ISPPAC-POWR1220AT8

www.DataSheet4U.com ispPAC-POWR1220AT8 In-System Programmable Power Supply Monitoring, Sequencing and Margining Controller October 2005 Preliminary Data Sheet ® Features ■ Monitor, Control, and Margin Multiple Power Supplies Simultaneously monitors up to 12 power supplies Provides up to 20 output control signals Provides up to eight analog outputs for margining/trimming power supply voltages Programmable digital and analog circuitry Application Block Diagram Primary Supply 3.3V Primary Supply 2.5V Primary Supply 1.8V Primary Supply Trim and margin up to eight power supplies Dynamic voltage control through I2C Four hardware selectable voltage profiles Independent Digital Closed-Loop Trim function for each output T r i m / Ma r g i n ■ Power Supply Margin and Trim Functions POL#1 Primary Supply POL#N Other Control/Supervisory Signals 8 Analog Trim Outputs Power Supply Margin/Trim Control Block ADC 4 Timers 6 Digital Inputs I2C Interface 16 Digital Outputs 4 MOSFET Drivers ■ Embedded PLD for Sequence Control 12 Analog Inputs and Voltage Monitors Digital Monitoring 48-macrocell CPLD implements both state machines and combinatorial logic functions Enables Voltage Monitoring Other Board Circuitry ■ Embedded Programmable Timers ■ Analog Input Monitoring 12 independent analog monitor inputs Differential inputs for remote ground sense Two programmable threshold comparators per analog input Hardware window comparison 10-bit ADC for I2C monit...