Supertex has introduced a new power supply sequencer IC with four outputs, each capable of sequencing power-up and power-down. The PS12 delivers an integrated power sequencing solution for use in telecoms and networking systems that saves board space and increases system accuracy and reliability. The PS12 features an input voltage monitor, a power-on reset generator, four open drain outputs, and seven timers. It controls up to four loads through outputs that can connect to the enable inputs of power supply modules either directly or through level-shifting or isolating drivers. The PS12 also features individually programmable delays of 5 to 200 ms, an input voltage monitor, and an input voltage range of up to 90 V. The PS12 comes in a 16-lead SO package.
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