UCD90240 Texas instruments

UCD90240

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UCD90240

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Описание

The UCD90240 is a 24-rail PMBus addressable power sequencer and system manager in a compact 9-mm × 9-mm BGA package. The device provides 24 analog monitor (MON) pins to monitor power-supply voltage, current, or temperature with two 12-bit ADC engines, 24 dedicated enable (EN) pins to control power rail on/off, 24 dedicated margin pins for closed-loop margining, 12 Logic GPO (LGPO) pins to support flexible Boolean logic and state machine functions, and 24 GPIO pins which can be configured as GPI, GPO, System Reset, cascading fault pins, and Watchdog I/O, and so forth. The 24 EN pins and the 12 LGPO pins can be configured to be active driven or open-drain outputs. Nonvolatile Event Logging preserves fault events after power dropout. Black Box Fault Log feature and preserves the status of all rails and I/O pins when the first fault occurs. The cascading feature offers convenient ways to manage up to 96 voltage rails through one SYNC_CLK pin connection. The Fault Pin feature coordinates among cascaded devices to take synchronized fault responses. The Pin-Selected Rail States feature uses up to three GPIs to control up to eight user-defined power states. These states can implement system low-power modes as outlined in the Advanced Configuration and Power Interface (ACPI) specification. The TI Fusion Digital Power™ designer software is an intuitive PC-based graphical user interface (GUI) that can configure, store, and monitor all system operating parameters.

Sequence, Monitor and Margin 24 Voltage Rails
with a 9-mm × 9-mm Small Footprint
Monitor and Respond to User-Defined Faults
Including OV, UV, OC, UC, Temperature, Time-
out, and GPI-Triggered Faults
Flexible Sequence-on/off Dependencies, Delay
Time, Boolean Logic, and GPIO Configuration to
SupportComplex Sequencing Applications
High-accuracy Closed-loop Margining
Active Trim Function Improves Rail Output
Voltage Accuracy
Advanced Nonvolatile Event Logging to Assist
System Debugging
- Single-Event Fault Log (100 Entries)
- Peak Value Log
- Black Box Fault Log to Save Status of all
  Rails and I/O Pins at the First Fault
Easily Cascade Up to 4 Power Sequencers and
Take Coordinated Fault Responses
Easy-to-Use Fusion GUIs Eliminate Coding Efforts
- Online and Offline System Level Design
- Online Monitoring and Debugging
- Manufacturing GUI Optimized for
  Manufacturers
Programmable Watchdog Timer and System
Reset
Pin-Selected Rail State
PMBus 1.2 Compliant

Supply voltage (min) (V)	3.15
Number of supplies monitored	24
Supply voltage (max) (V)	3.63
Iq (typ) (mA)	31.4
Number of sequenced outputs	24
Rating	Catalog