Texas Instruments UCD9081
The UCD9081 power-supply sequencer controls the enable sequence of up to eight independent voltage rails and provides four general-purpose digital outputs (GPO). The device operates from a 3.3-V supply, provides 3.2-mV resolution of voltage rails, and requires no external memory or clock. The UCD9081 monitors the voltage rails independently and has a high degree of rail sequence and alarm response options.| Part No. | UCD9081 |
|---|---|
| Datasheet | UCD9081 Download |
| Manufacturer |  Texas Instruments |
| Description | 8-Channel Power-Supply Sequencer/Monitor |
| Buy | Stock & Price |
FEATURES
●1 Single Supply Voltage: 3.3 V● Low Power Consumption: 3-mA Nominal Supply Current
● Sequences and Monitors Eight Voltage Rails
● Rail Voltages Sampled With 3.2-mV Resolution
● Internal or External Voltage Reference
● Four Configurable Digital Outputs for Power-On- Reset and Other Functions
● Configurable Digital Output Polarity
● Flexible Rail Sequencing Based on Timeline (ms), Parent Rail Regulation Window, or Parent Rail Achieving Defined Threshold
● Independent Under- and Overvoltage Thresholds Per Rail
● Configurable Regulation Expiration Times Per Rail
● Flexible Alarm Processing: Ignore, Log Only, Retry n Times, Retry Continuously, Sequence, Parent Rail Can Shutdown Child Rails
● Alarm Conditions Logged With Timestamp: Underand Overvoltage Glitch, Sustained Under- and Overvoltage, Rail Did Not Start
● On-Chip Flash for Storing User Data
● Error Logging to Flash for System Failure Analysis
● I2C™ Interface for Configuration and Monitoring
● Microsoft Windows™ GUI for C...
