Texas Instruments UCD9090
The UCD9090 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. Using these pins, the UCD9090 offers support for margining, and general-purpose PWM functions.| Part No. | UCD9090 |
|---|---|
| Datasheet | UCD9090 Download |
| Manufacturer |  Texas Instruments |
| Description | 10-Channel Power-Supply Sequencer/Monitor |
| Buy | Stock & Price |
FEATURES
●1 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
● Cascading multiple devices
● Multi-phase 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 and ATE● Telecommunications and networking equipment
● Servers and storage systems
● Any system requiring sequencing and monitoring of multiple power rails 3 Desc...
