New-Tech Europe Magazine | Q3 2020

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least 200% lower than other magnetic current sensors, and a maximum full-scale offset drift of <0.1%, the devices provide the highest measurement accuracy and reliability across a wide range of current. Further, a 0.5% lifetime sensitivity drift, which is at least 100% lower than other magnetic current sensors, significantly reduces the performance degradation associated with system aging over time. Reduce maintenance with ultra-high accuracy Additionally, the ultra-high accuracy of the TMCS1100 (1%, maximum) and TMCS1101 (1.5%, maximum) eliminates the need for device calibration, which reduces equipment maintenance over time. The devices also provide typical linearity of 0.05%, which minimizes signal distortion and helps maintain accuracy across the extended industrial temperature range (-40°C to 125°C). Extend system lifetime with 3-kVrms isolation in an 8-pin SOIC package The high-quality construction of the TMCS1100 and TMCS1101 provides inherent galvanic isolation capable of delivering 3-kVrms of 60-second isolation per the Underwriters Laboratories (UL) 1577 standard for demanding environmental conditions in grid-connected or power systems. Both devices support a ±600- V lifetime working voltage – up to 40% higher than competitive devices in the same 8-pin SOIC package – and have been rigorously tested beyond industry- standard UL and VDE requirements for greater design margin and an extended device lifetime. Meet various design needs and reduce system cost with added flexibility The TMCS1100 requires an external voltage reference for differential measurement, enabling engineers to optimize their design to meet the most stringent performance goals. The TMCS1101, however, integrates the voltage reference, providing high performance in a pin-to-pin industry-standard implementation to simplify designs while reducing total cost. Package, availability and pricing The TMCS1100 and TMCS1101 are now available from TI and authorized distributors in an 8-pin small- outline integrated circuit (SOIC) package. Pricing for both sensors starts at US$1.50 in 1,000-unit quantities. Full and custom quantity reels are available on TI.com and through other channels. The TMCS1100EVM and TMCS1101EVM evaluation modules (EVMs) are available for purchase on TI.com for US$59.00 each. Multiple payment and shipping options are available on TI.com.

Toshiba Launches Constant-Current 2-Phase Stepping Motor Driver for Automotive Applications Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has launched the“TB9120AFTG,” a constant- current 2-phase stepping motor driver for automotive applications. The new IC outputs a sine-wave current using only a simple clock input interface, with no need for an advanced functional MCU or dedicated software. TB9120AFTG was developed as a successor to TB9120FTG, introduced in 2019 as Toshiba’s first automotive stepping motor driver, and provides improved noise resistance. TB9120AFTG incorporates DMOS FETs with low on-resistance (upper + lower = 0.8Ω (typ.)), which achieve a maximum current of 1.5A[1]. Both the DMOS FETs and the controller that generates micro-stepping sine waves (supporting up to 1/32 steps) are housed in a small QFN type package (6.0 mm x 6.0 mm). The new IC delivers an operating temperature range of -40 to 125℃, and meets AEC-Q100, a certified standard for electronic components for automotive applications. It is suited to a wide range of automotive general applications using stepping motors, such as adjustment of the projection position of heads-up displays, and in the expansion valves of refrigerant circuits. Key features General multipurpose specifications, especially for automotive applications DMOS FETs with low on-resistance (upper + lower = 0.8Ω (typ.)), which achieve a maximum current of 1.5 A. Built-in error detections with warning signal output function: Over-current detection, thermal shutdown, and load open. Housed in awettable flank VQFNpackage (6mm×6mm)

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