Battery Power - May/June 2012 - (Page 20)

New Products • ICs & Semiconductors ON Semiconductor has released the NMLU1210, a power MOSFET integrated circuit (IC) for wireless charging applications in portable products such as cell phones, media tablets, portable media players, digital still cameras and GPS units. The NMLU1210 is a 20 volt (V) N-channel full bridge semisynchronous rectifier, that incorporates a dual Schottky barrier diode supporting up to 3.2 ampere (A) operation plus two MOSFETs with a 17 milli ohm (mΩ) (typical) Rds(ON) to minimize conduction losses and increase efficiency of the charging system. Wireless inductive charging is becoming increasingly popular, freeing consumers from the inconvenience of the traditional wired approach. It works on the principle of an electromagnetic field being created for the rapid transfer of energy between the transmitter (in the charging station) and the receiver (in the portable device). The NMLU1210 is used by the receiver side to convert AC voltage generated by the transmitter to DC voltage used for battery charging. Offered in an ultra-low inductance thermally efficient package, it is optimized specifically for power management tasks in portable electronic products. This IC is highly suited to use in space-constrained environments. It has an operational junction temperature of -55°C to 125°C. The NMLU1210 is offered in a 4.0 mm by 4.0 mm by 0.5 mm µCool, RoHS-compliant package. The device is priced at $0.70 per unit in 10,000 unit quantities. ON Semiconductor Introduces High Efficiency Wireless Charging ICs 70°C. Both parts feature 60 dB minimum output-off isolation at 5 MHz. The CPC7701 also features integrated bleed resistors on each switch terminal to discharge the voltage built up on capacitive loads such as piezoelectric transducers. Microchip Brings Cost-Effective Advanced Analog and Digital Integration to 8-bit PIC Microcontrollers Microchip Technology, Inc. has expanded its 8-bit PIC16F(LF)178X enhanced mid-range core microcontroller (MCU) family to include advanced analog and integrated communication peripherals, such as on-chip 12-bit analog-to-digital converters (ADCs), 8-bit digital-to-analog converters (DACs), operational amplifiers and high-speed comparators, along with EUSART, I2C and SPI interface peripherals. The MCUs also feature advanced PWM control and accuracy via the new programmable switchmode controllers (PSMCs). This combination of features enables higher efficiency and performance, along with cost and space reductions in applications such as closed-loop control in power supplies and lighting. The LF versions of the MCUs feature eXtreme low power technology, for active and sleep currents of 32 µA/MHz and 50 nA, respectively, helping to extend battery life and reduce standby current consumption. Low power consumption and advanced analog and digital integration make the general-purpose PIC16F(LF)178X MCUs well suited for LED lighting, battery management, digital power supply, motor control and other applications. The PIC16F(LF)178X MCUs enable designers to create better products that consume less power. Microchip’s enhanced mid-range 8-bit core brings more performance, with 32 MHz operation, automatic context save for faster interrupt handling, more efficiency in the instruction set with better code density, plus faster and more direct-port control capabilities. Available in 28- and 40-pin packages, the MCUs’ analog integration includes an on-chip 12-bit ADC for very small voltage measurements, as well as enabling mTouch capacitive sensing; and an 8-bit DAC for high-resolution voltage references. The PIC16F(LF)1782/3/4/6/7 MCUs are available in 28-pin SOIC, SPDIP, 6 mm by 6 mm QFN and 4 mm by 4 mm UQFN; as well as 40-pin PDIP, TQFP, 8 mm by 8 mm QFN and 5 mm by 5 mm UQFN packages. Pricing starts at $1.18 each, in 10,000-unit quantities. IXYS-Clare Introduces 16-Channel High Voltage Analog Switch ICs IXYS-Clare, a division of IXYS Corp. has released the CPC7601 and the CPC7701 16-channel high voltage analog switch ICs. The CPC7601 and CPC7701 feature 16 low gate charge injection analog switches that are rated at 200 V and are controlled by low voltage CMOS logic signals (3 V or 5 V). Input data is serially entered into a 16-bit shift register and then buffered and stored in a 16-bit transparent latch. These high voltage switches are constructed using Clare’s HVIC SOI (silicon on insulator) wafer process. The analog switches are capable of switching high load voltages, and have a flexible load voltage ranges (ex. 40 V/-160 V or 100 V/-100 V), making then well suited for medical, ultrasound imaging and industrial applications. The CPC7601 and CPC7701 require very low quiescent current (less than 0.1 micro-A typical), and are specified over an extended temperature range of 0°C to 20 Battery Power • May/June 2012 www.BatteryPowerOnline.com http://www.BatteryPowerOnline.com

Table of Contents for the Digital Edition of Battery Power - May/June 2012

Battery Power - May/June 2012
New Battery Interface Specification to Address Key Consumer and Manufacturers’ Issues
Demand Spike for Backup Power Systems Stokes Growth in the Global Stationary Lead Acid Battery Market
Battery Management Considerations for Large Cell Count Systems
Flywheel Energy Storage – A UPS Battery’s Best Friend
Zero-Volt: Medical and Satellite Battery Technology Can Help Improve Safety of Electric Vehicles
Second Edition of IEC 62133: The Standard for Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes is in its Final Review Cycle
Batteries
ICs and Semiconductors
Charging & Testing
Components
Power Supplies
Industry News
Marketplace
Calendar of Events
Research and Development

Battery Power - May/June 2012