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UCD90160A Datasheet PDF - Texas Instruments

Part NumberUCD90160A Texas-Instruments
Texas Instruments Texas-Instruments
Description16-Rail Power Supply Sequencer and Monitor With ACPI Support
UCD90160A Datasheet PDF : UCD90160A pdf   


UCD90160A image

Description
The UCD90160A is a 16-rail PMBus/I2C addressable power supply sequencer and monitor. The device integrates a 12-bit ADC for monitoring up to 16 power supply voltage inputs. Twenty-six GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Twelve of these pins offer PWM functionality. Using these pins, the UCD90160A offers support for margining, and general-purpose PWM functions.
Specific power states can be achieved using the Pin-Selected Rail States feature. This feature allows with the use of up to 3 GPIs to enable and disable any rail. This is useful for implementing system low-power modes and the Advanced Configuration and Power Interface (ACPI) specification that is used for hardware devices.
The Fault Pin feature enables easily cascading multiple devices and coordinates among those devices to take synchronized fault responses.
The TI Fusion Digital Power™ designer software is provided for device configuration. This PC-based graphical user interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.

Features
• Monitor and Sequence 16 Voltage Rails
   – All Rails Sampled Every 400 μs
   – 12-bit ADC With 2.5-V, 0.5% Internal VREF
   – Sequence Based on Time, Rail and Pin
      Dependencies
   – Four Programmable Undervoltage and
      Overvoltage Thresholds per Monitor
• Nonvolatile Error and Peak-Value Logging per
   Monitor (up to 12 Fault Detail Entries)
• Closed-Loop Margining for 10 Rails
   – Margin Output Adjusts Rail Voltage to Match
      User-Defined Margin Thresholds
• Programmable Watchdog Timer and System
   Reset
• Easily Cascade Multiple Power Sequencers and
   Take Coordinated Fault Responses
• Pin Selected Rail States for ACPI Support
• Flexible Digital I/O Configuration
• Cascading Multiple Devices
• Response and Monitor to GPI-Triggered Fault
• Multiphase PWM Clock Generator
   – Clock Frequencies from 15.259 kHz to 125
      MHz
   – Capability to Configure Independent Clock
      Outputs for Synchronizing Switch-Mode Power
      Supplies
• JTAG and I2C/SMBus/PMBus™ Interfaces

Applications
• Industrial and ATE
• Telecommunications and Networking Equipment
• Servers and Storage Systems
• Systems Requiring Sequencing and Monitoring of
   Multiple Power Rails

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