Edited by PETech Staff
TI Unveils Step-Down DC-DC Controllers
Expanding its TPS40K™ series of power-efficient dc-dc controllers, Texas Instruments Inc. (TI) recently announced two families of synchronous step-down, voltage-mode, dc-dc controllers with the capability of stepping down input voltage ranges from 8V to 40V and 10V to 55V. They provide added flexibility, power efficiency and ease of use for designers of high-density, 12V, 24V and higher bus power supplies for networking, telecom, wireless base stations, and computer server applications.Available now, the devices supply output voltages down to 0.7 V with a precision reference of better than 1%. The TPS4005x family steps down input voltages ranging from 8V to 40V, and drives external N-channel high-side and synchronous rectifier MOSFET output transistors, providing flexibility and efficiency for power supply design. The TPS4006x family can handle input voltages ranging from 10V to 55V by driving an external P-channel MOSFET on the high side, while driving an external N-channel MOSFET for the synchronous switch. In addition, the devices' gate drive logic incorporates anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectification.
For more information, visit www.ti.com.
Edited by PETech Staff
Sola/Hevi-Duty Introduces Next-Generation Single-Phase Power Supplies
Sola/Hevi-Duty’s smaller, more cost-effective SDN-P family of single-phase 24Vdc DIN Rail power supplies adds value and performance to its broad range of power supplies. Housed in a rugged, compact casing, SDN power supplies provide reliable dc power for industrial process controls, machine tools or other equipment exposed to a harsh factory floor environment, including Class 1, Div. 2 hazardous locations and DeviceNetTM applications. They are available in 2.5A to 20A to fit most any application, with efficiencies up to 90% typical.For more information, visit www.solaheviduty.com.