ISL8724 - Power Sequencing Controllers
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The four channel ISL8723 (ENABLE input), ISL8724 (ENABLE input) offer the designer 4 voltage control when it is required that all four rails are in minimal compliance prior to turn on and that compliance must be maintained during operation.
The ISL8723 has a low power standby mode when it
ISL8723, ISL8724 Power Sequencing Controllers The Intersil ISL8723 and ISL8724 are 4 channel sequencers controlling the on and off sequence of voltages with undervoltage supply fault protection and a “sequence completed” signal (RESET).
For larger systems, more than 4 voltages can be sequenced by a simple connection of multiple IC's.
These sequencers use an integrated charge pump to drive 4 external low-cost N-channel MOSFET switch gates above the IC bias voltage by 5.3V.
These IC's can be bias
ISL8724 Features
* Enables arbitrary turn-on and turn-off sequencing of up to four power supplies (0.7V to 5V)
* Operates from 2.5V to 5V supply voltage
* Supplies VDD +5.3V of charge pumped gate drive
* Adjustable voltage slew rate for each rail
* Multiple sequencers can be e
