UCD9090 Series
10-Rail Power Supply Sequencer and Monitor With ACPI Support
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Supplier Device Package | Package / Case | Number of Voltages Monitored▲▼ | Mounting Type | Type | Voltage - Threshold | Reset Timeout▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Reset |
|---|---|---|---|---|---|---|---|---|---|---|
48-VQFN (7x7) | 48-VFQFN Exposed Pad | 10 ul | Surface Mount | Sequencer | Adjustable/Selectable | 0.0000019999999949504854 s | 110 °C | -40 °C | Active Low | |
48-VQFN (7x7) | 48-VFQFN Exposed Pad | 10 ul | Surface Mount | Sequencer | Adjustable/Selectable | 0.0000019999999949504854 s | 110 °C | -40 °C | Active Low |
Key Features
• 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 26 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 configurationResponse and monitor to GPI-triggered faultEasily cascade multiple power sequencers and take coordinated fault responsesPin-selected rail statesCascading multiple devicesMultiphase 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 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 26 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 configurationResponse and monitor to GPI-triggered faultEasily cascade multiple power sequencers and take coordinated fault responsesPin-selected rail statesCascading multiple devicesMultiphase 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
AI
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.