John Betten is an application engineer and member of the Group Technical Staff, Texas Instruments Inc., Dallas, Texas. He received his BSEE from the University of Pittsburgh, Pa., in 1985. Email address: j-betten@ti.com Web site: http://www.ti.com/
2 results found for John Betten, displaying items 1 - 2
February 15, 2007[Ideas For Design] Delay Circuitry Controls Supply-Voltage Startup Sequence
For some ICs, supply voltages should be applied in a particular sequence. One example is the subscriber line interface circuit (SLIC), which, depending on the application, may require several negative and/or positive voltages. The larger voltages are generally used to ring the phone, and the lower voltages power the phone while it's off-hook. As an example, consider a design that requires output voltages of 51 V, +60 V, and 27 V, all at load currents of several hundred...
