UCD90910 Series
10-Rail Sequencer and System Health Monitor with Integrated 10-Channel Fan Controller
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Mounting Type | Output | Operating Temperature▲▼ | Operating Temperature▲▼ | Supplier Device Package | Type | Package / Case | Voltage - Threshold | Number of Voltages Monitored▲▼ | Reset Timeout |
|---|---|---|---|---|---|---|---|---|---|---|
Surface Mount | Open Drain, Push-Pull | 110 °C | -40 °C | 64-VQFN (9x9) | Sequencer | 64-VFQFN Exposed Pad | Adjustable/Selectable | 10 ul | Adjustable/Selectable |
Key Features
• Monitor and Sequence Ten Voltage RailsAll Rails Sampled Every 400 µs12-Bit ADC With 2.5-V, 0.5% Internal VREFSequence Based on Time, Rail and Pin DependenciesFour Programmable Undervoltage and Overvoltage Thresholds per MonitorFan Control and MonitoringSupports Ten Fans With Five User-Defined Speed-vs-Temperature SetpointsSupports Two-, Three-, and Four-Wire FansNonvolatile Error and Peak-Value Logging per Monitor (up to 12 Faults)Closed-Loop Margining for Ten RailsMargin Output Adjusts Rail Voltage to Match User-Defined Margin ThresholdsProgrammable Watchdog Timer and System ResetFlexible Digital I/O ConfigurationMultiphase PWM Clock GeneratorClock Frequencies From 15.259 kHz to 125 MHzCapability to Configure Independent Clock Outputs for Synchronizing Switch-Mode Power SuppliesInternal Temperature SensorJTAG and I2C / SMBus / PMBus InterfacesFull Configuration Update while in Normal Mode CapabilityAPPLICATIONSIndustrial / ATETelecommunications and Networking EquipmentServers and Storage SystemsAny System Requiring Sequencing and Monitoring of Multiple Power RailsMonitor and Sequence Ten Voltage RailsAll Rails Sampled Every 400 µs12-Bit ADC With 2.5-V, 0.5% Internal VREFSequence Based on Time, Rail and Pin DependenciesFour Programmable Undervoltage and Overvoltage Thresholds per MonitorFan Control and MonitoringSupports Ten Fans With Five User-Defined Speed-vs-Temperature SetpointsSupports Two-, Three-, and Four-Wire FansNonvolatile Error and Peak-Value Logging per Monitor (up to 12 Faults)Closed-Loop Margining for Ten RailsMargin Output Adjusts Rail Voltage to Match User-Defined Margin ThresholdsProgrammable Watchdog Timer and System ResetFlexible Digital I/O ConfigurationMultiphase PWM Clock GeneratorClock Frequencies From 15.259 kHz to 125 MHzCapability to Configure Independent Clock Outputs for Synchronizing Switch-Mode Power SuppliesInternal Temperature SensorJTAG and I2C / SMBus / PMBus InterfacesFull Configuration Update while in Normal Mode CapabilityAPPLICATIONSIndustrial / ATETelecommunications and Networking EquipmentServers and Storage SystemsAny System Requiring Sequencing and Monitoring of Multiple Power Rails
Description
AI
The UCD90910 is a ten-rail I2C / PMBus addressable power-supply sequencer and system-health monitor. The device integrates a 12-bit ADC for monitoring up to 13 power-supply voltage, current, or temperature 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 UCD90910 offers support for fan control, margining, and general-purpose PWM functions.
Fan-control signals can be sent using PMBus commands or generated from one of two built-in fan-control algorithms. PWM outputs combined with temperature and fan-speed measurements provide a complete fan-control solution for up to ten independent fans.
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.
The UCD90910 is a ten-rail I2C / PMBus addressable power-supply sequencer and system-health monitor. The device integrates a 12-bit ADC for monitoring up to 13 power-supply voltage, current, or temperature 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 UCD90910 offers support for fan control, margining, and general-purpose PWM functions.
Fan-control signals can be sent using PMBus commands or generated from one of two built-in fan-control algorithms. PWM outputs combined with temperature and fan-speed measurements provide a complete fan-control solution for up to ten independent fans.
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.