TI brings integrated hot swap power management controller

Bangalore: Texas Instruments Incorporated (TI)) has introduced the single-chip, dual-slot hot swap manager for Advanced Mezzanine Cards (AdvancedMC) used in wireless, telecom and computing systems, including custom, AdvancedTCA (ATCA) and MicroTCA systems.

According to the company the device improves the flexibility and performance of hot swap power management design in applications ranging from 3G/Beyond 3G wireless base stations and network equipment to high-end data communications. TI’s IC-programmable TPS2359 hot swap controller performs all necessary power interface functions for two AdvancedMCs, while requiring the fewest possible external components. The controller eliminates up to 75 percent of the components required in competing solutions. Enabling seamless plug-and-play insertion and removal of AdvancedMCs during system operation, the device’s two integrated 3.3-V channels provide inrush control, over-current protection and FET ORing control functionality. In addition, two 12-V channels provide the same functions using external FETs and sense resistors. The controller’s 3.3-V current limits are set at the factory to AdvancedMC-compliant levels and the 12-V current limits can be programmed using external resistors.

It is said that the TPS2359’s integrated ORing control capability simplifies power design for MicroTCA power modules or other implementations that manage redundant power in the AdvancedMC slot. When used with a low Rdson N-channel MOSFET, the controller seamlessly manages power distribution, while protecting the system from potentially dangerous reverse-current or transient events by providing an extremely fast turn-off response of 130 nanoseconds.

Jim Bird, TI systems engineer, and board member of the ATCA and MicroTCA standards committees, said, “Internet capacity and the growth of wireless networks continue to place pressure on equipment makers and designers to adopt the ATCA or MicroTCA standards. The TPS2359 and TPS2358 are the only multiple-voltage output hot swap controllers compliant to ATCA and MicroTCA. This achievement will only increase TI’s ability to solve key power design challenges and open the door to allow more rapid adoption.”

Texas Instruments