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UCD9222-EP Datasheet(PDF) 1 Page - Texas Instruments |
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UCD9222-EP Datasheet(HTML) 1 Page - Texas Instruments |
1 / 37 page UCD9222-EP www.ti.com SLVSBY1 – OCTOBER 2013 DIGITAL PWM SYSTEM CONTROLLER WITH 4-BIT, 6-BIT, OR 8-BIT VID SUPPORT Check for Samples: UCD9222-EP 1 FEATURES 2 • Fully Configurable Two-Output Non-Isolated • Over and Under-Voltage Fault Protection DC/DC PWM Controller with support for • Over-Temperature Fault Protection TMS320C6670™ and TMS320C6678™ DSP VID • Enhanced Nonvolatile Memory With Error interface Correction Code (ECC) • Supports Switching Frequencies Up to 2MHz • Device Operates From a Single Supply With an With 250 ps Duty-Cycle Resolution Internal Regulator Controller That Allows • Up To 1mV Closed Loop Resolution Operation Over a Wide Supply Voltage Range • Hardware-Accelerated, 3-Pole/3-Zero • Supported by Fusion Digital Power™ Compensator with Non-Linear Gain for Designer, a Full Featured PC Based Design Improved Transient Performance Tool to Simulate, Configure, and Monitor • Supports Multiple Soft-Start and Soft-Stop Power Supply Performance. Configurations Including Prebias Start-up APPLICATIONS • Supports Voltage Margining and Sequencing • Networking Equipment • Sync In/Out Pins Align DPWM Clocks Between Multiple UCD92xx Devices • Telecommunications Equipment • 12-Bit Digital Monitoring of Power Supply • FPGA, DSP, and Memory Power Parameters Including: SUPPORTS DEFENSE, AEROSPACE, – Input Current and Voltage AND MEDICAL APPLICATIONS – Output Current and Voltage • Controlled Baseline – Temperature at Each Power Stage • One Assembly and Test Site – Auxiliary ADC Inputs • One Fabrication Site • Multiple Levels of Over-current Fault Protection: • Available in Extended (–55°C to 115°C) Temperature Range – External Current Fault Inputs • Extended Product Life Cycle – Analog Comparators Monitor Current Sense Voltage • Extended Product-Change Notification – Current Continually Digitally Monitored • 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. 1 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. 2 TMS320C6670, TMS320C6678, Fusion Digital Power, Auto-ID are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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