FTM 富昌电子技术杂 志 asia pacific Technology Magazine from Future Electronics February 2011 Application Spotlight: LIGHTING Component Focus - page 2 Proven microcontroller core provides basis for cost-effective metering family Freescale Semiconductor Design Notes - page 7 Getting the most from the new lighting reference design kit Freescale Semiconductor Application Spotlight - page 8 Dimmer-compatible LED drivers maximise feature integration and flexibility NXP Semiconductors Technical view - page 18 Imp
COMPONENT FOCUS CONTENTS 2 3 Proven microcontroller core provides basis for costeffective metering family FREESCALE SEMICONDUCTOR MOSFETs incorporate latest package advances in standard PQFN outlines INTERNATIONAL RECTIFIER Rugged aluminium electrolytic capacitors minimise nonideal parameters VISHAY 4 IR Introduces the IRF6708S2 and IRF6728M DirectFET® MOSFET Chipset Tailored for Cost Sensitive DC-DC Applications INTERNATIONAL RECTIFIER Package innovation allows easy visual solder inspection with highly
COMPONENT FOCUS MOSFETs incorporate latest package advances in standard PQFN outlines International Rectifier from lower package resistance leading to a reduction in overall MOSFET on-resistance.
COMPONENT FOCUS IR Introduces the IRF6708S2 and IRF6728M DirectFET® MOSFET Chipset Tailored for Cost Sensitive DC-DC Applications International Rectifier The IRF6708S2 and IRF6728M feature IR’s latest generation 30V MOSFET silicon. In addition to low RDS(on) and charge, the new devices leverage the low parasitic resistance inductance and superior cooling ability of the DirectFET package.
COMPONENT FOCUS Automotive-microcontroller family delivers maximum safety and value Freescale Semiconductor Qorivva 32-bit microcontrollers from Freescale Semiconductor drive Power ArchitectureR in-car computing, offering engineers lower development costs, faster time to market and zero-defect capability for engine, safety and body applications. All devices are based on Freescale’s scalable e200 processor core, with single-issue or twin issue configurations providing a wide range of performance options.
COMPONENT FOCUS New Freescale QorIQ processor helps to secure the network’s edge Freescale Semiconductor Low-power, cost-effective offering incorporates advanced security capabilities for factory equipment, DVRs, storage applications and more As the reach of the world’s networks extends further into new end-devices and previously unconnected industries, network security has become increasingly important to consumers, businesses and other organizations.
DESIGN NOTES Getting the most from the new lighting reference design kit Freescale Semiconductor selected LED to be adjusted using one of three techniques. The default window, when an LED is selected, will offer sRGB colour-space control, allowing a colour balance to be selected by touching within the colour square and adjusting the slider to the right of the colour square. A translation from sRGB colour space to CIE 1931 colour space coordinates will also be calculated and displayed.
APPLICATION SPOTLIGHT Dimmer-compatible LED drivers maximise feature integration and flexibility NXP Semiconductors The NXP Semiconductors SSL210x family comprises three LED drivers for solid-state lighting and incandescentbulb replacement covering a wide range of power ratings and industrystandard form factors. The SSL2101 and SSL2102 are fully integrated drivers suitable for use in lamps up to 10W and 25W respectively.
APPLICATION SPOTLIGHT Microchip’s New Digital LED Lighting Development Kit Makes it Easy to Add Intelligence and Improve Efficiency in LED Lighting Applications Microchip Free Reference Design and dsPIC33 ‘GS’ Family of Digital Signal Controllers Helps Lower Product Costs, Reduce Size and Improve Efficiency Microchip new Digital LED Lighting Development Kit helps LED lighting designers who are challenged to meet the rapidly expanding demand for green, smart energy technologies while differentiating their
APPLICATION SPOTLIGHT Non-dimming CFL drivers raise performance and reliability NXP Semiconductors The UBA2211 family from NXP Semiconductors provides a selection of highly integrated CFL drivers enabling improved quality of light at lower cost in non-dimming applications.
APPLICATION SPOTLIGHT Vishay Intertechnology Releases Metal-Core-Based, Cold White LED Power Modules Assembled With 12, 24, or 36 High-Brightness LEDs and Featuring Color Temperature Range of 5000 K to 7000 K Vishay with 12, 24, or 36 high-brightness LEDs. The new VLSL40xxA is designed for flexible use by utilizing optional special reflectors to adjust the modules’ emission characteristics, while the VLSL50xxA features a clear silicone lens for a butterfly-shaped radiation characteristic.
APPLICATION SPOTLIGHT Lighting Reference Design kit adds wireless control and streamlines development Freescale Semiconductor Freescale Semiconductor is updating its Lighting Reference Design discussed in FTM1001, delivering increased functionality and ease of use by adding ZigBeeR-based wireless control of three (RGB) or four (RGBW or RGBA) LEDs to the existing DALI and DMX512-A/RDM LED protocols, and also by using the modular Tower System development platform.
APPLICATION SPOTLIGHT High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense FEATU RES : Micrel Semiconductor side current sensing and on-chip currentsense amplifier delivers LED current with ±5% accuracy. An external high-side current-sense resistor is used to set the output current. The MIC3202 offers a dedicated PWM input (DIM) which enables a wide range of pulsed dimming.
Bringing the Power to Light™ with Simple HBLED Drivers High Brightness LED Drivers with High-Side Current Sense D VIN L RCS LED1 D VIN CIN L RCS LEDN LEDs CIN LX CS VIN EN PGND EP VIN VCC EN MIC3202 DIM DRV CS CVCC DIM AGND RG MIC3203 VCC CVCC PGND AGND Applications Landscape Lighting MR-16 Bulbs The rapid growth of LED lighting applications in commercial, industrial and automotive markets has led to a wide variety of technical challenges for LED Drivers.
APPLICATION SPOTLIGHT LED controller with hysteretic-mode control enhances transient response, simplifies design Micrel Semiconductor an external power MOSFET, allowing use in a wide range of applications from low-voltage lighting to line-powered incandescent-bulb replacement. The hysteretic-mode control scheme employed uses an error comparator, instead of an error amplifier, to maintain the inductor current within a desired window.
APPLICATION SPOTLIGHT Digital-power controllers unlock performance, flexibility and energy-efficiency gains Microchip Microchip’s dsPIC33F GS family of digital signal controllers is optimised for highperformance digital-power control, and enable part-count reduction as well as greater performance, flexibility and energy efficiency in applications such as power supplies, renewable-energy systems and advanced lighting.
TECHNICAL VIEW Improving comfort and cost savings with intelligent lighting Growing interest in solid-state lighting is not only creating a need for LEDs offering greater light output, reliability and quality, but is also driving demands for cost-effective and interactive LED systems that will deliver further reductions in energy consumption.
TECHNICAL VIEW rules, using data from sensors and a pre-programmed scheduling system: • • • 24 hrs per day, 7 days per week: If the motion detector detects presence in a room, the light will be turned ON The light levels from the luminaires will be adjusted to take into account the ambient light to deliver a constant illumination level During very sunny days, some lights may be turned OFF if the sunlight is sufficient to help generate the target illumination level From 6pm to 6am and weekends: The schedu
IRS2573D: HID System Know-How-In A Chip Fully Integrated Dedicated HID-IC Solution Features: Specifications Part Number Package Offset Voltage (V) IRS2573D SO28-WB 600 Output Voltage Max. (V) 15.6 Output Source Current (mA) Output Sink Current (mA) Deadtime (µsec) 180 260 1.
