The TP65B110HRU bidirectional GaN switch from Renesas Electronics Corporation is a depletion-mode GaN power device designed for single-stage solar microinverters, AI data centers and onboard electric vehicle chargers. Rated for ±650V continuous AC and DC operation with ±800V transient capability, the device combines a high-voltage bidirectional GaN chip with two low-voltage silicon MOSFETs, offers 110 […]
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Interleaved PFC, HWLLC combo controller hits 96.5% efficiency, 3W/cc
The RRW11011, RRW30120, RRW40120 and RRW43110 from Renesas Electronics Corporation are GaN-based control and power devices for a Half-Wave LLC AC/DC platform designed to support 500W and higher power conversion in IoT, industrial and infrastructure systems. The platform supports output ranges from 5V to 48V for applications such as USB Extended Power Range charging, power […]
Renesas expands GaN portfolio to cover 1 V to 650 V+ range with EPC technology license
Efficient Power Conversion (EPC) has entered a licensing agreement with Renesas Electronics for EPC’s low-voltage enhancement-mode gallium nitride (eGaN) technology. Renesas will establish internal wafer fabrication for these devices and second-source select EPC GaN products currently in mass production. The agreement addresses supply-chain concerns by creating an additional qualified manufacturer for existing EPC devices. Over […]
Renesas subsidiary acquires GaN technology company,Transphorm
Renesas Electronics Corporation and Transphorm, Inc. today announced that they have entered into a definitive agreement pursuant to which a subsidiary of Renesas will acquire the GaN . The acquisition will provide Renesas with in-house GaN technology, a key next-generation material for power semiconductors, expanding its reach into fast-growing markets such as EVs, computing (data […]
Bidirectional buck-boost, dual-phase buck DC/DC controllers handle 48-V apps
The ISL81801 buck-boost controller acts as a “UPS on a chip” by enabling bidirectional current flow (forward or reverse) using constant-voltage and constant-current regulation. This allows a battery or supercapacitor to be charged and discharged using a single controller and power path. The ISL81801’s combination of the industry’s highest 80V buck-boost switching frequency (600 kHz) […]
Buck-boost regulator features ultra-low quiescent current
Renesas Electronics Corporation introduced the ISL9122A, a flexible buck-boost switching regulator with bypass mode that provides ultra-low quiescent current (IQ) for powering sensors, microcontrollers (MCUs), wireless devices, and other system components. Operating with battery output from 1.8V to 5.5V, the ISL9122A extends the battery life of smart IoT devices powered by coin-cell, lithium, and multiple […]
Improve automobile battery life with the right chemistry
by Theju Bernard, Intersil, a Renesas Company The automotive industry is quickly moving toward more electrification. The deployment of start-stop systems, emergency call (eCall) telematics, and hybrid vehicles is fueling the need for advanced battery management systems that not only charge the battery in a safe manner but also prolong its useful life. There are […]
PMIC delivers 91% efficiency at 1.1 V output voltage for space/power constrained systems
Intersil, a subsidiary of Renesas Electronics Corporation, introduced a highly integrated programmable power management IC (PMIC) that delivers 91% efficiency at 1.1V output voltage for application processors, GPUs, FPGAs and high-performance system power. The new PMIC’s low RDS(on) MOSFETs and programmable PWM frequency allows designers to use fewer low-profile external components, enabling a 50mm2 power-supply […]
Synchronous buck regulators and overcurrent protection (OCP)
by Haifeng Fan, Intersil, a subsidiary of Renesas Electronics Synchronous buck regulators are widely used in industrial and infrastructure applications to step down 12V rails to point-of-load inputs as low as 0.6V for microcontrollers, FPGAs, memory and peripheral I/Os. Overcurrent protection (OCP) is essential to protect these switching regulators from damage by excessive current. Cycle-by-cycle current […]
Avoiding mobile device brownouts
By Chuck Wong, Intersil, a Renesas Company With the ever-increasing performance of mobile application processors and GPUs, the need for a buck-boost regulator to stabilize the Li-ion battery supply-voltage terminals is becoming more and more important. Buck-boost regulators prevent brownout (a condition where power is briefly lost) by boosting the supply voltage during the notching […]
