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1 week ago | 
electronicsweekly.com | Steve Bush
Inside is a pair of mosfet-like devices with a sharp ‘knee’ in their voltage-current characteristic. As such, they are not literally balancing, but are clamping against over-voltage and passing spare current to the other cell. Called ALD910030, “this dual mosfet provides auto-balancing capabilities and power management for supercapacitors ranging from 2.8V to 3.3V”, said ALD. It “uses virtually no power for cell balancing and prevents most catastrophic failures”.
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1 week ago | 
electronicsweekly.com | Steve Bush
Called PWY0150S, it will has a minimum capacity of 150µAh and a nominal 2.3V terminal voltage – actual charge-discharge range is 2.7 to 1.5V, and nominal charging is constant voltage at 2.7V. Cycle life, charged and discharged at 1C (150µA), is 1,000 cycles to 100µAh at 25°C and 100% depth of discharge, the company told Electronics Weekly, however it is not intended for such use, but rather the bursty load of a periodic transmitter.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
Dubbed MLX90642, it comes in a 9.3mm diameter four-lead TO39 through-hole package in two versions: a squat (5.7mm tall) 110° x 75° wide-view type (BCA suffix) and a taller (11.9mm) 45° x 35° narrow-view version (BCB). The company emphasises signal-to-noise ratio, which the data sheet reveals to be, loosely, 0.1C for the wide view type and a little better for the narrow version.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
RS7E200BG is a 30V mosfet optimised for both secondary-side ac-dc conversion and hot-swap controllers in 12V enterprise server power supplies. RS7N200BH is an 80V mosfet optimised for secondary ac-dc conversion in 48V server power supplies, as is RS7N160BH. “The DFN5060-8S package increases the internal die size area by approximately 65% compared to the conventional 5 x 6mm HSOP8 package,” said Rohm.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
Each logic element can simulate AND, OR, NAND or NOR gate, a buffer or inverting buffer, a D or JK flip-flop, multiplexers or a four-input look-up table. It is called the CLB (configurable logic block) and it based on an earlier simpler Microchip peripheral called the CLC (configurable logic cell). “Building on over a decade of experience with the CLC, Microchip has evolved its customisable logic offering with the CLB to enable more complex hardware-based functions.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
“The bus transceivers support level-up and level-down voltage translation from either of their dual power supplies in bidirectional communication systems using signal voltages between 0.8V and 3.6V,” said Toshiba. “These devices have been designed without any restrictions on the on-off sequencing of power supply terminals Vcca and Vccb.”For UART data level shifting, 74AVC4T245FT has four bidirectional level shift circuits in two pairs.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
Automotive applications are envisaged, include infotainment rotary and push selectors, gear shifts, door handles and powered seat adjusters, it said. AH4930Q, as it will be known, comes in a ~3 x 3 x 1.5mm SOT-26 package and includes three sensors to detect a magnetic field in X, Y and Z directions. AH4930 is a related part for industrial and commercial applications. Inside, a 12bit ADC converts X, Y and Z readings into digital data.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
The first current sensor, ACS37630, is designed to be sat on top of a bus bar and partly surrounded by a U-core magnetic field concentrator. “Its vertical Hall technology enables sensing parallel to the package surface, ideal for system integration with U-core magnets,” accordig to the company. “This contactless non-invasive current sensing solution eliminates the need for C-core magnets.”Bandwidth is up to 250kHz) and 1.6µs is the typical output response time.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
Called Type4-23 (also FM01202CCB04A), it is electrically similar to the company’s existing Type1-23 in that it is 2P12S (24 cells in two parallel 12 series arrangement) module, but the earlier versions resin baseplate has been replaced by aluminium to improve heat extraction. “When used with the same cooling system and under typical operating conditions, heat dissipation is approximately double that of current modules, significantly extending battery life,” according to the company.
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2 weeks ago | 
electronicsweekly.com | Steve Bush
“All components are rated for 300Arms. EC-LCL1200B-350 [is] a heavy-duty LCL electric filter specifically designed for off-highway applications,” according to the company. “Applications include drilling equipment, material handling equipment and tethered excavators.”It is suited to both 50 and 60Hz operation, protected by IP6K9K and IP67 sealing, and can be used across -40 to +85°C and up to 4,000m altitude. Liquid cooling is required at a minimum of 20 litre/min and maximum of +65°C.
