This complete resolution ensures correct present detection for numerous functions, enhancing business efficiency and reliability.
This reference design TIDA-03050 by Texas Devices addresses the necessity for exact present detection throughout a broad vary, from milliamperes to kiloamperes, utilizing a busbar-type shunt resistor. With the escalating demand for high-capacity batteries in electrical autos (EVs) and hybrid electrical autos (HEVs), there’s a rising requirement for present sensors able to dealing with bigger spans whereas sustaining excessive accuracy. Attaining correct measurements over three many years, starting from milliamps to hundreds of amps presents a major problem because of the substantial noise inherent in such techniques. Nevertheless, this design overcomes this impediment by integrating superior parts, together with a high-resolution analog-to-digital converter (ADC) and high-accuracy present shunt screens from TI.
Key options of this design embrace distinctive full-scale accuracy charges tailor-made to varied present ranges and working temperatures. At 25°C, it achieves a formidable 0.02% full-scale vary (FSR) accuracy for currents under 20A and maintains lower than 0.05% FSR accuracy for currents starting from 20A to 1500A. Even underneath more difficult situations at 50°C, the design ensures accuracy ranges of 0.1% FSR for currents under 20A and 0.25% FSR for currents from 20A to 1500A. This versatility permits the system to cater to a variety of present measurements, from 50mA to 1500A, with the added flexibility to configure for various present spans. Furthermore, the design helps each high-side and low-side sensing configurations and facilitates exact measurement of bi-directional currents inside the vary of -1500A to +1500A.
This reference design’s functions span numerous industries, primarily specializing in the automotive and industrial sectors. In automotive functions, it finds utility in important parts corresponding to battery junction packing containers, battery administration models, DC/DC converter techniques, electrical energy steering techniques (EPS), gas cell management models (FCCU), powertrain present sensors, and each wired and wi-fi high-voltage battery techniques. On the economic entrance, it serves in various capacities, together with battery packs with safety, gauge, and exterior communication capabilities, CT detector modules, multimodule batteries with CAN or daisy-chain configurations, PET demodulator modules, moveable ultrasound gadgets, in addition to premium and customary ultrasound tools, and X-ray dynamic and static detectors.Â
TI has examined this reference design with a invoice of supplies (BOM), schematics, and different knowledge. The corporate’s web site has extra knowledge concerning the reference design. To learn extra about this reference design, click on right here.