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TI non-isolated modules offer 50 percent size reduction

Posted: 09 Dec 2004 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ti? module? power system design? ptn78000?

Texas Instruments Inc. (TI) announced three new wide-input, non-isolated modules that promise to simplify power system design.

Fifty percent smaller than their predecessors, the PTN78000, PTN78060 and PTN78020 series of 1.5A, 3A and 5A devices can be used in a wide variety of applications that require input voltages from 7V to 36V, including industrial, test and measurement instruments, distributed power, workstations and medical equipment.

The third-generation '78 series' high-performance modules are lead-free and RoHS compliant, and provide a precisely regulated output voltage, which is adjustable via an external resistor from 2.5V to 12.6V. Providing excellent line and load regulation, the modules deliver a full load power conversion efficiency of 85 percent with a 5V output, said TI.

Rated for operation between the -40C to 85C temperature range, these new devices feature On/Off inhibit control, short-circuit and over-current protection, and over-temperature shutdown. In addition, its double-sided, open-frame construction and small footprint make them suitable for high density designs.

The PTN78000 comes in a small, 18.9-by-12.5-by-8.5mm module, the PTN78060 in a 25.2-by-15.7-by-9mm module, and the PTN78020 in a 37.9-by-22.1-by-9mm module. Suggested pricing is $8 each for the PTN78000, $11 for the PTN78060 and $15 for the PTN78020, in quantities of 1,000 units. All devices are available in through-hole or surface mount pin configurations. Surface mount devices are available on tape and reel.

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