Analogue / Linear / Mixed Signal ICs

Infineon has introduced automotive high-side power switches for safety-critical circuits. ‘Load Guard 12V’ dual and single-channel are available with nominal current carrying of 2 or 3A, making four devices in total. Without the host MCU getting involved, a pad is provided (OCT in diagram right) for an RC network that can modify the level and timing of current limitation above ...

Rohm has developed four and six channel automotive LED drivers for 5 – 10in+ backlights behind displays and instrument clusters. The parts (table below) include 20,000:1 PWM dimming and dc dimming in a way which “eliminates flickering when changing display brightness from low to high”, according to the company. Switching can be between 200kHz and 2.4MHz, and operation is over ...

At APEC in Florida, Texas Instruments introduced a family of ICs designed to shrink the size of EMC anti-emission common-mode filters in single and three-phase mains and automotive power converters. In principal, the ICs implement a capacitance multiplier circuit to emulate the Y-capacitors in a conventional passive filter design. They do while sitting amongst smaller filter inductors and capacitors (top ...

For Li-ion battery packs up to 25V, STMicroelectronics has introduced an IC for monitoring, balancing and protection, aiming at cordless power tools, back-up energy storage and medical devices. Called L9961, its “built-in features include a dual pre-driver for controlling battery-pack safety relays, which can be programmed for high-side and low-side connection”, said ST. “An embedded non-volatile memory for configuration data ...

Diodes has introduced AP7387Q, an LDO linear voltage regulator with a 5V to 60V input range and typically 700mV at a 100mA output current. “Thanks to its wide input voltage, the AP7387Q meets the load dump specifications of 12V internal combustion engine vehicles such as cars and 24V combustion engine vehicles such as buses, coaches, and trucks”, the company said. ...

TI announced a co-packaged 650V GaN half bridge and driver at APEC in Florida this week, intended for use in active-clamp fly-back dc-dc converters delivering less that 75W. Called LMG2610, the IC includes a pair of GaN transistors in a half-bridge, gate drivers, a bootstrap diode and a high-side gate-drive level shifter, all in a  9 x 7mm QFN package. ...

Power Integrations is aiming at industrial and automotive power supplies up to 100W, by building 900V GaN transistors into its InnoSwitch3 fly-back switcher family – something it announced at APEC in Florida. Previously 750V was the highest rating amongst the GaN members of this family. There are two product lines now with 900V gallium nitride options: The AEC-Q100-qualified InnoSwitch3-AQ family ...

Rohm has announced a high-side current sensor with a -0.2 to +26V input common-mode range and ±1.0% maximum gain error. Packaged in a 2.9 x 2.8 x 1.25mm SSOP6, BD14210G-LA senses voltage across an external high-side resistor and transfers this to a voltage relative to the 0V rail with a fixed gain of 20. Max offset is ±0.6mV (refered to ...

While the global semiconductor industry is in turmoil these days, one Japanese company is rapidly increasing its presence in the industry, under strong leadership. That company is ABLIC Inc., an analog semiconductor specialist. Its uniqueness stems from the fact that in its early beginnings before it was named ‘ABLIC’, the company’s specialized craftsmanship was born in the semiconductor department of ...

Analogue devices has created a fast-responding low-noise low drop-out linear regulator, digitally-programmable to output various voltages between 500mV and 4.2V at up to 3A. Input range is 600mV to 5.5V. Dubbed LT3073, its output, set through three tri-level pads, can be: in 50mV increments from 500mV to 1.2V, in 100mV increments from 1.2 to 1.8V, and then 2, 2.5, 3, ...