333 results found, displaying items 21 - 40

Designed for telecom and computing systems, the Texas Instruments TPS54620 SWIFT single-chip point-of-load device (POL) sustains up to 17 V. As an addition to its other power-management ICs, this 6-A synchronous switcher features integrated FETs. It’s 60% smaller than multi-chip converters, according to TI, takes up less than 195 mm², and is one-fourth the size of a postage stamp.

ON Semiconductor’s NUC2401MN common-mode choke and electrostatic discharge (ESD) protection IC is designed for high-speed data line applications. According to the company, this device rids the low-voltage differential signaling (LVDS) interfaces of common mode noise, which becomes necessary when working with high bandwidth.

Agilent Technologies has introduced its N8700 series of dc power supplies. With capabilities identical to the N5700 series, the company says it has improved upon the older model with more than eight times the power density. This new series’ power density, at 5200 W in a 2U-high (2-EIA rack unit) package, also has PC-standard I/O with LAN (LXI-C), USB, and GPIB included.

The LTC4012, LTC4012-1, and LTC4012-2 switch-mode battery-charger controllers from Linear Technology target multiple battery chemistries. The LTC4012 supports Li-ion/polymer, NiMH, NiCd, and sealed lead-acid battery chemistries in single-cell and multi-cell configurations. The LTC4012-1 and LTC4012-2 use a programmable internal resistor divider to charge from one to four series lithium cells at multiples of 4.1 and 4.2 V, respectively.

The ADP2108 dc-dc converter from Analog Devices is designed to provide better energy efficiencies in battery-powered portable devices. Balancing low operating input voltage capability, low quiescent current, and small size, the 3-MHz, 600-mA device offers designers more flexibility in meeting strict power and printed-circuit board (PCB) area budgets without increasing battery capacity, according to the company.

The MAX14529E and MAX14530E overvoltage protectors (OVPs) from Maxim Integrated Products provide high-current USB charger detection. They use an integrated MOSFET to protect low-voltage systems against voltage faults up to 28 V, eliminating the need for an external nFET. Additionally, they provide robust electrostatic-discharge (ESD) protection (Human Body Model).

Analog Devices has introduced a family of low-dropout (LDO) regulators optimized for low input voltage and output voltage operation where low-noise power is needed. Available in 800-mA, 1.2-A, and 2-A load current ranges, the low-VIN, single-rail input ADP1740, ADP1741, ADP1752, ADP1753, and ADP1754 offer improved conversion efficiency and superior power-supply rejection ratio (PSRR) to support today’s high-performance signal chains, according to the company.

The LTC4266 four-port Power over Ethernet (PoE) controller from Linear Technology targets power-sourcing equipment (PSE) that’s required to provide IEEE 802.3at (25.5 W) or proprietary higher power levels. It provides up to 100 W over four-pair Ethernet cabling. Also, it fully complies with the new IEEE 802.3at PoE+ standard and is backward compatible with the prior IEEE 802.3af PoE standard.

The ADP1612 and ADP1613 step-up dc-dc converters from Analog Devices increase battery runtimes in portable industrial, instrumentation, and consumer applications such as thin-film-transistor (TFT) LCDs or cell phones, where low power consumption is required and board space is at a premium. Designers can use them to boost input voltages as low as 1.8 V up to output voltages as high as 20 V.

The PSA065 and PSA065M open-frame power supplies from Phihong comply with the CE low-voltage directive. Available in a 2- by 4-in. package that’s 1.11 in. tall and weighs 6.35 oz, these single-output, 65-W devices fit in 1U applications and are available in 12-, 24-, and 48-V output models.

The Smart Force SFW series of low-cost generic dc-ac inverters from Endicott Research Group targets universal use across a broad range of CCFL-backlit (cold-cathode fluorescent lamp) LCD applications. The series comprises 12 parts that cover a wide range of applications for ease of selection and pricing that’s competitive with key offshore competitors, according to the company.

The latest member of the SMB339 family of battery-charger ICs from Summit Microelectronics, the SMB329, integrates additional features such as instant-on even with a dead battery and real-time charge current monitoring. Like its predecessors, the third-generation device’s parameters are programmable in nonvolatile memory for power-up configuration and in volatile memory for in-system adjustments via the I²C host interface.

Designed for highly efficient, low- R_DS(ON) power MOSFETs, the V-Tr FET technology developed by SilTerra Malaysia Sdn Bhd and South Sea Semiconductor Ltd. features a narrow-trench gate electrode with a cell density of 488 million per square inch. The companies realized the technology, which is now available for mass production, using an existing production-ready 0.16-µm tool set, fewer masking layers, and smaller trench pitch.

Power-One Inc. has expanded its YEV series of 3-, 6-, and 10-A vertically mounted point-of-load (POL) dc-dc converters to offer an extended operating temperature range option of –40°C to 85°C, allowing these devices to be used in commercial applications as well as telecom applications that otherwise may have environmentally challenging temperature conditions.

The 75920 Master Battery Disconnect Switch from Cole Hersee Co. cuts off all battery power from the all vehicle electrical systems, including heavy truck, off-road, construction, emergency, material handling, refuse collection, mining, agricultural, and marine vehicles.

The PCIM Conference and Exhibition in Nuremberg has always been a focal point for the presentation of innovative conference papers and the presentation of new power electronics technology. This year was no exception.

The Quint SFB family of industrial-grade power supplies from Phoenix Contact now features a model with 20-A output at 12 V dc that’s designed for a variety of applications, including solar, wind turbine, telecommunications, and process control. The supply uses selective fuse breaking (SFB) technology, which allows supplemental branch circuit protection on the dc bus to operate as designed in a control system.

The VIPerPlus family of off-line switched-mode power-supply (SMPS) converters from STMicroelectronics minimizes standby power consumption and the number of external components required while enabling easy compliance with Blue Angel, Energy Star, and other low-power norms and directives, according to the company.

The iBD series of 7-A non-isolated point-of-load (POL) converters from TDK-Lambda features a DOSA-compatible (Distributed-power Open Standards Alliance) pin-out for use in telecom, computer, datacom, medical, and industrial equipment. These thru-hole mounted devices come in a single-inline package (SIP) that measures just 1.0 by 0.5 by 0.33 in.

• Build A Smart Battery Charger Using A Single-Transistor Circuit
• Efficient DC-To-AC Inverters Charge Equipment Racks
• DC-AC inverter targets electroluminescent applications
• Easy-To-Build AC Power Meter
• Voltage-To-Current Converter Works From A Single-Supply Rail