EE Product News

Hot-Swap Controller Tackles -48V Telecomm Backplane Apps

First in a new family of hot-swap controllers, the ADM1070 enables safe board insertion and removal from a live -48V backplane, allowing boards to be re-seated without shutting the system down. Suitable for central office switching applications, such as DSL access multiplexers, high-availability systems, and -48V distributed power systems, the ADM1070 controller typically operates from a negative voltage of up to -80V but can tolerate transient voltages of up to -200V. Other key features of the ADM-1070 are its in-rush current control, over-current and short-circuit protection, and limited consecutive retry functions. It requires only five external components. Fabricated using BiCMOS technology for minimal power consumption, the ADM-1070 is packaged in a tiny, 6-lead SOT23 package. Pricing is $1.70 each/1,000. ANALOG DEVICES INC., Wilmington, MA. (800) 262-5643.


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