This complete resolution ensures correct present detection for varied purposes, enhancing trade 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 automobiles (EVs) and hybrid electrical automobiles (HEVs), there’s a rising requirement for present sensors able to dealing with bigger spans whereas sustaining excessive accuracy. Reaching correct measurements over three many years, starting from milliamps to 1000’s of amps presents a major problem as a result of substantial noise inherent in such techniques. Nonetheless, 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 embody 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 beneath 20A and maintains lower than 0.05% FSR accuracy for currents starting from 20A to 1500A. Even beneath tougher circumstances at 50°C, the design ensures accuracy ranges of 0.1% FSR for currents beneath 20A and 0.25% FSR for currents from 20A to 1500A. This versatility allows 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 purposes span varied industries, primarily specializing in the automotive and industrial sectors. In automotive purposes, it finds utility in vital parts reminiscent of battery junction bins, 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 commercial 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 gear, and X-ray dynamic and static detectors.Â
TI has examined this reference design with a invoice of supplies (BOM), schematics, and different information. The corporate’s web site has further information in regards to the reference design. To learn extra about this reference design, click on right here.