Texas Instruments UCD90124
The UCD90124 is a 12-rail PMBus/I2C addressable power-supply sequencer and system-health monitor. The device integrates a 12-bit ADC for monitoring up to 13 power-supply voltage, current, or temperature inputs. Using these pins, the UCD90124 offers support for fan control, margining, and general-purpose PWM functions.| Part No. | UCD90124 |
|---|---|
| Datasheet | UCD90124 Download |
| Manufacturer |  Texas Instruments |
| Description | 12-Rail Sequencer and System Health Monitor |
| Buy | Stock & Price |
FEATURES
1●2 Monitor and Sequence 12 Voltage Rails – All Rails Sampled Every 400 ms – 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
● Fan Control and Monitoring – Supports Four Fans With Five User-Defined Speed-vs-Temperature Setpoints – Supports Two-, Three-, and Four-Wire Fans
● Nonvolatile Error and Peak-Value Logging per Monitor (up to 10 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
● 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
● Internal Temperature Sensor
● JTAG and I2C/SMBus/ PMBus™ Interfaces
APPLICATIONS
● Industrial / ATE● Telecommunications and Networking...
