Datel Debuts BWR-5/3.3 Series of Dual-Output DC/DC Converters
Datel Corp. (Mansfield, MA) has introduced the BWR-5/3.3 Series of dual-output dc/dc converters featuring load polygon circuitry for current sharing. Each output can source any current up to the converter's power output limit of 33W. The 3.3V output can source up to 7A, and the 5V output can source up to 6A.
Datel reports that the BWR-5/3.3 employs a shared-regulation architecture with a single control loop. Thus, it fully regulates the 3.3V output while simultaneously regulating approximately 66 percent of the 5V output. Datel claims that this scheme enables devices to guarantee ±0.5 and ±1 percent line regulation, as well as ±1 and ±1.5 percent load regulation for the 3V and 5V outputs, respectively. Both the 3.3V and 5V output stages exploit full synchronous rectification for 88 percent efficiency and no-load operation.
The new converters are packaged in 2.0" x 2.0" x 0.45", five-side shielded metal cases. Other features include 1.5kVdc isolation, input pi filter, input under-voltage and over-voltage shutdown, and output over-voltage protection. Additionally, the units have output current limiting, continuous short-circuit protection and thermal shutdown. They have an ambient operating temperature range from -40 to 65 degrees C. All units meet UL1950/EN60950 specifications and carry the CE mark. No supplemental air flow is required.
Datel's new BWR-5/3.3 converters are available in three models, nominal 12V, 24V and 48V input. All are priced at $68 each in singles and $42 each in 10,000-piece quantities.
