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Overview
The Power Manager II ispPAC-POWR1220AT8 offers a superior solution for power supply monitoring, trimming and voltage measurement. This programmable device replaces multiple ICs, including reset generators, supervisor ICs, watchdog timers, sequencing/tracking and hot-swap ICs.
Please select a document category from the selection on the left-hand side of this page for more information on the ispPAC-POWR1220AT8.
 Block Diagram 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
- Power Supply Margin and Trim Functions
- 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
- Embedded PLD for Sequence Control
- 48-macrocell CPLD implements both state
machines and combinatorial logic functions
- Embedded Programmable Timers
- Four independent timers
- 32μs to 2 second intervals for timing sequences
- 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 monitoring
- High-Voltage FET Drivers
- Power supply ramp up/down control
- Programmable current and voltage output
- Independently configurable for FET control or digital output
- 2-Wire (I2C/SMBus™ Compatible) Interface
- Comparator status monitor
- Direct control of inputs and outputs
- Dynamic trimming/margining control
- 3.3V Operation, Wide Supply Range 2.8V to 3.96V
- In-system programmable through JTAG
- Industrial temperature range: -40°C to +85°C
Typical Application
The Power Manager II POWR1220AT8 provides a standard command interface to the IPMC while performing FRU specific payload power management functions using the on-chip CPLD. The POWR1220AT8 also converts all on board DC-DC converters into accurate digitally controlled supplies.
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