UCD90910是TI公司的一款无产品，UCD90910是具有集成 10 通道风扇控制器的 10 导轨序列发生器和系统安全管理器，本页介绍了UCD90910的产品说明、应用、特性等，并给出了与UCD90910相关的TI元器件型号供参考。
UCD90910 - 具有集成 10 通道风扇控制器的 10 导轨序列发生器和系统安全管理器 - 无 - 序列发生器 - TI公司（Texas Instruments，德州仪器）
The UCD90910 is a ten-rail I2C / PMBus addressable power-supply sequencerand system-health monitor.The device integrates a 12-bit ADC for monitoring up to 13 power-supply voltage, current, or temperature 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 UCD90910 offers support for fan control, margining, and general-purpose PWM functions.
Fan-controlsignalscanbesentusingPMBus commands or generated from one of two built-in fan-control algorithms.PWMoutputscombinedwith temperature and fan-speed measurements provide a complete fan-control solution for up to ten independent fans.
The TI Fusion Digital Power designer software is provided for device configuration. This PC-based graphical user interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.
- Monitor and Sequence Ten 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
- Fan Control and Monitoring
- Supports Ten 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 12 Faults)
- Closed-Loop Margining for Ten 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 125MHz
- Capability to Configure Independent Clock Outputs for Synchronizing Switch-Mode Power Supplies
- Internal Temperature Sensor
- JTAG and I2C / SMBus / PMBus Interfaces
- Full Configuration Update while in Normal Mode Capability
- APPLICATIONS
- Industrial / ATE
- Telecommunications and Networking Equipment
- Servers and Storage Systems
- Any System Requiring Sequencing and Monitoring of Multiple Power Rails
