XRP7725 Datasheet, PDF (2/34 Pages) Exar Corporation – Power Management System

XRP7725
Intel Node Manager Compatible Programmable Power
Management System
FEATURES AND BENEFITS
Programmable Power Benefits
• Fully Configurable
− Output set point
− Feedback compensation
− Frequency set point
− Under voltage lock out
− Input voltage measurement
− Gate drive dead time
• Reduced Development Time
− Configurable and re-configurable for
different Vout, Iout, Cout, and Inductor
values
− No need to change external passives for a
new output specification.
• Higher integration and Reliability
− Many external components used in the
past can be eliminated thereby
significantly improving reliability.
PowerArchitect™ 5.1 Design and
Configuration Software
− Wizard quickly generates a base design
− Calculates all configuration registers
− Projects can be saved and/or recalled
− GPIOs can be configured easily and
intuitively
− Dashboard interface can be used for real-
time monitoring and debug
System Benefits
• Intel Node Manager Compatible current
monitoring.
• Ability to perform remote configuration
updates.
• Ability to analyze operating history, perform
diagnostics and if required, take the supply
off-line after making other system
adjustments.
System Integration Capabilities
• Single supply operation
• I²C interface allows:
− Intel Node Manager Compatible as well as
other Power Management systems
− Modification or reading of internal
registers that control or monitor:
− Output Current
− Input and Output Voltage
− Soft-Start/Soft-Stop Time
− Power Good
− Part Temperature
− Enable/Disable Outputs
− Over Current
− Over Voltage
− Temperature Faults
− Adjusting fault limits and
disabling/enabling faults
− Packet Error Checking (PEC) on I²C
communication
• 5 GPIO pins with a wide range of
configurability
− Fault reporting (including UVLO
Warn/Fault, OCP Warn/Fault, OVP,
Temperature, Soft-Start in progress,
Power Good, System Reset)
− Allows a Logic Level interface with other
non-digital IC’s or as logic inputs to other
devices
• Frequency and Synchronization
Capability
− Selectable switching frequency between
105kHz and 1.2MHz
− Main oscillator clock and DPWM clock can
be synchronized to external sources
− ‘Master’, ‘Slave’ and ‘Stand-alone’
configurations are possible
• Internal MOSFET Drivers
− Internal FET drivers (4Ω/2Ω) per channel
− Built-In Automatic Dead-time adjustment
− 30ns Rise and Fall times
• 4 Independent SMPS channels and 2
LDOs in a 7x7mm TQFN
© 2012 Exar Corporation Confidential
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Rev. 1.0.0