Hold-Up Module is for systems with input current up to 10 A.

Press Release Summary:

Model MTH100 hold-up module is designed for maintaining short-term power to critical avionic and vetronic systems during power dropouts. Designed for use in systems with input current up to 10 A, unit accommodates input range of +10-40 Vdc and charges capacitors to voltage typically from +36 or +45 Vdc. Charger output voltage is programmable, allowing module to work with military and industrial DC/DC converters. Device operates over temperatures from -55 to +100°C.

Original Press Release:

10 Amp Hold-up Module Reduces Capacitance Required by over 80%

XP Power today announced the MTH100 hold-up module designed for maintaining short-term power to critical avionic and vetronic systems in the event of power dropouts. These encapsulated modules significantly reduce the amount of bulk hold capacitance required, often by as much as 80%.

The MTH100 is designed for use in systems with an input current up to 10 A. The charger output voltage can be programmed allowing it to work with both military and industrial DC/DC converters. Accommodating a wide input range of +10 to +40 VDC, the MTH100 module automatically detects the input drop-out and initiates extended hold-up utilizing capacitors charged to a high voltage.

Charging the capacitors to a higher voltage than the nominal system voltage of +28 VDC, typically +36 VDC or +45 VDC, significantly reduces the amount of capacitance required. Consider a power supply system that needs to operate through a power dropout of 200ms while supporting a 30 Watt load without interruption using a DC/DC converter with a minimum input of 10 V. Without a hold-up module, if the power dropout occurs at 16 Vin, the system would need over 90,000 uF of capacitance. Using the MTH100 module, the system needs only 7,000 uF of capacitance, or 92% less. This results in cost, weight and board space savings, a great aid to engineers faced with the challenge of squeezing large numbers of bulky components into every reducing system spaces while meeting dropout and hold-up criteria.

Measuring just 40 x 26 x 12.7 mm (1.57 x 1.02 x 0.5 inches), the base plate cooled MTH100 module is typically 98% efficient, operate across the temperature range of -55 to +100 degrees C and comes with a full 3 year warranty.

The MTH100 is priced $179.40 each in OEM quantities from either Newark or direct from XP Power.

For further information and reader enquiries:

Duane Darrow, XP Power, 990 Benecia Avenue, Sunnyvale, CA 94085

Tel: (408)732-7777

Fax: (408)732-2002

Email: ddarrow@xppower.com

Web: www.xppower.com

William Sng SK, XP Power (Singapore) PTE LTD

Tel: +65 68469368

Fax: +65 67418730

Email: wsng@xppower.com

Web: www.xppower.com

XP Power is committed to being a leading provider of power solutions, including AC-DC power supplies and DC-DC converters. With ISO9001:2000, XP Power offers total quality, from in-house design through to manufacturing facilities around the world. The company offers the widest range of power products available from one source and unrivalled technical and customer support, aiding both vendor consolidation and cost reduction programmes. XP has 27 sales offices throughout Europe, North America and Asia.

XP Power Ltd, a London Stock Exchange listed public company, has design centres in Fyfield (UK), Orange County (California), and Singapore, which also serves as the company's headquarters. Manufacturing is carried out near Shanghai, China. The design teams push back the boundaries of cost and technology, providing market leading power products. Dedicated in-house Engineered Solutions teams provide customer specific solutions, with rapid response times. The applications team provide expert technical support to help customers integrate and use XP power products worldwide.

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