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IR Introduces High Performance MOSFETs for Power Supplies and Electric Motors - - EL SEGUNDO, Calif., May 19, 2008 (BUSINESS WIRE) -- International Rectifier, IR(R) (NYSE: IRF), a world leader in power management technology, today introduced a new family of 60 V and 75 V MOSFETs optimized for industrial battery applications such as E-bikes, scooters and utility carts.

Renesas Technology Develops Future 32-bit RX600 Series CISC MCUs, Based on Renesas' Next-Generation ‘RX’ Architecture - TOKYO, May 20, 2008 −− Renesas Technology Corp. today announced the development of the RX600 Series microcontrollers (MCUs), re-defining performance capabilities of CISC (Complex Instruction Set Computer)*1 based MCUs.

ISL54405 - CD/MP3 Quality Stereo 2:1 Multiplexer with Click and Pop Elimination - The Intersil ISL54405 is a single supply, bidirectional, dual single-pole/double-throw (SPDT) ultra low distortion, high OFF-Isolation analog switch that can pass analog signals that are positive and negative with respect to ground. It is primarily targeted at consumer and professional audio switching applications such as Computer Sound Cards and Home Theater products. The inputs can accommodate ground referenced signals up to 2VRMS while operating from a single 3.3V or 5V DC supply. The digital logic inputs are 1.8V logic-compatible when using a single 3.3V or 5V supply. It can be used in both AC or DC coupled ground referenced applications. 

ISL6265 - Multi-Output Controller with Integrated MOSFET Drivers for AMD SVI Capable Mobile CPUs - The ISL6265 is a multi-output controller with embedded gate drivers. A single-phase controller powers the Northbridge (VDDNB) portion of the CPU. The two remaining controller channels can be configured for two-phase or individual single-phase outputs. For uniplane CPU applications, the ISL6265 is configured as a two-phase buck converter. This allows the controller to interleave channels to effectively double the output voltage ripple frequency and thereby reduce output voltage ripple amplitude with fewer components, lower component cost, reduced power dissipation, and smaller area. For dual-plane processors, the ISL6265 can be configured as independent single-phase controllers powering VDD0 and VDD1. 

Amplifiers and Linear INA210 Voltage Output, High/Low-Side Measurement, Bi-Directional Zero-Drift Series Current Shunt Monitor - The INA210, INA211, INA212, INA213, and INA214 are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from -0.3V to 26V, independent of the supply voltage. Five fixed gains are available: 50V/V, 100V/V, 200V/V, 500V/V, or 1000V/V. The low offset of the Zerø-Drift architecture...

Power Management TPS60252 High Efficiency Charge Pump for 7 WLEDs with I2C Interface - The TPS60250/2 are high efficiency, constant frequency charge pump DC/DC converters that use dual mode 1× and 1.5× conversions to maximize efficiency over the input voltage range. The devices drive up to five white LEDs for the main display and up to two white LEDs for the sub display with regulated constant...

Analog Devices Introduces Industry’s First Digital Isolators Qualified For Automotive Systems - Unlike the relatively low-voltage signals powering most in-car entertainment, safety, and power train systems, hybrid-vehicle batteries can operate at voltages in excess of 600 V, which creates a need to galvanically isolate system-critical electronics.

Infineon Offers PFC and FOC on XC878 Series of 8-bit Microcontrollers for Energy Efficient Motor Drives - Neubiberg, Germany – May 19, 2008 – Infineon Technologies AG (FSE/NYSE: IFX) today announced that they have added another series of cost-effective 8-bit microcontrollers (MCUs) to its powerful XC800 family.

Altera Announces Industry’s First 40-nm FPGAs and HardCopy ASICs - Stratix IV FPGAs and HardCopy IV ASICs Both Offer Transceiver Options San Jose, Calif., May 19, 2008—Enabling designers to achieve new levels of integration and innovation, Altera Corporation (NASDAQ: ALTR) today announced the industry’s first 40-nm FPGAs and HardCopy® ASICs.

AD7949: 14-Bit, 8-Channel, 250 kSPS PulSAR® ADC - The AD7949 is an 8-channel, 14-bit, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) that operates from a single power supply, VDD.

Clocks and Timers SN74SSQE32882 28-Bit to 56-Bit Registered Buffer with Address-Parity Test - Features1-to-2 Register Outputs and 1-to-4 Clock Pair Outputs Support Stacked DDR3 DIMMsChip Select Inputs Prevent Data Outputs from Changing State and Minimize System Power Consumption1.

Data Converters ADS5560 16-bit 40MSPS Low Power ADC with Selectable LVDS/CMOS Outputs - ADS556X is a high performance 16-bit A/D converter family with sampling rates up to 80 MSPS. It supports very high SNR for input frequencies in the first Nyquist zone. The device includes a low frequency noise suppression mode that improves the noise from dc to about 1MHz. In addition to high performance, the device offers several...

Interface SN65HVD1791 70-V Fault-Protected RS-485 Transceivers Full-Duplex - These devices are designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. They are also robust to ESD events, with high levels of protection to human-body model specifications. These devices combine a differential...

Interface TLK3134 4-Ch 600 Mbps to 3.75 Gbps Multi-Rate Transceiver - The TLK3134 is a flexible four-channel independently configurable serial transceiver. It can be configured to be compliant with the 10Gbps Ethernet XAUI specification. It can also be configured to be compliant with the 1000Base-X 1Gbps Ethernet Specification (Auto-Negotiation not supported). The TLK3134 provides high-speed...

Power Management TPS2066 Dual 1A Current-Limited, Power-Distribution Switches - The TPS206x power-distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. This device incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is...

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MAX17005, MAX17006, MAX17015 - 1.2MHz, high-performance battery-charger ICs minimize solution cost and size

MAX17005, MAX17006, MAX17015 - 1.2MHz, high-performance battery-charger ICs minimize solution cost and size

The MAX17005 charges three to four cells with a cell voltage of 4.2V to 4.4V; the MAX17006 charges two to three cells with a cell voltage of 4.2V to 4.4V; and the MAX17015 adjusts the charge-voltage setting and number of cells through a feedback resistor-divider at the output. [Read more...]
 

Power Management BQ24315 Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC

04.04.2008 17:30 - Source: Texas Instruments
Features
Description

The bq24315 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The output of the bq24315 acts a linear regulator. The output is regulated to 5.5V for inputs between 5.5V and the overvoltage threshold. If an input overvoltage condition occurs, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.

The IC can be controlled by a processor and also provides status information about fault conditions to the host.

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