Power Electronics Technology
Power Electronics Technology
Power Electronics Technology
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NEWproducts<br />
■14-Bit, 4.5Msps SAR Analog-to-Digital Converter<br />
THE LTC2314-14 from Linear <strong>Technology</strong> is a 14-bit 4.5Msps<br />
successive approximation register (SAR) ADC in a tiny 8-lead<br />
TSOT-23 package, offering up to 90% reduction in size over<br />
competing solutions for space-conscious applications. This small<br />
SAR ADC integrates a precision 2.048 V/4.096 V reference with<br />
7 ppm/°C typical and guaranteed<br />
20 ppm/°C maximum temperature<br />
coefficient into an 8mm² footprint.<br />
The LTC2314-14 operates from a<br />
3 V or 5 V supply and features the<br />
lowest power dissipation (18 mW<br />
at 3 V or 31 mW at 5 V) compared<br />
to other competitive parts on the<br />
market. With its serial SPI interface,<br />
tiny footprint and very low power<br />
dissipation, the LTC2314-14 is ideal for a wide range of portable<br />
and space-constrained applications, including medical devices,<br />
communications systems and battery-operated systems.<br />
Also available is the LTC2315-12, a 12-bit pin- and softwarecompatible<br />
version of the LTC2314-14, featuring a fast 5Msps<br />
sample rate. The LTC2314-14 and LTC2315-12 lead a family of<br />
14- and 12-bit SAR ADCs featuring sample rates from 500 ksps<br />
■Online IGBT Product Selector and Performance Evaluator<br />
Tool Simplifies Device Selection and Optimization<br />
INTERNATIONAL RECTIFIER, IR® has enhanced its Insulated Gate Bipolar Transistor<br />
(IGBT) selection tool that enables design optimization in a wide range of applications<br />
including motor drives, uninterruptable power supplies (UPS), solar inverters, and welding.<br />
IR’s enhanced IGBT selection tool evaluates application conditions including bus<br />
voltage, load current, switching frequency, short-circuit requirements, package and<br />
thermal system. New features include<br />
customizable thermal constraint setting<br />
and Current vs. Frequency output chart<br />
that conveniently compare devices over<br />
a range of operating conditions.<br />
Located at http://mypower.irf.com/<br />
IGBT, the IGBT selection tool returns<br />
a shortlist of products that meet or<br />
exceed the application parameters entered by the user. The products are ranked by<br />
performance with losses and junction temperature for the specified operating condition<br />
to help facilitate the selection process.<br />
IGBT selection requires evaluation of many parameters that cannot be simplified into<br />
a single metric, as switching losses can be traded for conduction losses. To address<br />
this problem, IR’s product selection tool generates a Current vs. Frequency graph that<br />
provides a powerful indication of the relative performance of different IGBTs. With this<br />
information the designer can select the most cost-effective IGBT for the application.<br />
International Rectifier<br />
El Segundo, CA<br />
http://www.irf.com<br />
to 5 Msps with 77.5 dB SNR at 14 bits and 73 dB SNR at 12<br />
bits resolution. Accurate DC specifications include a maximum<br />
INL and DNL of ±3.75 LSB and ±0.99 LSB at 14-bits, and<br />
±1.25 LSB and ±0.99 LSB at 12-bits, respectively. The complete<br />
LTC2314 SAR ADC family offers single-ended unipolar<br />
inputs, small 8-lead TSOT-23<br />
packages, precision integrated<br />
reference and low power dissipation<br />
with flexible 3V or 5V supply<br />
operation, along with nap and<br />
sleep modes for optimizing the<br />
power within a system.<br />
The LTC2314-14 and<br />
LTC2315-12 are available today<br />
in commercial, industrial and<br />
automotive (-40 °C to 125 °C) temperature grades. Pricing<br />
begins at $9.52 each for the LTC2314-14 and $5.17 each<br />
for the LTC2315-12 in 1,000-piece quantities. The DC1563A<br />
evaluation board for the LTC2314 SAR ADC family is available.<br />
Linear <strong>Technology</strong><br />
Milpitas, CA<br />
http://www.linear.com<br />
■Miniature Through-Hole<br />
<strong>Power</strong> MOSFETs<br />
ADVANCED POWER <strong>Electronics</strong> Corp.<br />
(USA), launched a new series of power<br />
MOSFETs in the popular TO-92 throughhole<br />
package which is widely used in commercial<br />
and industrial applications where<br />
PCB space is at a premium.<br />
Ideally suited for low current applications<br />
such as small switch power supplies and<br />
load switches, the AP4002T N-channel<br />
enhancement-mode power MOSFETs feature<br />
fast switching characteristics and a low gate<br />
charge. BVDSS is 600 V, RDS(on) is 5 ohm,<br />
and ID is 400 mA. Devices also feature<br />
ROHS-compliant, halogen-free packaging.<br />
Advanced <strong>Power</strong> <strong>Electronics</strong> Corp.<br />
San Jose, CA<br />
http://www.a-powerusa.com<br />
www.powerelectronics.com June 2013 | <strong>Power</strong> <strong>Electronics</strong> <strong>Technology</strong> 35
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