UCD90160A Series

16-Rail PMBus Power Supply Sequencer and System Manager with ACPI Support

Catalog

16-Rail PMBus Power Supply Sequencer and System Manager with ACPI Support

Part	Mounting Type	Type	Package / Case	Reset	Reset Timeout	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Threshold	Number of Voltages Monitored
Texas Instruments UCD90160RGCT	Surface Mount	Sequencer	64-VFQFN Exposed Pad	Active Low	2 µs	64-VQFN (9x9)	-40 °C	110 °C	Adjustable/Selectable	16
Texas Instruments UCD90160ARGCT	Surface Mount	Sequencer	64-VFQFN Exposed Pad	Active Low	2 µs	64-VQFN (9x9)	-40 °C	110 °C	Adjustable/Selectable	16

Catalog

16-Rail PMBus Power Supply Sequencer and System Manager with ACPI Support

Key Features

• Monitor and sequence 16 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 monitorNonvolatile error and peak-value logging per monitor (up to 12 fault detail entries)Closed-loop margining for 10 railsMargin output adjusts rail voltage to match user-defined margin thresholdsProgrammable watchdog timer and system resetEasily cascade multiple power sequencers and take coordinated fault responsesPin selected rail states for ACPI supportFlexible digital I/O configurationCascading multiple devicesResponse and monitor to GPI-triggered faultMulti-phase PWM clock generatorClock frequencies from 15.259 kHz to 125 MHzCapability to configure independent clock outputs for synchronizing switch-mode power suppliesJTAG and I2C/SMBus/PMBus™ interfacesMonitor and sequence 16 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 monitorNonvolatile error and peak-value logging per monitor (up to 12 fault detail entries)Closed-loop margining for 10 railsMargin output adjusts rail voltage to match user-defined margin thresholdsProgrammable watchdog timer and system resetEasily cascade multiple power sequencers and take coordinated fault responsesPin selected rail states for ACPI supportFlexible digital I/O configurationCascading multiple devicesResponse and monitor to GPI-triggered faultMulti-phase PWM clock generatorClock frequencies from 15.259 kHz to 125 MHzCapability to configure independent clock outputs for synchronizing switch-mode power suppliesJTAG and I2C/SMBus/PMBus™ interfaces

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. 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.