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Product details

Parameters

Number of outputs 4 Compensator 3-pole/3-zero DPWM resolution (ps) 250 Operating temperature range (C) -40 to 125, -40 to 85 Rating Catalog open-in-new Find other Digital power isolated controllers

Package | Pins | Size

VQFN (RGC) 64 81 mm² 9 x 9 open-in-new Find other Digital power isolated controllers

Features

  • Fully Configurable Four-Output Non-Isolated DC/DC
    PWM Controller with support for TMS320C6670™ and
    TMS320C6678™ DSP VID interface
  • Supports Switching Frequencies Up to 2MHz With 250 ps
    Duty-Cycle Resolution
  • Up To 1mV Closed Loop Resolution
  • Hardware-Accelerated, 3-Pole/3-Zero Compensator with
    Non-Linear Gain for Improved Transient Performance
  • Supports Multiple Soft-Start and Soft-Stop Configurations
    Including Prebias Start-up
  • Supports Voltage Margining and Sequencing
  • Sync In Pin Aligns DPWM Clocks Between Multiple UCD92xx Devices
  • 12-Bit Digital Monitoring of Power Supply Parameters Including:
    • Input Current and Voltage
    • Output Current and Voltage
    • Temperature at Each Power Stage
    • Auxiliary ADC Inputs
  • Multiple Levels of Over-current Fault Protection:
    • External Current Fault Inputs
    • Analog Comparators Monitor Current Sense Voltage
    • Current Continually Digitally Monitored
  • Over and Under-voltage Fault Protection
  • Over-temperature Fault Protection
  • Enhanced Nonvolatile Memory With Error Correction Code (ECC)
  • Device Operates From a Single Supply With an Internal Regulator
    Controller That Allows Operation Over a Wide Supply Voltage Range
  • Supported by Fusion Digital Power™ Designer, a Full Featured
    PC Based Design Tool to Simulate, Configure, and Monitor
    Power Supply Performance.
  • APPLICATIONS
    • Networking Equipment
    • Telecommunications Equipment
    • FPGA, DSP, and Memory Power

TMS320C6670, TMS320C6678, Fusion Digital Power, Auto-ID are trademarks of Texas Instruments.

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Description

The UCD9244 is a four-rail synchronous buck digital PWM controller designed for non-isolated DC/DC power applications. This device integrates dedicated circuitry for DC/DC loop management with support for up to four VID interfaces. Additionally, the UCD9244 has flash memory and a serial interface to support configurability, monitoring and management.

Several Voltage Identification (VID) modes are supported, including a 4-bit parallel interface, a 6-bit interface and an 8-bit serial interface.

The UCD9244 was designed to provide a wide variety of desirable features for non-isolated DC/DC converter applications while minimizing the total system component count by reducing external circuits. The solution integrates multi-loop management with sequencing, margining and tracking to optimize for total system efficiency. Additionally, loop compensation and calibration are supported without the need to add external components.

To facilitate configuring the device, the Texas Instruments Fusion Digital Power™ Designer is provided. This PC based Graphical User Interface offers an intuitive interface to the device. This tool allows the design engineer to configure the system operating parameters for the application, store the configuration to on-chip non-volatile memory and observe both frequency domain and time domain simulations for each of the power stage outputs.

TI has also developed multiple complementary power stage solutions – from discrete drivers in the UCD7k family to fully tested power train modules in the PTD family. These solutions have been developed to complement the UCD92xx family of system power controllers.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet Digital PWM System Controller with 4-bit, 6-bit, or 8-bit VID Support datasheet (Rev. A) Jan. 31, 2011
Application note Digital Loop Exemplified Sep. 23, 2011
User guide Using the UCD92xx Digital Point-of-Load Controller Apr. 13, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

DEBUG PROBE Download
XDS200 USB Debug Probe
TMDSEMU200-U
295
Description

The Spectrum Digital XDS200 is the first model of the XDS200 family of debug probes (emulators) for TI processors. The XDS200 family features a balance of low cost with good performance between the super low cost XDS110 and the high performance XDS560v2, while supporting a wide variety of standards (...)

Features

The XDS200 is the mid-range family of JTAG debug probes (emulators) for TI processors. Designed to deliver good performance and the most common features that place it between the low cost XDS110 and the high performance XDS560v2, the XDS200 is the balanced solution to debug TI microcontrollers (...)

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
Core voltage ~1.0V at up to 15A for Nyquist uP; 4 of them per UCD9244 plus Test load for one output
PMP6594 — PMP6594 is a UCD9244 digital controller with four UCD74110 drive / power stages for core voltages (~1VDC) with VID requirements. Input can be 5V or 9VDC. VID is where the processor tells the power supply what voltage it wants for its main functions to optimize speed and power loss in the processor (...)
Design files
REFERENCE DESIGNS Download

CAD/CAE symbols

Package Pins Download
VQFN (RGC) 64 View options

Ordering & quality

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