CURRENT SENSOR ANALOG OUTPUT GMR CURRENT SENSOR CSC-1U Coreless & High Accuracy High accuracy current sensor is realized by highly sensitive GMR LINEARITY RESPONSE BANDWIDTH CURRENT CONSUMPTION Configuration of current sensor can be simplified with this coreless design. 0.05% 1µSEC 400kHz 6mA elements which are used in e-compass. Key Features A Applications Coreless magnetic balanced current sensor Motor Controller : General Inverter, A/C, Electric Tool Less temperature drifts (offset & sensitivity) DC Electricity Controller : UPS, Power Conditioner Ratiometric or fixed amplitude is selectable Electricity Measurement : Power Meter, EMS, Power Conditioner Adjustable sensitivity Improving Power Factor : General Inverter, A/C, UPS BLOCK DIAGRAM PACKAGE 5.22 1.55 3.65 0.914 1.442 0.73 14.3 GMR Bandgap Reference VREF R Primary current R VSS VDD OUT Sensitivity Calibration – + Current base Ratiometric Sensitivity Calibration Magnetic field:-Bx GMR GMR GMR Fuse ROM Test Circuit VREF VREF – VREF – Busbar YAS583 + Primary current Low Dropout Regulator + Magnetic field:+Bx 4.53 1.27 0.38 3.81 0.381 PBAS538B-101-01-e CURRENT SENSOR ANALOG OUTPUT GMR CURRENT SENSOR Coreless Design Small & light current sensor can be realized by coreless & simple design. Conventional sensor YAS538 High Accuracy Highly accurate linearity is realized by magnetic balanced operation of high sensitivity GMR elements. YAS538 Open Loop VOUT MEASURE CORE VOUT MEASURE IDEAL IDEAL IBUS IBUS Coreless design minimizes the number of components Best in class linearity is realized Small & light current sensor can be realized Linearity:0.05%FS Improvement in Temperature Drifts Temperature drifts of offset and Sensitivity are reduced by proprietary circuit design. Offset (mV) Low Current Consumption Low current consumption is realized by designing less dependency to the amount of primary electric current. Temperature Sensivitity (%) A Temperature Temperature drifts related error is reduced Busbar electric current 0A : 6mA Offset temperature drift : ±6.0mV (TBD) Busbar electric current 50A : 16mA Sensitivity temperature drift : ±1.0% When busbar is designed in designated layout Rated Input Magnetic Field 1.0 mT(max) Frequency Characteristic 400 kHz （typ） Magnetic Field Sensitivity 2.0 V/mT(typ) Response Time 1.0 μs （typ） Linearity 0.05 %FS（max） Current Consumption 6 mA （typ） Semiconductor Div. 203 Matsunoki-jima, Iwata, Shizuoka 438-0192 Japan http://www.yamaha.co.jp/english/product/lsi/ Customer Service Head Quarter TEL : +81-539-62-4918 Shanghai Office TEL : +86-21-8017-2699 Seoul Office TEL : +82-2-3467-330 Taipei Office TEL : +886-2-7741-8888 • The content is subject to change without notice. • Unauthorized use of this document is prohibited. • These introductory informations cannot be used for designs. Check with us for technical ones. • Brand and product names used are trademarks of their respective holders. Created in June. 2015 Document Code ：PBAS538B-101-01-e