Electronic Design's Power Products of the Week (10/15-10/21)

EPC is featuring two new demonstration kits: the EPC9127, a complete wireless power kit including a 10 W class 2 amplifier and a receiver device; and the EPC9128 with a 16 W class 3 amplifier and two receiver devices. Operating at 6.78 MHz, the AirFuel Alliance compliant kits help simplify the evaluation process when using eGaN FETs and ICs for efficient wireless power transfer.

The EPC9127 system consists of three boards: EPC9510 source board, 10 W Class 2 source coil, and EPC9513 Category 3 (5 V, 5 W) receiving device. The EPC9128 consists of four boards: EPC9509 source board, 16 W Class 3 source coil, EPC9513, and EPC9515 Category 4 (5 V, 10 W) receiving device.

The source boards, also available separately as EPC9509 and EPC9510, are highly efficient ZVS Class-D amplifiers configured in an optional half-bridge topology or default full-bridge topology, and include gate driver(s), oscillator and feedback controller.

EPC9127 and EPC9128 wireless power transfer demonstration systems are priced at $907.20 each. The EPC9513 and EPC9115 receiver devices can also be purchased separately and are priced at $168.75 each.

Toshiba (TAEC) is now shipping two new photocouplers for high-speed communications, the TLP2767 and TLP2367. Housed in 2.3 mm (max) low-height packages and meeting various international safety standards, including UL1577 and EN60747-5-5, they are designed for applications such as PLCs, I/O boards, PV inverters, and factory automation inverters. With maximum propagation delay times of 20 ns, pulse width distortions of 8 ns, and propagation delay skews of ±10 ns, the photocouplers can be used to reduce the dead time of various interfaces. The devices also integrate high output infrared LEDs that reduce threshold input current and a CMOS fabricated photo detector IC that reduces supply current.

The TLP2767, in SO6L package, provides 50 Mbps, 5,000 Vrms (min) isolation voltage, 8 mm of creepage/ clearance distance, and 0.4 mm isolation thickness. The TLP2367, available in 5-pin SO6, provides 5 mm (min) of creepage/ clearance distance and 3,750 Vrms isolation voltage. Both products contribute to lowering the operation voltage of equipment with supply voltage of 2.7 V to 5.5 V, at temperatures up to 125°C.

MINMAX’ high performance MOWI20C, MQI40C and MRWI60C families of 20, 40 and 60 watt dc/dc converters, featuring 4:1 input range in a chassis-mount package with terminal strip connections and optional DIN Rail mounting, eliminate the power board requirement in field applications.

Each family consists of 8 models with input ranges of 9~36 and 18-75 VIN, and 4 output models of 5.1, 12, 24 or 48 VOUT. Each unit features: remote on/off control; 2,500 Vdc I/O isolation; high efficiency up to 91%; very wide convection-cooled operating temperature; tightly regulated output; faster start-up time, no minimum load requirement; built-in EMC filter to comply with EMI EN55032 Class A and EMS per EN61000-4-2,3,4,5,6,8 without external filtering; and abnormal operation protection with under-voltage, over-load and short-circuit protections. All families have been qualified per the CB scheme with safety approvals to UL/cUL/IEC/EN 60950-1.

Models are in stock and available for immediate evaluation.

The ISL8215M, Intersil’s first 42 V single-channel dc/dc step-down power module, delivers up to 15 A of continuous current and operates from a single input voltage range that includes industry standard 12, 18 and 24 volt intermediate bus power rails. The module offers adjustable output voltages from 0.6 V to 12 V, and provides 60 mA/mm2 power density. Its 96.5% peak efficiency drives POL conversions for FPGAs, DSPs and MCUs in industrial, medical, RF communications, after-market automotive, and portable equipment that use Li-ion batteries.

The complete dc-to-dc power supply includes a controller, MOSFETs, inductor, and passive components inside a single encapsulated package. Components are mounted to a copper lead-frame structure that allows the module to operate at full load over a wide temperature range with no airflow or heatsinks. Transient response and loop stability are improved while 40 ns typical minimum on time allows single-step low duty cycle down conversions to point-of-load voltages.

The ISL8215M power module is available now in a 19 x 13 x 5.3 mm HDA package for $13.90 each/1,000. An ISL8215MEVAL1Z evaluation board is also available for $69 each.

Littelfuse, in partnership with Monolith Semiconductor, is now offering its first series of SiC MOSFETs, the LSIC1MO120E0080. With a voltage rating of 1,200 V and 80 mΩ on-resistance, the series is organically designed, developed and manufactured. The devices are optimized for high-frequency switching applications, providing a combination of ultra-low switching losses and ultra-fast switching speeds, greater energy efficiency, reduced system size/ weight, and increased power density in power electronics systems. They also offers superior robustness and exceptional performance, even at high operating temperatures (150°C).

Typical applications for the SiC MOSFETs include power conversion systems such as solar inverters, switch mode power supplies, UPS systems, motor drives, high voltage dc/dc converters, battery chargers and induction heating.

The LSIC1MO120E0080 Series SiC MOSFET is available in TO-247-3L packaging and provided in tubes in quantities of 450. Sample requests may be placed through authorized Littelfuse distributors.

Linear Technology’s new 25 A step-down µModule regulator, LTM4645, features the ability to current share multiple independent devices (N) where at least one LTM4645 is used as backup (+1) to ensure power availability if one device detects a fault. For example, a 75 A, 1 V load requires three LTM4645s for 75 A total. One extra LTM4645 can be added as a backup in 3+1 fashion, resulting in four LTM4645s current shared to deliver 75 A if one fails. Applications benefiting from N+1 redundancy include data centers, aerospace, banking and cloud-based systems prioritizing system safety and integrity.

The product features 4.7 V to 15 V input supply, output voltage adjustable from 0.6 V to 1.8 V, and -40°C to 125°C operating temperature range. Synchronous step-down operation offers 25 A at 1 V from 12 VIN with 86% efficiency, 3.5 W power loss, and 41°C rise (no airflow, no heat sink). Up to 6 devices can current share for 150 A of load current.

LTM4645 µModule regulators are offered in 9 x 15 x 3.51 mm BGA packaging with prices starting at $26.23 each/1,000.

Vishay is broadening its microBUCK family of synchronous buck regulators with the Siliconix SiC46X series of 2 A to 10 A devices featuring a 4.5 V to 60 V input voltage range. Combining n-channel trench MOSFETs with a controller in a 5 x 5 mm MLP55-27L thermal package, the new devices offer high efficiencies up to 98% over the full load and enable cooler operation for long term reliability while eliminating the need for a heatsink. With their output current capability, >100 W output power, and adjustable output voltage from 0.95*VIN down to 0.8 V, the regulators target dc/dc converters in applications including industrial and factory automation, PLCs, home automation, base station PS, drones, BMS, and vending machines.

The scalable family of regulators, consisting of SiC464 (2 A), SiC463 (4 A), SiC462 (6 A) and SiC461 (10 A), feature robust protection and configurability with adjustable switching from 100 kHz to 2 MHz, adjustable soft start and current limits, and three operating modes.

Available now, the SiC46X family is priced for U.S. delivery ranging from $2.02 each/1,000 for the 2 A SiC464 to $3.39 for the 10 A SiC461.

Eltek is launching the Flatpack2 DCDC 380/48 3000 SHE, a new super high efficient power conversion module in the Flatpack2 family. The product utilizes Infineon’s CoolGaN technology, implemented in close co-operation with Infineon throughout the development, verification and industrialization process.

Reaching the 98% efficiency target, while also improving field performance, the converter enables a high efficiency end to end dc power solution for data centers. It converts the 380 Vdc bus voltage down to 48 Vdc with an efficiency of 98.2%. Backward compatibility to all 3 kW Flatpack2 versions is ensured.

With the converter, central 380 Vdc-UPS becomes a more viable solution for a wider range of data centers. The advantages of dc power systems as reliability, modularity, redundancy and high end to end efficiency, can be fully utilized for optimal power availability. Other key features include: 33 W/Inch3 power density; modular design; wide input range; patented He technology; and ORIng protection on output.

The Flatpack2 SHE is available now for order and delivery.

Vicor is expanding its family of isolated, regulated dc-dc converter modules (DCMs) in ChiP packages with a range of ±1% voltage regulation devices. With power densities up to 1,032 W/in3, the new series offers the option to directly drive loads that require tightly regulated output voltages. The current family of DCMs in a ChiP package offers up to ±3% regulation and can also be paralleled into arrays for higher power delivery.

The ChiP DCM can operate from a range unregulated input to generate an isolated dc output. With its high frequency ZVS topology, the converter consistently delivers high efficiency across its entire input voltage range.

The new series are initially offered with 28 V, 270 V and 275 V nominal input voltages. The products are aimed at a variety of defense and industrial applications that require tighter output voltage regulation, including UAV, ground vehicle, radar, transportation and industrial controls. All families are available in M-Grade, which provides operation down to -55°C.