UCD9222-EP Datasheet, PDF (1/37 Pages) Texas Instruments – DIGITAL PWM SYSTEM CONTROLLER WITH 4-BIT, 6-BIT, OR 8-BIT VID SUPPORT

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UCD9222-EP
SLVSBY1 – OCTOBER 2013
DIGITAL PWM SYSTEM CONTROLLER WITH 4-BIT, 6-BIT, OR 8-BIT VID SUPPORT
Check for Samples: UCD9222-EP
FEATURES
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•2 Fully Configurable Two-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/Out Pins Align 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
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly and Test Site
• One Fabrication Site
• Available in Extended (–55°C to 115°C)
Temperature Range
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
DESCRIPTION
The UCD9222 is a two-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 two
VID interfaces. Additionally, the UCD9222 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 UCD9222 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.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TMS320C6670, TMS320C6678, Fusion Digital Power, Auto-ID are trademarks of Texas Instruments.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated