UCD90124中文资料具有风扇控制的 12 导轨序列发生器和系统安全控制器数据手册TI规格书

描述 Description

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. 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 UCD90124 offers support for fan control, margining, and general-purpose PWM functions.
Fan-control signals can be sent using PMBus commands or generated from one of two built-in fan-control algorithms. PWM outputs combined with temperature and fan-speed measurements provide a complete fan-control solution for up to four 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.

特性 Features

• Monitor and Sequence 12 Voltage Rails
• 12-bit ADC With 2.5-V, 0.5% Internal VREF
• Four Programmable Undervoltage and Overvoltage Thresholds per Monitor
• Supports Two-, Three-, and Four-Wire Fans
• Closed-Loop Margining for 10 Rails
• Programmable Watchdog Timer and System Reset
• Multiphase PWM Clock Generator
• Capability to Configure Independent Clock Outputs for Synchronizing Switch-Mode Power Supplies
• JTAG and I2C/SMBus/PMBus™ Interfaces
• Telecommunications and Networking Equipment
• Embedded Computing
• Any System Requiring Sequencing and Monitoring of Multiple Power Rails
PMBus, Fusion Digital Power are trademarks of Texas Instruments.