Establish power sequencing patterns in small to large multi-rail power systems

Altera Enpirion's ES1030QI power rail sequencer is now available from mouser stock. The low-power small form factor device is ideal for establishing power sequencing patterns in small to large multi-rail power systems, says the company. The ES1030QI provides nested sequencing of four outputs per device, with the ability to attach additional devices in a sequencing chain for at least 16 outputs. A simple resistor divider establishes a precise qualification time window by determining if each power rail is valid at the correct time. The device uses power good signals from the regulators to provide feedback of valid power. The separate fault I/O signals and aggregate PG signals further enhance the device's utility. Optimized for space-constrained systems, the sequencer is available in a 2mm x 3mm STQFN package.