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UCD9111RHBR, UCD9111RHBT, UCD9112

UCD9111RHBR, UCD9111RHBT, UCD9112 Selling Leads, Datasheet

MFG:TI  Package Cooled:QFN32  D/C:08+PB

UCD9111RHBR, UCD9111RHBT, UCD9112 Picture

UCD9111RHBR, UCD9111RHBT, UCD9112 Datasheet download

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Part Number: UCD9111RHBR

 

MFG: TI

Package Cooled: QFN32

D/C: 08+PB

 

 

 
 
 
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About UCD7100

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Datasheet: UCD7100

File Size: 418385 KB

Manufacturer: TI [Texas Instruments]

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About UCD7100

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Datasheet: UCD7100

File Size: 418385 KB

Manufacturer: TI [Texas Instruments]

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    Contact: Ms.WangFang   MSN:wangfang-12@hotmail.com
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    Fax: 086-021-64016601
    (35)
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About UCD9112RHB

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Datasheet: UCD9112RHB

File Size: 1165695 KB

Manufacturer: Texas Instruments

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UCD9112 General Description

The UCD9112 is dual-phase synchronous buck digital PWM controller that supports point of load (POL) applications. The device is configured thru the use of a graphical user interface (GUI). The loop compensator is configurable with the GUI to meet dynamic converter performance allowing a single hardware design to cover a broad range of POL applications.

In addition to digital control loop, the UCD9112 is able to monitor and manage power supply operatingconditions and report the status to the host systemthrough PMBus. The management parameters are configurable through GUI. The GUI also allows the power supply designer to easily configure the digitalcontrol loop characteristics and generate the gain and phase information for analysis using bode plots.

To ensure balanced outputs on each phase, the UCD9112 incorporates a current balancing scheme. The PWM output of the dual phase controller is capable of operating at a switching frequency of up to 2MHz with a relative phase adjustment of 180o.

The UCD7230 synchronous buck driver has been designed to work with the UCD9112 controller to provide a highly integrated digital power solution. addition to 4A output drive capability, the driver integrates current limit, short circuit protection as well as under-voltage lockout protection. The UCD7230 also has a 3.3V, 10mA linear regulator that provides the supply current for the controller.

UCD9112 Maximum Ratings

  Range UNIT
VD33 relative to Vss -0.3 to 3.6 V
IO pin relative to Vss -0.3 to 3.6 V
Operating junction temperature, Tj -40 to 125 ºC
Storage temperature, Tsj -65 to 150 ºC
Lead Temperature(soldering for 10 sec) 300 ºC


(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.

UCD9112 Features

• Digital dual phase synchronous buck PWM controller with 175ps PWM resolution
• Digital control with programmable PID compensation
• Dual-phase with current balancing capability
• Vin from 4.5V to 14.5V (UCD7230)
• Vout from 1% to 99% of Vin
• Programmable switching frequency, capable of up to 2MHz/Phase
• Programmable soft start and soft stop
• Supports pre-biased start-up
• Internally trimmed 0.5% 800mV Reference
• Remote sensing differential amplifier
• Power supply monitoring via PMBus
• Single bias supply (3.3V VDD)
• Graphical user interface configuration
• Internal thermal sensor
• PMBus Support
  Query Voltage, Current, Faults, etc
  Voltage Setting and Calibration
  Protection Threshold Adjustment
• 32-Pin QFN Package

UCD9112 Typical Application

• Networking Equipment
• Servers
• Storage Systems
• Telecommunications Equipment
• DC Power Distributed Systems
• Industrial / ATE

UCD9112 Connection Diagram

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