251]
Output high level ($V_{OH}$): $0.8 \cdot V_{DD}$ (for $I_{source}=4mA$) [cite: 1251]
Input low level ($V_{IL}$): $0.3 \cdot V_{DD}$ (valid in normal operating range) [cite: 1251]
Input high level ($V_{IH}$): $0.7 \cdot V_{DD}$ (valid in normal operating range) [cite: 1251]
Leakage current ($I_{leak}$): -40 $\mu$A to 40 $\mu$A [cite: 1251]
Resonance admittance ($G_{RLC}$): 0 mA/V to 6 mA/V (when $G_{RLC}$ maximum is reached, $A_{Tx}$ is allowed to drop below minimum value) [cite: 1260]
Inductance transmitter coil ($L_{Tx}$): 1 $\mu$H to 10 $\mu$H [cite: 1260]
Capacitance transmitter coil ($C_{Tx}$): 0.5 nF to 2.8 nF (Depending on used frequency and inductance) [cite: 1260]
Frequency transmitter coil ($f_{Tx}$): 3 MHz to 5.5 MHz (Excitation frequency resulting from inductance and capacitance) [cite: 1260]
Operating amplitude transmitter coil ($A_{Tx}$): 2.0 Vpp to 3 Vpp (Peak-to-peak; differential) [cite: 1270]
Relative amplitude transmitter coil ($A_{TX_}$): 1.14 V to 1.31 V (Relative amplitude; differential) [cite: 1270]
Transmitter coil regulation: Accuracy over temperature (LC_reg): -2% to 2% (The voltage amplitude variation of the external LC oscillator over temperature) [cite: 1270]
Q factor transmitter coil ($Q_{Tx}$): 10 to 20 (Temperature depending) [cite: 1270]
Frequency receiver coil ($f_{Rx}$): 3 MHz to 5.5 MHz [cite: 1270]
Amplitude receiver coil ($A_{Rx}$): 5 mVpp to 100 mVpp (Peak-to-peak; differential) [cite: 1270]
Asymmetry caused by receiver ($A_{Asym}$): 2 mV (Measured in absence of rotor) [cite: 1270]
LC driver current range ($I_{LC}$): 0.2 mA to 6 mA [cite: 1270]
Undervoltage detection on VDD ($V_{UV}$): 3.8V to 4.4V (in case of an undervoltage the device disables the output) [cite: 1275]
Overvoltage detection on VDD ($V_{OV}$): 6V to 7.5V (in an overvoltage condition the device disables the output) [cite: 1275]
Overvoltage detection on OUT ($V_{OV_OUT}$): 6V to 10V (in an overvoltage condition the output switches to High-Z) [cite: 1275]
Undervoltage reset time ($t_{UV}$): 50 $\mu$s (Time below threshold for the sensor to initiate a safe reaction) [cite: 1275]
Overvoltage recovery time ($t_{ov}$): 50 $\mu$s (Time after overvoltage condition to enable protocol output) [cite: 1275]
Microbreak immunity ($t_{MB}$): 5 $\mu$s (Min. value is only applicable if no boundary conditions are applied) [cite: 1275]
Line capacitor ($C_{L}$): 1 nF to 3.9 nF (Including external circuit and cable) [cite: 1307]
Supply capacitance ($C_{S}$): 70 nF to 150 nF (Related to EMC requirements) [cite: 1307]
Buffer capacitance ($C_{Buf}$): 70 nF to 150 nF (Related to EMC requirements) [cite: 1307]
Pull-Up resistor SENT ($R_{P}$): 10 K$\Omega$ to 55 K$\Omega$ [cite: 1307]
Pull-Up resistor SPC ($R_{P}$): 1.45 K$\Omega$ to 10 K$\Omega$ [cite: 1307]
EMC Filter on Rx pins ($CO_{A}$ to $C3_{B}$): 250 pF (Depending on application EMC requirements) [cite: 1307]
Tank capacitor ($C_{L1}$, $C_{12}$): 1 nF to 5.6 nF (Related to $C_{Tx}$) [cite: 1307]
SENT Unit time (UT): 1.0 $\mu$s to 3.0 $\mu$s (Tolerance given by clock tolerance) [cite: 1337]
SENT Low time ($t_{low}$): 3 UT to 5 UT (Including the fall time of the edge) [cite: 1337]
SENT Pause pulse: 0 to 1 (0: Disable, 1: Enable) [cite: 1337]
SENT Status nibble in CRC: 0 to 1 (0: Disable, 1: Enable) [cite: 1337]
SENT Rolling counter: 0 to 1 (0: Disable, 1: Enable) [cite: 1337]
SPC Unit time (UT): 1.0 $\mu$s to 3.0 $\mu$s (Tolerance given by clock tolerance) [cite: 1503]
SPC Low time ($t_{low}$): 3 UT to 5 UT (Including the fall time of the edge) [cite: 1503]
SPC Rolling counter: 0 to 1 (0: Disable, 1: Enable) [cite: 1503]
SPC Bus mode: 0 to 1 (0: Disable, 1: Enable) [cite: 1503]
SPC Variable trigger length: 0 to 1 (0: Disable, 1: Enable) [cite: 1503]
Total trigger time (constant) ($t_{mtr}$): 85.5 UT to 94.5 UT (for constant trigger length) [cite: 1644]
Total trigger time (variable) ($t_{mt}$): ($t_{mlow}$ + 11.4) UT to ($t_{mlow}$ + 12.6) UT (for variable trigger length) [cite: 1644] - Master nibble low time (tmlow): 2 UT to 7 UT (Sync. mode enabled); 8 UT to 15 UT ($addr./ID=0$); 16 UT to 28 UT ($addr./ID=1$); 29 UT to 49 UT ($addr./ID=2$); 50 UT to 82 UT ($addr./ID=3$) [cite: 1661]
Programmer PWM period (T): 40 $\mu$s to 120 $\mu$s [cite: 1774]
Programmer low time to transmit “0” ($t_{1_0}$): $0.28 \cdot T$ to $0.38 \cdot T$ [cite: 1774]
Programmer low time to transmit “1” ($t_{1,1}$): $0.62 \cdot T$ to $0.72 \cdot T$ [cite: 1774]
Time difference between Programmer low and high level ($t_{4}$): $0.48 \cdot T$ to $0.88 \cdot T$ [cite: 1774]
Programmer-Sensor response time ($t_{r}$): 50% to 80% of $t_{4}$ [cite: 1774]
Programmer low pulse after PWM bit ($t_{3}$): $0.07 \cdot T$ to $0.2 \cdot T$ [cite: 1774]
Interface reset time ($T_{Res}$): 1.7 ms to 5 ms [cite: 1774]
Input signal low level ($V_{low_in}$): $0.3 \cdot V_{DD}$ [cite: 1774]
Input signal high level ($V_{high_in}$): $0.7 \cdot V_{DD}$ [cite: 1774]
Output signal low level ($V_{low_out}$): $0.2 \cdot V_{DD}$ (for $I_{sink}=4mA$) [cite: 1774]
SICI line pull-up resistor ($R_{pu}$): 1.45 K$\Omega$ to 2 K$\Omega$ (Limited due to SPC/SENT input) [cite: 1774]
Pause between frames ($t_{pause}$): 5 $\mu$s (time between frames to ensure correct processing) [cite: 1778]
Time window for activation of programming interface ($t_{activate}$): 4500 $\mu$s (time after power-up of the sensor to enter the programming mode with the command) [cite: 1778]
Duration of the CMTP programming pulse ($t_{prog_pause}$): 1 ms [cite: 1789]