Analogue / Linear / Mixed Signal ICs

Renesas is aiming at powering automotive cameras with an ISO-26262 compliant multi-rail regulator IC – qualified to AEC-Q100 Grade 1. RAA271082 has a primary high voltage synchronous buck regulator, two secondary low voltage synchronous buck regulators and a low voltage LDO regulator. It offers four over-voltage and under-voltage monitors, I2C communications, a configurable general-purpose open-drain I/O pin and a dedicated ...

Advanced Linear Devices has introduced an IC that will balance four supercapacitors connected in series – to help prevent any of them being damaged by over-volting as they charge. Like other balance ICs in the company’s range, it does not use op-amps and a voltage reference. Instead it has four precision-trimmed mosfets that act as shunt regulators when connected gate-to-drain. ...

Microchip is aiming at smart metering with a family of microcontrollers and a power-line communication modem IC. The processors, nominally the PIC32CXMT family, have one or two Arm Cortex-M4F cores – all get a 200MHz application processor, and some get a 240MHz metrology processing core. The PIC32CXMTSH version in particular (see diagram) gets an ‘energy metering analogue front-end’ (EMAFE) as ...

Diodes is aiming at items-to-be-powered with a pair of USB Type-C PD3.0 PPS sink controllers – one easier to use and one more flexible. Applications are foreseen in home appliances, portable LED lights, portable smart speakers and cordless power tools. Both devices have built-in application firmware that automatically carries out USB PD 3.0 (v1.2) negotiation with a compliant charger to ...

Analog Devices has introduced ADIN2299, a multi-protocol industrial 10/100Mbit/s Ethernet switch, designed to operate in a star, line or ring topologies. “The platform was pre-certified so that the field device can operate in any of the supported industrial Ethernet networks,” according to the company. “The module contains everything needed to participate in a EtherCat, Profinet real-time and isochronous real-time, EtherNet/IP ...

STMicroelectronics has added a 30MHz 50µV input offset dual device to its 5V op amp family. Called TSV782 and working down to 2V, allowing it to use the same power rail as low-voltage logic devices, and consumption is 3.3mA/channel – there is no shut-down pin to reduce this. Slew rate is 20V/µs, and TSV782 has maximum input bias is 300pA up ...

Diodes has used post-package trimming to hone a 25μV maximum offset 9.5nV√Hz (1kHz) noise dual op amp with 5.5MHz bandwidth. Called AS2376Q, the device is intended for filtering and control, particularly in automotive applications – it is qualified AEC-Q100 Grade 1 and has automotive-grade supporting PPAPs. Both input and output are rail-to-rail, and operation is over 2.2 to 5.5V (950μA ...

STMicroelectronics has used the ‘CAN FD Light’ protocol in a 32-channel automotive lighting controller. “With 32 regulated current sources, independently programmable from 1mA to 15mA, L99LDLH32 can drive individual pixels in external and interior lighting applications. Global dimming is also provided, with 8-bit resolution,” according to the company, whose data sheet said that it is particularly aimed at external rear ...

Alps Alpine is aiming at safety redundancy, particularly in vehicle power steering, with a pair of magnetic angle sensors on two separate die inside the same package, positioned to share the same external magnet. “Redundancy design is increasingly a requirement for automobile driving systems,” according to the company. “The use of multiple sensors was once the typical way of realising ...

Toshiba has introduced a smart gate drive photo-coupler with automatic recovery from some fault conditions. Capable of driving ±2.5A into an IGBT or mosfet gate, it is called TLP5222, and is a partner to the TLP5212 announced earlier this month, which needs a signal on the primary side to initiate recovery from fault conditions. “TLP5222 continuously monitors the mosfet drain-source ...