UCD90124 Series
12-Rail Sequencer and System Health Controller with Fan Control
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Operating Temperature▲▼ | Operating Temperature▲▼ | Reset Timeout▲▼ | Type | Supplier Device Package | Package / Case | Mounting Type | Voltage - Threshold | Number of Voltages Monitored▲▼ | Reset |
|---|---|---|---|---|---|---|---|---|---|---|
110 °C | -40 °C | 0.0000019999999949504854 s | Sequencer | 64-VQFN (9x9) | 64-VFQFN Exposed Pad | Surface Mount | Adjustable/Selectable | 12 ul | Active Low |
Key Features
• Monitor and Sequence 12 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 OvervoltageThresholds per MonitorFan Control and MonitoringSupports Four Fans With Five User-DefinedSpeed-vs-Temperature SetpointsSupports Two-, Three-, and Four-Wire FansNonvolatile Error and Peak-Value Logging per Monitor(up to 10 Fault Detail Entries)Closed-Loop Margining for 10 RailsMargin Output Adjusts Rail Voltage to MatchUser-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 forSynchronizing Switch-Mode Power SuppliesInternal Temperature SensorJTAG and I2C/SMBus/PMBus™ InterfacesAPPLICATIONSIndustrial / ATETelecommunications and Networking EquipmentServers and Storage SystemsEmbedded ComputingAny System Requiring Sequencing and Monitoring ofMultiple Power RailsPMBus, Fusion Digital Power are trademarks of Texas Instruments.Monitor and Sequence 12 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 OvervoltageThresholds per MonitorFan Control and MonitoringSupports Four Fans With Five User-DefinedSpeed-vs-Temperature SetpointsSupports Two-, Three-, and Four-Wire FansNonvolatile Error and Peak-Value Logging per Monitor(up to 10 Fault Detail Entries)Closed-Loop Margining for 10 RailsMargin Output Adjusts Rail Voltage to MatchUser-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 forSynchronizing Switch-Mode Power SuppliesInternal Temperature SensorJTAG and I2C/SMBus/PMBus™ InterfacesAPPLICATIONSIndustrial / ATETelecommunications and Networking EquipmentServers and Storage SystemsEmbedded ComputingAny System Requiring Sequencing and Monitoring ofMultiple Power RailsPMBus, Fusion Digital Power are trademarks of Texas Instruments.
Description
AI
The UCD90124 is a 12-rail PMBus/I2C 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 UCD90124 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 four 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 UCD90124 is a 12-rail PMBus/I2C 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 UCD90124 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 four 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.