STMicroelectronics has released a silicon carbide T-switch module for three-level dc-dc converter topologies (right), and also a single-phase full-bridge. Both are rated at 1.2kV, 75A and contain four of the company’s second-generation 13mΩ SiC mosfets, in its 48 x 57mm Acepack power package which can be press-fitted or soldered. The package (left) has Cu-Al2O3-Cu substrates for good thermal conductivity. Junction ...
Analogue and Discretes
Digital pots interface directly with quadrature encoders, push buttons and MCUs
LSI Computer Systems (LSI/CSI) has created a family of 63 tap (6bit) digital potentiometers for direct connection to quadrature decoders, push buttons, GPIOs or SPI serial controls. Debounce circuits are included where electromechanical switches are expected, although external pull-up resistors must be added. “The LSI/CSI digital potentiometers are used as replacements for mechanical potentiometers and for potentiometer adjustments,” according to distributor Omni ...
DMASS reports leap in semiconductor distribution but warns of shortages
The European components distribution market is feeling chipper today, as DMASS (European Semiconductor Distribution) reports a jump in sales of 31.8% in semiconductors in Q3 and 44.7% for interconnect, passive and electromechanical (IPE) components. DMASS reported Q3 distribution revenue for semiconductors of €2.46bn and €1.13bn for IPE distribution sales. The combined members of DMASS, covering nearly 80% of European components’ ...
100V mosfet relay leaks only 1pA at 80V
Omron has released 100V and 800mA versions of its low-leakage ‘T-configuration’ mosfet relay modules. “T-modules offer the reliability and durability of solid state relays combined with an exceptionally low leakage current of just 1pA or less, allowing their use in measurement and other applications where mechanical relays have previously been preferred,” according to the company. G3VM-101MT handles 100V and 550mA, and G3VM-61MT ...
Surface mount clock oscillators survive 3,000G
Surface mount frequency oscillators manufactured in the UK by Euroquartz are capable of surviving up to 3,000G shock and operate in the extended industrial temperature range. Frequency control specialist, Euroquartz is to launch a new range of UK manufactured surface mount clock oscillators capable of up to 3000G shock survivability with extended industrial temperature range. The EQXO-75UIE oscillator series is manufactured in ...
12bit 1.6Gsample/s quad ADC qualified for space use
Teledyne has qualified its four channel 12bit 1.6Gsample/s EV12AQ600 ADC for space use, describing it as “industry’s first four-channel analogue-to-digital converter to be qualified for space deployment”. It now meets NASA and ESA requirements, complying with MIL-PRF-38535 (QML-Y) and ESCC 9000. The most recent testing was to evaluate total ionising dose (TID) tolerance, where it scored 150kRad. “It means that [customers] ...
22MHz precision dual op-amp draws 3.4mA
Barely three months after its last new precision op-amp, STMicroelectronics has released another, this time with a gain-bandwidth of 22MHz, a slew rate of 11V/μs and a maximum input-offset voltage of 200µV (50µV typical at 25°C). Called TSV7722, it is aimed at high-speed signal conditioning and accurate current measurement in power-conversion circuits and optical sensors. Input noise density of is 7nV/√Hz, ...
Active diodes for bridge rectifiers cut that pesky 0.6V drop
Alpha and Omega Semiconductor has announced a family of active diodes which can reduce the 1.2V forward drop of 600V bridge rectifiers. Branded AlphaZBL, the first two parts are: AOZ7200 in SOT-23 for external mosfets (right) AOZ7270 in DFN 5×7 with internal 600V 190mΩ super-junction mosfet (below) “Both products are self-powered from the AC line and do not require external ...
650V drivers for mosfet half-bridges
Infineon has used a silicon-on-insulator process to create a pair of fast 650V half-bridge drivers on small-outline packages for its EiceDriver portfolio. 2ED2110 (images below) is a ±2.5A driver in 16pin DSO-16W packaging 2ED2101 (and ..03, ..04, image above) are +290mA -700mA drivers in 8pin DSO-8 packaging The company emphasises transient immunity for all devices: They have “as excellent ruggedness ...
Diodes reveals its first precision op-amp, and it is micro-power
Diodes has entered the precision low-voltage low-power op-amp fray with a dual-channel 8μV(typ) input offset voltage device consuming 12μA quiescent per amplifier. AS2333, as it will be known, uses chopper stabilisation which reduces drift over time and temperature. Update: Diodes automotive-qualified this part in 2022 Operation is across 1.8V to 5.5V and -40°C to +125°C, and it has rail-to-rail inputs (100mV ...