PRODUCT INFORMATION April/2021 CUR 4000 CUR 4000 Flexible Multi-Hall-Array Sensor for High-Precision Current Sensing The CUR 4000 is a single-axis contactless Current sensing modules equipped with the ASIL-B ready (SEooC according to magnetic-field sensor for galvanically iso- CUR 4000 can be programmed directly in- ISO 26262) lated DC and AC current measurements circuit by a microcontroller via SPI interface. Signal bandwidth up to 8 kHz and can be used in high-voltage battery Programmable linearization with 33 equi- monitoring systems of hybrid and electric CUR 4000 is defined as ASIL-B ready distant or 17 variable setpoints vehicles (xEV). SEooC (Safety Element out of Context) according to ISO 26262. Programmable adjustment and tempera- A flexible Multi-Hall-Array allows linear or ture compensation for gain and offset differential magnetic-field sensing for con- Major characteristics like gain and offset, Low-power mode with wake-up function- tactless and precise current sensing up to etc. can be adjusted to the magnetic cir- ality 2000 A. cuitry by programming the non-volatile memory. The device is qualified according SPI interface for calibration, test, and CUR 4000 can be used for different module to AEC-Q100-Rev-H and is designed for debugging via microcontroller concepts like core-based or coreless. In the automotive applications with operation in an Digital 16-bit readout of magnetic-field linear modes of CUR 4000, a configurable ambient temperature range (T ) of 40 C A information via SPI (up to 5 MHz) array of Hall elements enables highly accu- up to +150 C. rate measurements for core-based stray- 100 mT magnetic-field range field robust sensor-module designs. The dif- CUR 4000 is available in a small eight-pin Operates from 40 C up to 150 C (T ) A ferential mode enables small coreless and SOIC8 SMD package. Operates from 3.0 V up to 5.5 V stray-field robust system designs without shields. Features Programmable clamping threshold Over-/undervoltage detection on VSUP Read-out of the complete Hall array pro- Non-intrusive, galvanically isolated con- vides an output-offset temperature-drift tactless current measurement Overtemperature supervision below 0.05 percent full scale. Further- High-precision, linear magnetic field Reverse-/overvoltage protection at more, the sensor delivers a hysteresis-free sensing with flexible Hall plates array for VSUP output signal. A non-linearity error of core-based current sensing 0.2 percent and a noise performance of Magnetic-field-out-of-range detection 0.005 percent full scale allows precise cur- Differential magnetic-field (stray-field SOIC8 SMD package rent measurements with a signal bandwidth compensated) coreless current sensing of up to 8 kHz. Qualified according to AEC-Q100-Rev-H without shields PRODUCT INFORMATION April/2021 CUR 4000 Application Examples Battery monitoring Battery disconnect unit Output VSUP Oscillator Protection Stationary battery management Circuit Protection Voltage DSP Circuit Regulator A Flexible FW D Hall-plate A Development Tools Array D SPI SPI A Micro- D CUR 4000 can be programmed and cali- controller brated via SPI during the final manufactur- A Programming ing process by adjusting the output signals D Interface Flexible FW directly to the input signal. Temperature Sensor TDK-Micronas offers an easy-to-use evalu- Wake-up WAK/IO GND Memory ation kit for engineering. TDK SPI Programmer V1.x TDK extension board TM LabVIEW programming software for Fig. 1: Block diagram of the CUR 4000 Windows including Sub VIs CUR 4000 Versions Type Measurement CUR4000DJ0000 Linear (Multi Hall Plates) CUR4000DJ0001 Differential or Linear (Dual Hall Plates) Fig. 2: Sensor application setup All information and data contained in this product information are without any commitment, are not to be consid- No part of this publication may be reproduced, ered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. Product or photocopied, stored on a retrieval system, or transmit- development sample availability and delivery are exclusively subject to our respective order confirmation form. By ted without the express written consent of this publication, TDK-Micronas GmbH does not assume responsibility for patent infringements or other rights of TDK-Micronas GmbH. third parties which may result from its use. Edition April 19, 2021 Order No. PI000169 001EN TDK-Micronas GmbH Hans-Bunte-Strasse 19 D-79108 Freiburg (Germany) P.O. Box 840 D-79008 Freiburg (Germany) Tel. +49-761-517-0 Fax +49-761-517-2174www.micronas.tdk.com