Dallas, Texas TI introduced a family of ORing power controllers that improves power distribution in 12-V blade servers, N+1 telecom systems and redundant, low-voltage processor power supplies. The integrated circuits provide a high-efficiency replacement for ORing diodes, and offer intelligent monitoring and control of power supplies to prevent bus transient events from causing board-damaging faults or voltage spikes during operation.
TI's TPS241x family support input voltages of 3 V to 18 V, and can control power supply voltages down to 0.8-V. The TPS241x devices manage power distribution to multiple supplies, while protecting the system from potentially dangerous reverse-current or transient events by providing a fast turn-off response of 130 nanoseconds. In addition, the controllers feature a programmable turn-off threshold and an input filtering function to protect the power supply's integrity. The TPS2410 and TPS2412 controllers incorporate linear gate control and utilize ON/OFF gate control to support low-power buses that may experience large transient steps.
Pricing: $1.70 each in 1,000-piece quantities
Data Sheet: http://focus.ti.com/lit/ds/symlink/tps2410.pdf
Texas Instruments, 800-336-5236, www.ti.com