LDC5071-Q1 Series
Automotive inductive position sensor AFE with sine/cosine interface
Manufacturer: Texas Instruments
Catalog
Automotive inductive position sensor AFE with sine/cosine interface
Key Features
• AEC-Q100 qualified with the following results:Device temperature grade 0: –40°C to +160°C ambient operating temperatureHigh resolution and accuracy of ≤ 1 degree at rotational speeds up to 480,000 RPMDifferential signal paths with sine and cosine outputs supporting a wide dynamic input rangeIntegrated analog front-end IC for contact-less, inductive position sensors for absolute rotary position from 0° to 360°Supports operation in harsh environments; immune to stray magnetic fields, dirt, and contaminationNo magnets requiredInput supply operating modes: 5 V and 3.3 VOperating current: 22 mA (maximum)Integrated LC oscillator in the 2.4-MHz to 5-MHz band to excite the inductive sensor coilDifferential output drivers with high-voltage protection and large capacitive load capabilityAutomatic and manual gain control to maximize dynamic range of output driversBuilt-in sensor and supply diagnosticsReverse voltage and overvoltage protection on input supply and output pins from –15 V to 30 VFor enhanced functional safety and diagnostics, seeLDC5072-Q1Supports redundant modePackage: TSSOP-16 (5.00 mm x 4.40 mm)AEC-Q100 qualified with the following results:Device temperature grade 0: –40°C to +160°C ambient operating temperatureHigh resolution and accuracy of ≤ 1 degree at rotational speeds up to 480,000 RPMDifferential signal paths with sine and cosine outputs supporting a wide dynamic input rangeIntegrated analog front-end IC for contact-less, inductive position sensors for absolute rotary position from 0° to 360°Supports operation in harsh environments; immune to stray magnetic fields, dirt, and contaminationNo magnets requiredInput supply operating modes: 5 V and 3.3 VOperating current: 22 mA (maximum)Integrated LC oscillator in the 2.4-MHz to 5-MHz band to excite the inductive sensor coilDifferential output drivers with high-voltage protection and large capacitive load capabilityAutomatic and manual gain control to maximize dynamic range of output driversBuilt-in sensor and supply diagnosticsReverse voltage and overvoltage protection on input supply and output pins from –15 V to 30 VFor enhanced functional safety and diagnostics, seeLDC5072-Q1Supports redundant modePackage: TSSOP-16 (5.00 mm x 4.40 mm)
Description
AI
LDC5071-Q1 is a high-speed and accurate inductive sensor used for measuring absolute linear and rotary position in automotive and industrial applications. The device is designed to interface to three inductive sensing coils that are typically on the printed circuit board. One of the coils is connected to the exciter circuit of the LDC5071-Q1 and acts as a transmitter, and the other two secondary coils are used as receivers. The transmitter coil induces a voltage in the secondary coils, which is a function of the conductive target above the sensor coils. The demodulated signals which are produced during LDC5071-Q1 operation are then provided through the differential signal path with sine and cosine outputs.
The LDC5071-Q1 has multiple supply options, 5-V or 3.3-V, to suit different design options and can be connected to a microcontroller to calculate the rotary angle. The manual and automatic gain control (AGC) of the LDC5071-Q1 can be used to control and maximize the dynamic range of the outputs.
The device offers robust protection features to support and monitor signals and overall device operation for a seamless systems protection. The LDC5071-Q1 supports overvoltage, reverse battery and current protection on short to high voltage on output pins. In addition, the device provides immunity against motor noise and can filter out-of-band low- and high-frequency noise.
LDC5071-Q1 is a high-speed and accurate inductive sensor used for measuring absolute linear and rotary position in automotive and industrial applications. The device is designed to interface to three inductive sensing coils that are typically on the printed circuit board. One of the coils is connected to the exciter circuit of the LDC5071-Q1 and acts as a transmitter, and the other two secondary coils are used as receivers. The transmitter coil induces a voltage in the secondary coils, which is a function of the conductive target above the sensor coils. The demodulated signals which are produced during LDC5071-Q1 operation are then provided through the differential signal path with sine and cosine outputs.
The LDC5071-Q1 has multiple supply options, 5-V or 3.3-V, to suit different design options and can be connected to a microcontroller to calculate the rotary angle. The manual and automatic gain control (AGC) of the LDC5071-Q1 can be used to control and maximize the dynamic range of the outputs.
The device offers robust protection features to support and monitor signals and overall device operation for a seamless systems protection. The LDC5071-Q1 supports overvoltage, reverse battery and current protection on short to high voltage on output pins. In addition, the device provides immunity against motor noise and can filter out-of-band low- and high-frequency noise.
