DC-DC converter
In March 2013, Emaar Impex Pvt Ltd introduced the LM1938, a step-up DC-DC converter specifically designed to drive white LEDs with a constant current. The device can drive up to 27 LEDs from a 5V supply. The LM1938 uses a constant frequency, current mode control scheme to provide excellent line and load regulation. At the start of each oscillator cycle, the RS latch sets itself and turns on the power switch Q1. A voltage proportional to the switch current is added to a stabilising ramp, and the resulting sum is fed into the positive terminal of the PWM comparator A2. When this voltage exceeds the level at the negative input of A2, the RS latch resets itself, turning off the power switch.
For further details: Ph: +91-22-23801086, www.emaarindia.com
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Low-dropout regulator
In April 2013, Linear Technology Corporation launched the LT3007, the latest member in a family of high voltage, micro power, robust PNP-based regulator, featuring an ultralow 3µA quiescent current. LT3007’s high input voltage capability, spanning 2.0V to 45V with an adjustable output voltage ranging from 0.6V to 44.5V, enables operation in a wide variety of application spaces. LT3007’s pin out is FMEA (failure mode effects analysis) compliant, which means the output stays at or below the regulation voltage during an adjacent pin short event, or if a pin is left floating.
The LT3007 delivers an output current of up to 20mA with a corresponding low dropout voltage of only 300mV.
For further details: Ph: (91)-80-40124610, www.linear.com
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Single and multi-channel isolated switches
In March 2013, Marsh Bellofram launched its ISO/ISL series of switches, providing a safe and reliable means of controlling energy loads from hazardous locations. Available in both single- and multi-channel models and offering up to four channels, the ISO/ISL series is designed to perform under both normal and abnormal conditions without releasing energy values that could lead to ignition of a flammable or combustible atmospheric mixture, even in its most easily ignited concentration.
The ISO/ISL series of switches feature a fully isolated output, which turns on when the control switch input from the hazardous location is closed. The multi-channel series is available with a choice of latching or non-latching output.
For further details: Ph: 304-387-1200 (USA), [email protected], www.marshbellofram.com
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Automotive system-on-chip
In March 2013, Renesas Electronics Corporation launched a new member of the R-Car series of automotive system-on-chip (SoC). Capable of delivering more than 25,000 DMIPS, the R-Car H2 provides high performance and state-of-art 3D graphics capabilities for high-end multimedia and navigation automotive systems. The R-Car H2 is powered by the ARMR CortexTA-15 quad-core configuration running an additional ARMR CortexTA-7 quad-core—the industry’s first implementation of a Quad ARMR Cortex A15. The R-Car H2 is equipped with the IMP-X4, which has four times the processing performance compared to the R-Car H1, to support OpenCV.
For further details: Ph: 080-67208700, sg.renesas.com
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Chip resistors
In March 2013, Stackpole Electronics launched the HMC series of thick-film-based chip resistors, which are capable of high resistance values. The series utilises special high resistance inks and volume production to achieve a chip resistor that is capable of extremely high resistance values without significant cost increases. This makes the HMC series a popular choice for gas detection, dividers, wireless equipment, test and measurement equipment, medical devices, instrumentation and network analysers. The HMC series is available in sizes that range from 0402 to 2512, in resistance values from 10.2Mohm to 10Gohm, and with tolerances as low as one per cent.
For further details: Ph: (919) 850-9500 (USA), www.seielect.com
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Aluminium electrolytic capacitors
In March 2013, TTI introduced two new ranges of aluminium electrolytic capacitors from Panasonic. The new FR Series of aluminium electrolytic capacitors is designed for applications that require ultra-low ESR, an extended product life, and are short of space. The FR Series has been developed using improved materials technology resulting in up to 30 per cent increased capacitance over Panasonic’s current comparable product, the FM Series.
Panasonic’s V-ZA Series is a conductive speciality hybrid capacitor, which combines the low ESR characteristics of speciality polymer capacitors and the advantage of low leakage current. Compact in design, the series also offers the high reliability advantage of speciality polymers and the safety of aluminium electrolytic capacitors.
For further details: Ph: (800) 225-5884 (USA), [email protected], www.ttiinc.com
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Compact resistors
In March 2013, Vishay Intertechnology Inc launched the VACR Series of compact aluminium-housed resistors with power ratings of up to 500W. The new devices will be used in industrial, motor drive, railway, renewable energy, and other high-power systems as braking, chopper, pre-discharging, and voltage-limiting resistors, among other applications. VACR resistors feature power ratings from 50W to 500W, with IP20 or IP65 protection. Standard tolerance is ± 10 per cent, with a maximum permissible operating voltage of UL 600V and/or UL 1000V, depending on the model. With short-term loads, these VACR resistors are characterised by up to an 11-fold overload (on-time 6 per cent with a 120s cycle duration).
For further details: Vishay Intertechnology Asia Pte Ltd, Ph: 65-6788-6668, [email protected], www.vishay.com
India distributor: Arrow Electronics India Ltd, Ph: 91-80-41353800, [email protected]
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Li-ion battery charger ICs
In March 2013, Texas Instruments Incorporated (TI) introduced lithium-ion battery charger integrated circuits (ICs) that reduce charge times by 50 per cent in smartphones and tablets compared to other charger solutions. The Bq2419x family has a 4.5-A output, 20V input-rated switch-mode chargers with I2C interface and USB on-the-go (OTG) support, delivering faster and cooler charging to a wide array of applications ranging from power banks and packs to 4G LTE routers, Wi-Fi speakers, and portable medical and industrial designs. The Bq2419x family of ICs also cut charge time in half with unique battery path impedance compensation.
For further details: India Product Information Centre, Toll: +91 80 41381665; Toll-free: +1800 425 7888, [email protected]
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pHEMT FET
In April 2013, RFMW Ltd introduced a discrete 180-micron pHEMT made by TriQuint Semiconductor, which operates upto 20GHz. The TGF2018 is designed using TriQuint’s proven standard 0.25um power pHEMT production process. This process features advanced techniques to optimise microwave power and efficiency at high drain bias operating conditions. The TGF2018 typically provides 22dBm of output power at P1dB, with a gain of 14dB and 55 per cent power-added efficiency at 1dB compression. This performance makes the TGF2018 appropriate for high efficiency applications. The protective overcoat layer with silicon nitride provides a high level of environmental robustness and scratch resistance.
For further details: Ph: 408 414 1450, [email protected], www.rfmw.com
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Power management IC
In March 2013, ROHM launched a dedicated system power management IC (PMIC) to support Intel’s latest Atom-based platform, codenamed Bay Trail. It is a highly integrated power management solution targeted towards ultra-thin form factor tablet and convertible devices.
According to the company, the PMIC represents more than just a successful IC design. It represents a strong collaboration with Intel’s mobile and communications group that allows Intel to release a cutting-edge tablet SoC platform. Customers will enjoy the benefit of a fully-integrated PMIC which delivers improved battery life and higher integration.
For further details: ROHM Semiconductor Singapore Pte Ltd, Ph: +65-6332-2322, [email protected], www.rohm.com
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IC for embedded computing
In February 2013, Toradex launched Apalis T30, the first product in the new Apalis module family. Complementing the existing Colibri module family, Apalis comes with a range of new features which customers can use to develop the most advanced, robust products with minimum overhead and risk.
Apalis module is based on NVIDIA Tegra 3 Cortex-A9 Quad Core 1.4GHz CPU. Other features include SATA, PCIe, USB3.0, and gigabit Ethernet; DVFS and thermal throttling for achieving the lowest power consumption; and up to 127 GPIOs, SPI, CAN, PWM, parallel camera and other industrial interfaces.
For further details: Toradex System (India) Pvt Ltd, Bengaluru, Ph: (080) 41119096, www.toradex.com
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ARM-powered MCU
In February 2013, Freescale Semiconductor launched new Kinetis KL02 MCU—the world’s smallest ARM-powered MCU. The KL02 holds great potential for ultra-small-form-factor products in applications such as portable consumer devices, remote-sensing nodes, wearable devices and ingestible healthcare sensing.
Measuring just 1.9×2.0mm, the Kinetis KL02 MCU is 25 per cent smaller than the industry’s next-smallest ARM MCU. Within this miniscule device, Freescale has included the latest 32-bit ARM Cortex-M0+ processor, cutting-edge low-power functionality and a range of analogue and communication peripherals.
For further details: Freescale Semiconductor India Pvt Ltd, Noida, Ph: (0120) 4395000, www.freescale.com
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Electronics Bazaar, South Asia’s No.1 B2B magazine
