April/May 2023
www.us -
tech.com
Page 81 ROHM: New Current Sense Amplifier ICs
SANTA CLARA, CA — ROHM Semicon - ductor today announced the BD1421x-LA series of space-saving, high accuracy current sense amplifier ICs for industrial (e.g., wire- less base stations, PLCs, inverters) and con- sumer applications (e.g., home appliances). For years, the demand for current sens-
ing has been increasing in several applica- tions. For example, high accuracy current sensing is required to improve motor rotation efficiency and to detect abnormalities. At the same time, smaller mounting area is required. However, conventional configura- tions (operational amplifier + discrete compo- nents) generally face challenges such as dete- rioration of current sensing accuracy due to variations in component accuracy and tem- perature characteristics. Also, it is difficult to keep the mounting area small. In response, ROHM lever-
aged its strengths in analog tech- nology to develop a new series of current sense amplifier ICs that achieves high accuracy current sensing in a space-saving design. The BD14210G-LA incorporates all required peripheral compo- nents, which simplifies current sensing by connecting a shunt resistor and a bypass capacitor. This reduces the number of com- ponents from eleven to just three compared to conventional config- urations (operational amplifier + discrete components).
Teledyne Introduces 4K 3D Laser Line
Profile Sensor WATERLOO, ONTARIO, CAN - A DA — Teledyne DALSA has introduced its Z-Trak™ LP2C 3D profile sensor family for inline 3D measurement and inspection applications. As the latest mem- ber of the Z-Trak family, the LP2C 4K sensors deliver 4,096 samples per profile and an x res- olution down to 3.5 microns, allowing customers to measure and inspect parts with tighter tolerances, and to identify small- er defects cost effectively. Ready to use straight out of
the box, Teledyne’s Z-Trak LP2C 4K sensors are factory calibrated and combine high scanning speeds with easy-to-use software tools, delivering highly repeat- able and accurate height, width, and length measurements. With its compact size and simplified cabling, Z-Trak LP2C is ideal for applications in battery, automo- tive, factory automation, robot-
ics, and logistics markets. Contact: Teledyne, 605
McMurray Road, Waterloo,
Ontario N2V 2E9, Canada % 519-886-6000 E-mail:
jessica.broom@
teledyne.com Web:
www.teledyne.com
See at PCIM, Hall 7 Booth 266 See at PCIM, Hall 7 Booth 108 and at EDS
Furthermore, it decreases the mounting area by 46% (SSOP6 package). Additionally,
a highly accurate current detection of ±1% has been achieved over the entire tempera- ture range. The internal circuitry prevents current detection accuracy to decrease even when an external RC filter circuit for noise suppression is added. That minimizes the number of manhours required for design. The wide input voltage range (–0.2 to +26V) makes the BD14210G-LA ideal for current sensing applications operating from 12V/24V
power supplies. Contact: ROHM Semiconductor USA,
2323 Owen Street, Santa Clara, CA 95054 % 858-625-3600
BD1421x-LA series current sense amplifier ICs.
E-mail:
tmoench@rohmsemiconductor.com Web:
www.rohmsemiconductor.com
See at PCIM, Hall 9 Booth 310
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