●The UCD9090-Q1 is a 10-rail PMBus- and 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 are usable 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 UCD9090-Q1 offers support for margining and for general-purpose PWM functions.
●One can achieve specific power states using the pin-selected rail-states feature. This feature allows enabling or disabling any rail by the use of up to three GPIs. This feature is useful for implementing system low-power modes and the Advanced Configuration and Power Interface (ACPI) specification that is used for hardware devices.
●Use of the TI Fusion Digital Power designer software assists in device configuration. This PC-based graphical user interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.
● Qualified for Automotive Applications
● AEC-Q100 Qualified With the Following Results:
● Device Temperature Grade 1: –40°C to 125°C Ambient Operating
●Temperature Range
● Device HBM ESD Classification Level H2
● Device CDM ESD Classification Level C4B
● Monitor and Sequence 10 Voltage Rails
● All Rails Sampled Every 400 µs
● 12-Bit ADC With 2.5-V, 0.5% Internal VREF
● Sequence Based on Time, Rail, and Pin Dependencies
● Four Programmable Undervoltage and Overvoltage Thresholds
●per Monitor
● Nonvolatile Error and Peak-Value Logging
●per Monitor (up to 30 Fault Detail Entries)
● Closed-Loop Margining for 10 Rails
● Margin Output Adjusts Rail Voltage to Match User-Defined
●Margin Thresholds
● Programmable Watchdog Timer and System Reset
● Flexible Digital I/O Configuration
● Pin-Selected Rail States
● Multiphase PWM Clock Generator
● Clock Frequencies From 15.259 kHz to 125 MHz
● Capability to Configure Independent Clock Outputs
●for Synchronizing Switch-Mode Power Supplies
● JTAG, I2C, SMBus, and PMBus Interfaces
