UCD90910系列介绍资料

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UCD90910

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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

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The UCD90910 is a ten-rail I²C / PMBus 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 UCD90910 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 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 V_REF
- 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 125 MHz
- 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

Supply voltage (min) (V)	3
Number of supplies monitored	10
Supply voltage (max) (V)	3.6
Iq (typ) (mA)	50
Number of sequenced outputs	10
Rating	Catalog
Operating temperature range (°C)	-40 to 125

VQFN (RGC)

81 mm² 9 x 9

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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

4000-306-326