UCD9090-Q1 Series

10-Rail Power Supply Sequencer and Monitor With ACPI Support

Catalog

10-Rail Power Supply Sequencer and Monitor With ACPI Support

Part	Reset Timeout	Mounting Type	Reset	Package / Case	Supplier Device Package	Number of Voltages Monitored	Type	Voltage - Threshold	Operating Temperature [Min]	Operating Temperature [Max]	Qualification	Grade
Texas Instruments UCD9090RGZR	2 µs	Surface Mount	Active Low	48-VFQFN Exposed Pad	48-VQFN (7x7)	10	Sequencer	Adjustable/Selectable	-40 °C	110 °C
Texas Instruments UCD9090ARGZT	2 µs	Surface Mount	Active Low	48-VFQFN Exposed Pad	48-VQFN (7x7)	10	Sequencer	Adjustable/Selectable	-40 °C	110 °C
Texas Instruments UCD9090RGZT	2 µs	Surface Mount	Active Low	48-VFQFN Exposed Pad	48-VQFN (7x7)	10	Sequencer	Adjustable/Selectable	-40 °C	110 °C
Texas Instruments UCD9090QRGZRQ1	2 µs	Surface Mount	Active Low	48-VFQFN Exposed Pad	48-VQFN (7x7)	10	Sequencer	Adjustable/Selectable	-40 °C	125 °C	AEC-Q100	Automotive

Catalog

10-Rail Power Supply Sequencer and Monitor With ACPI Support

Key Features

• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to 125°C ambient operating temperature rangeDevice HBM ESD classification level H2Device CDM ESD classification level C4BUCD9090-Q1 Monitor and sequence 10 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 30 fault detail entries)Closed-loop margining for 10 railsMargin output adjusts rail voltage to match user-defined margin thresholdsProgrammable watchdog timer and system resetFlexible digital I/O configurationPin-selected rail statesCascading multiple devicesMulti-phase PWM clock generatorClock frequencies from 15.259 kHz to125 MHzCapability to configure independent clock outputs for synchronizing switch-mode power suppliesJTAG and I2C/SMBus/PMBus™ interfacesQualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to 125°C ambient operating temperature rangeDevice HBM ESD classification level H2Device CDM ESD classification level C4BUCD9090-Q1 Monitor and sequence 10 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 30 fault detail entries)Closed-loop margining for 10 railsMargin output adjusts rail voltage to match user-defined margin thresholdsProgrammable watchdog timer and system resetFlexible digital I/O configurationPin-selected rail statesCascading multiple devicesMulti-phase PWM clock generatorClock frequencies from 15.259 kHz to125 MHzCapability to configure independent clock outputs for synchronizing switch-mode power suppliesJTAG and I2C/SMBus/PMBus™ interfaces

Description

The UCD9090A is a 10-rail PMBus/I2C addressable power supply sequencer and monitor. The device integrates a 12-bit ADC for monitoring up to 10 power supply voltage inputs. Twenty-three GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Ten of these pins offer PWM functionality. Using these pins, the UCD9090A 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 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 UCD9090A is a 10-rail PMBus/I2C addressable power supply sequencer and monitor. The device integrates a 12-bit ADC for monitoring up to 10 power supply voltage inputs. Twenty-three GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Ten of these pins offer PWM functionality. Using these pins, the UCD9090A 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 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.