Product category:
DC/DC Convertors
News Release from: Emerson Network Power - Embedded Power | Subject: PTH series
Edited by the Electronicstalk Editorial
Team on 14 November 2003
POL convertors take power sequencing
onboard
Fifteen new high-performance nonisolated point-of-load DC/DC convertors, all of which feature exceptionally powerful control facilities, including a unique power sequencing capability.
Fifteen new high-performance nonisolated point-of-load DC/DC convertors, all of which feature exceptionally powerful control facilities, including a unique power sequencing capability Fully compatible with the Point-of-Load Alliance (POLA) - a new form, fit and function standard providing true multiple-sourcing capability to OEMs - Artesyn's PTH series nonisolated point-of-load convertors provide electronic designers with a highly flexible and cost-effective means of addressing the multiple power rail requirements of latest-generation boards
This article was originally published on Electronicstalk on 4 Feb 2000 at 8.00am (UK)
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Target markets include distributed power architectures in products such as workstations, and networking and wireless equipment - especially those involving complex multiprocessor systems.
All 15 point-of-load (POL) convertors in Artesyn's PTH series are available in through-hole and surface-mount versions.
The convertors all offer wide output voltage adjustability, set via a single resistor, together with an on/off inhibit function and output overcurrent protection with automatic recovery.
Further reading
Artesyn extands 24V DC/DC range to 30A
Artesyn Technologies has added a new member to its BXB family of industry standard, half-brick DC/DC converters.
New standard in efficiency from DC/DC Converters
Artesyn Technologies has introduced the EXB30 series of high-efficiency, single-output, open-frame, isolated DC/DC converters.
Artesyn releases 2000 Power Supply Handbook
Comprehensive catalogue features wide range of new AC/DC and DC/DC products.
They also feature the Auto-track'1 power sequencing function that enables multiple convertors to track each other, or an external voltage, during power-up and power-down.
This built-in sequencing capability significantly simplifies onboard power provision for today's PCBs, where devices such as DSPs, FPGAs and ASICs often demand carefully controlled turn-on and turn-off of their various supply voltages.
Artesyn's PTH series POL convertors offer OEMs a wealth of choice to help simplify design-in.
They are available with nine different current outputs from 6 to 30A, and with nominal input voltages of 3.3, 5 or 12V, to suit the designer's choice of intermediate bus voltage.
The convertors' widely adjustable output voltages enable them to satisfy virtually all the supply requirements of low voltage silicon.
The 3.3V input models can have their outputs set to any voltage from 0.8 to 2.5V DC; the 5V input models have an output range of 0.8 to 3.6V DC; and the 12V input models have an output range of 1.2 to 5.5V DC.
The 12V input models are ideal for use with low-cost intermediate bus convertors, instead of isolated bricks, for applications where cost is critical.
Furthermore, the POL convertors' sequencing capabilities mean that designers can now implement complex distributed power schemes without having to use multiple isolated bricks or purpose-designed circuitry to provide the sequencing functions, thereby achieving significant savings in development time and cost.
The PTH series comprises five categories of nonisolated POL convertors - determined primarily by output current capability and physical size - each of which contains three models covering the nominal input voltage values of 3.3, 5 and 12V.
The smallest of these are the PTHxx050 series convertors, which measure just 22.1 x 12.7mm and are capable of providing up to 6A output current, with conversion efficiencies as high as 95%.
At the other end of the power scale, the PTHxx030 series includes models with a 30A output capability that measure 34.8 x 28.4mm.
All PTH series POL convertors provide a comprehensive set of control features, which vary in content depending upon the particular model.
Many of the models have a pre-bias startup capability, enabling them to be used in situations where feedthrough from a multirail device such as an ASIC might cause a voltage to be present on the convertor output during power-up.
Most models also feature margin up/down control facilities, allowing the output voltage to be momentarily adjusted by +/-5% to dynamically test load circuit operation over a range of supply voltages.
The higher output models offer remote sense facilities to further improve load regulation performance, as well as self-resetting overtemperature protection.
Artesyn's PTH series POL convertors are fully compatible with similar products manufactured by Texas Instruments and Astec Power under the Point-of-Load Alliance, providing customers with a true multisource option.
The convertors carry a full set of international safety approvals, including EN60950 (TUV Product Service) and UL/cUL60950, and have an operating ambient temperature range of -40 to +85C.
Pricing for 10,000-piece quantities starts at US $9.00 for the PTH03050, which is a 6A POL convertor, rising to US $24.86 for the top of the range PTH05030 POL convertor, which has a 30A output capability.
The standard lead time is stock to 6-8 weeks.
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