Product category:
DC/DC Convertors
News Release from: Texas Instruments (April 2001-March 2006) | Subject: T2 series of point-of-load modules
Edited by the Electronicstalk Editorial
Team on 29 November 2005
Power modules have ultrafast transient
response
A new family of nonisolated, plug-in power modules use a technology that provides ultrafast transient response rates and avoids the need for output capacitors.
Texas Instruments has A new family of nonisolated, plug-in power modules that use a technology that provides ultrafast transient response rates and dramatically reduces need for output capacitors Featuring a tight 1.5% output voltage regulation, the point-of-load modules offer increased performance in a smaller footprint for designers of 3G wireless infrastructure, networking and communication systems that use advanced DSPs, FPGAs, ASICs and microprocessors
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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"Today's high-end communication system designers continue to develop systems with complex power requirements that must support more functionality, yet meet lower processing core voltage levels", said Steve Anderson, Director of TI's plug-in power business.
"Texas Instruments consistently meets this design challenge with new generations of state-of-the-art, plug-in power modules derived from analogue manufacturing and power system expertise and understanding of future digital signal processing power requirements".
Extending TI's popular line of PTH devices, the new T2 series of point-of-load modules will support step-down DC/DC conversion from a wide 4.5 to 14V input with adjustable output voltages down to 0.7V at output currents up to 50A making them ideal for intermediate bus architecture (IBA) applications.
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The power modules offer several advanced features to reduce the overall power solution footprint by as much as 50% compared with TI's previous generation devices.
Advanced processing platforms, such as TI's new 1GHz TMS320TCI6482 DSP for 3G wireless basestations, requires extremely fast transient responses for a system to perform at a high level.
To achieve certain transient targets, thousands of microfarads of capacitors must be added to most power supply systems.
Even with higher volumetric efficiency, the added level of capacitance may expand the size of the overall power solution to more than that of the power supply alone - space that may have not been budgeted for or available.
The T2 power modules feature an innovative new TurboTrans technology, which allows a power supply designer to dynamically tune the modules using a single external resistor to meet a specific transient load requirement.
The end result is faster transient response with 40% less output voltage deviation and a five to eight times reduction in output capacitance.
In addition, system stability is enhanced when using ultralow equivalent series resistance (ESR) polymer tantalum or ceramic capacitors.
In addition to TurboTrans technology, the T2 modules incorporate an innovative SmartSync function that allows the designer to synchronise the switching frequencies of multiple T2 devices to maximise power efficiency and minimise electromagnetic interference (EMI).
SmartSync also allows the T2 modules to synchronise at different phase angles using external circuits to help balance source loading and minimise input capacitance.
The synchronised modules also make EMI filtering easier by eliminating beat frequencies.
Additional features of the T2 modules include TI's proprietary autotrack sequencing technology, which allows multiple modules to power up and down in sequence without external circuitry.
The unique Auto-Track sequencing feature permits nonisolated power modules to track each other or any external control voltage.
Meeting 260C reflow requirements, the T2 series also provides advanced prebias startup capabilities.
The T2 power modules are now available in sample quantities.
TI is currently accepting orders for volume production.
Pricing per module in quantities of 1000 begins at $7.90.
Evaluation modules of the T2 family, application notes and TI's online power management product selection tool are available.
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