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VOLUME -24 NUMBER 6
Publication Date: 06/1/2009
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June 2009 Issue
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Calex Intros Programmable Converters
Programmable DC/DC converter.
Concord, CA — Calex Manufacturing Co., Inc. has introduced two new GX Series DC-DC coinverters. The two models in the new series are designed to satisfy a variety of demanding applications. They offer built-in load sharing for easy circuit integration and parallel operation or power source redundancy.
No external components are required to incorporate the load-sharing feature. Up to five of the GX units may be used in parallel to generate up to 1000W of output power.
Both models have an input range of 16 to 40VDC. The output voltages available are 15 and 24VDC. If alternative output voltages are required, both converters feature a very wide trim range of -40 to +10 percent. Thus, the system designer can obtain any output voltage between 9 and 26.4VDC with the standard models.
Output noise is 1 percent of Vout peak-to-peak for both models. A built-in synchronization function allows the converters to be synchronized to a system clock to avoid intermodulation effects. The result is predictable and controllable system noise.
The switching frequency is set at 255kHz. Each unit is isolated input-to-output at 1500VDC. Both models incorporate undervoltage lockout and input reverse voltage protection. Additional protection is provided through pulse-by-pulse current limiting, dead short shutdown and thermal overload protection. Each GX model also offers logic on/off for power conservation as well as remote sensing to compensate for IR drops. In the off state, the GX only draws typically 40mA.
The GX is housed in an industry standard half brick package measuring 2.28" x 2.40" x 0.55". Each model is fully encapsulated for improved thermal performance as well as protection against shock and vibration. The case operating temperature range of the GX is -40C to +100C. The construction utilizes a metal baseplate which can be used as a heatsinking surface for extended temperature use. The GX is available with both RoHS and non-RoHS construction. The GX is designed to meet UL60950. MTBF is greater than 1M hours.
The GX is available from stock to six weeks. Contact the factory for pricing. For more information on the GX Series, contact Calex at 800-542-3355 or 925-687-4411, at email@example.com, or view the data sheet at www.calex.com/pdf/GX.pdf. The GX is backed by Calex's Five Year Warranty. The Calex corporate address is 2401 Stanwell Drive, Concord, California 94520. Calex Mfg. has facilities in Concord, California as well as Tijuana, Mexico.
Contact: Calex Mfg. Co. Inc., 2401 Stanwell Drive, Concord, CA
800-542-3355 or 925-687-4411 fax: 925-687-3333 E-mail: firstname.lastname@example.org www.calex.com Web:
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