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UCD90120A Datasheet(PDF) 1 Page - Texas Instruments |
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UCD90120A Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 58 page  Vmarg Closed Loop Margining UCD90120A VMON GPIO 12V GPIO 3.3V OUT VMON 1.8V OUT 0.8V OUT I0.8V TEMP0.8V VMON VMON VMON VMON I12V TEMP12V VMON VMON INA196 I12V 12V OUT 3.3V OUT 12V OUT 1.8V OUT GPIO GPIO 0.8V OUT PWM 2MHz INA196 I0.8V WDI from main processor GPIO WDO GPIO TEMP IC TEMP0.8V TEMP IC TEMP12V POWER_GOOD GPIO WARN_OC_0.8V_ OR_12V GPIO SYSTEM RESET GPIO OTHER SEQUENCER DONE (CASCADE INPUT) GPIO I2C/ PMBUS JTAG /EN DC-DC 1 VOUT VFB VIN /EN LDO1 VOUT VIN /EN DC-DC 2 VOUT VFB VIN 3.3V Supply Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design UCD90120A SLVSAN9B – APRIL 2011 – REVISED DECEMBER 2015 UCD90120A 12-Rail Power Supply Sequencer and Monitor With ACPI Support Specific power states can be achieved using the Pin- 1 Features Selected Rail States feature. This feature allows with 1 • Monitor and Sequence 12 Voltage Rails the use of up to 3 GPIs to enable and disable any – All Rails Sampled Every 400 μs rail. This is useful for implementing system low-power modes and the Advanced Configuration and Power – 12-bit ADC With 2.5-V, 0.5% Internal VREF Interface (ACPI) specification that is used for – Sequence Based on Time, Rail and Pin hardware devices. Dependencies The TI Fusion Digital Power™ designer software is – Four Programmable Undervoltage and provided for device configuration. This PC-based Overvoltage Thresholds per Monitor graphical user interface (GUI) offers an intuitive • Nonvolatile Error and Peak-Value Logging per interface for configuring, storing, and monitoring all Monitor (up to 12 Fault Detail Entries) system operating parameters. • Closed-Loop Margining for 10 Rails Device Information(1) – Margin Output Adjusts Rail Voltage to Match PART NUMBER PACKAGE BODY SIZE (NOM) User-Defined Margin Thresholds UCD90120A VQFN (64) 9.00 mm × 9.00 mm • Programmable Watchdog Timer and System (1) For all available packages, see the orderable addendum at Reset the end of the data sheet. • Flexible Digital I/O Configuration • Pin-Selected Rail States Simplified Schematic • 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 and I2C/SMBus/PMBus™ Interfaces 2 Applications • Industrial / ATE • Telecommunications and Networking Equipment • Servers and Storage Systems • Any System Requiring Sequencing and Monitoring of Multiple Power Rails 3 Description The UCD90120A is a 12-rail PMBus/I2C addressable power-supply sequencer and monitor. The device integrates a 12-bit ADC for monitoring up to 12 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 UCD90120A offers support for margining, and general-purpose PWM functions. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Similar Part No. - UCD90120A_15 |
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Similar Description - UCD90120A_15 |
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