Driver

STMicroelectronics has made an eight-channel low-side driver for vehicles with extra functional safety hardware that “eases system-level ISO 26262 certification up to ASIL-B”, said the company. The nominal ratings of L9800, as it will be known, are: 12V power rail and 260mA per output. L9800 outputs can drive resistive, capacitive or inductive loads like relays, solenoids and LEDs,” said ST. ...

Nanotec has introduced a driver for stepper and brush-less dc (BLDC) motors with sensor-less closed-loop and field-oriented control (FOC). Intended for steppers from NEMA 14 to NEMA 34 and BLDC motors up to NEMA 23 “its sensor-less closed-loop control provides precise management of torque and speed”, according to the company. A additional ‘safe torque off’ (STO) function is in the ...

Diodes has introduced a 64Gtransfer/s PAM-4 intra-equipment range extender for PCIe 6.0 data busses, that is backwards-compatible with PCIe 5.0, 4.0 and 3.0. PI3EQX64904 is a four-differential-channel linear device with equalisation including tunable low and high-frequency and high-frequency zeros. “It optimises performance over a variety of physical media by reducing inter-symbol interference, correcting for known channel losses at the transmitter ...

Not known for making microcontrollers, Allegro Microsystems has picked a 40MHz Arm Cortex-M4 as the processing heart of a series of stand-alone three-phase automotive brushless motor driver ICs for rails up to 90V. The parts are: 60V motor, 5.0V I/O, 252kbyte flash A89211GEVSR 60V motor, 3.3V I/O, 128kbyte flash A89211GEVSR-A 90V motor, 5.0V I/O,  252kbyte flash A89212GEVSR 90V motor, 3.3V ...

Silanna Semiconductor has created a laser driver IC that can squeeze a 400W quad EEL (edge-emitting laser) module into 80mm2. SL2001 comes in a 14ball 1 x 3.5mm WLCSP (wafer-level chip-scale package) includes both a capacitor charging circuit and another block to dump that stored energy into the laser diode. Operating from a power source between 3 and 24V it ...

Toshiba has introduced an opto-isolated SiC gate driver, that includes an active Miller clamp to tame self-turn-on behaviour in the driven device. Named TLP5814H, it is a “gate driver photocoupler suitable for driving silicon carbide mosfets in industrial equipment like inverters, uninterruptible power supplies and photovoltaic inverters which experience harsh thermal environments”, according to the company. “The Miller clamp circuit ...

Mikroe has added a smart 85V 10A stepper motor driver to its range of interchangeable ‘Click’ boards. Called Power Step 2 Click, the board “is based on the powerSTEP01, a 1/128 microstepping controller from STMicroelectronics that integrates eight n-channel mosfets with ultra-low Rds(on)”, according to Mikroe. “It features a 5MHz SPI interface, multiple safety protections, and additional control pins for ...

Littelfuse has introduced a 200V half-bridge mosfet and IGBT driver with integrated cross-conduction protection logic, said the company. IXD2012NTR, as it will be known, is designed to drive n-channel mosfet gates that need between 10 and 20V, and can supply a minimum of 1.4A pull-up and 1.8A pull-down (both into short-circuits) from either output. Typical figures are 1.9 and 2.3A ...

Allegro MicroSystems today announced three ICs: two analogue current sensors and a motor driver for fans. 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,” according ...

Maxon has published a handbook about DC drive system selection. “The book includes a six-step flowchart, providing a clear path to select the drive system specific to application requirement,” said the company. “The chapters dedicated to each drive system component also offer the formulae required to select the right product at each stage. Illustrations and descriptions of the variables bring ...