Texas Instruments UCD9224EVM-464 Manual de usuario

Using the UCD9224EVM-464

User's Guide

Literature Number: SLUU443

March 2011

User's Guide

SLUU443–March 2011

UCD9224EVM-464 Digitally Controlled Dual-Rail POL

1This user guide describes the evaluation module (EVM) for the UCD9224 Digital PWM System Controller

and the UCD7242 Digital Dual Synchronous Buck Power Driver. The UCD9224 is a multi-rail, multi-phase

synchronous buck digital PWM controller designed for non-isolated DC/DC power applications. This

device combines dedicated circuitry for loop management with a microcontroller, flash memory, and a

serial interface to support configurability, monitoring and management. The UCD7242 Dual

Synchronous-Buck Power Driver, the foundation of the PTD08D210W Digital PowerTrain™ module,

simplifies POL rail development by integrating and optimizing many of the power train components (driver,

MOSFETS, current sensing and protection features) needed to realize two voltage phases/rails.

2 Description

The UCD9224EVM-464 includes the Digital Power Controller paired with the UCD7242 driver on the

PTD08D210W module to create a power system consisting of two single-phase, point-of-load (POL)

power rails, each capable of up to 10 A of output current.

For evaluation purposes, the EVM is supplied pre-configured to operate from a 12-V +/- 10% input voltage

source and will produce stepped down voltages of 2.5 V (VOUT1) and 1.2 V (VOUT2) without user intervention

once the input voltage has reached the power system’s under-voltage lockout that is set within the

controller.

The PMBus™ compatible serial data interface included on the EVM allows the user to connect the power

system to a Windows based host computer running the Fusion Digital Power™ Designer software with the

USB Interface Adapter EVM (refer to the Section 5: Test Setup for links to the software and adapter

website and documentation). The UCD9224EVM-464 output rails can then be monitored and controlled or

further configured within the functional limits of the PTD08D210W module (VIN from 4.5 V to 14.0 V and

VOUT from 0.7 V to 3.6 V), refer to document SLUU490 - Using the UCD92xx Digital Point of Load

Controller for additional information.

For power systems requiring the features found in the UCD9224, (up to 2 rails/4 phases but needing

additional phases/rails then), the UCD9246, (up to 4 rails/6 phases), and UCD9248, (up to 4 rails/8

phases), digital controllers are available. Additionally, complex power systems can be implemented with

multiple controllers, all sharing the same PMBus ™ interface, and configured to operate as a complete

power solution.

2.1 Typical Applications

• Industrial / Automated Test Systems

• Telecom / Networking Equipment

• Servers

• Storage Systems

• FPGA, DSP and Memory Systems

2UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443–March 2011

Submit Documentation Feedback

www.ti.com

Description

2.2 Features

UCD9224

• Fully Configurable Multi-Output and Multi-Phase Non-Isolated DC/DC PWM Controller

• Controls Up to 2 Voltage Rails and Up to 4 Phases

• Supports Switching Frequencies Up to 2 MHz with 250-ps Duty-Cycle Resolution

• Up To 1-mV 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 Tracking, Margining and Sequencing

• Supports Current and Temperature Balancing for Multi-Phase Power Stages

• Supports Phase Adding/Shedding for Multi-Phase Power Stages

• Sync In/Out Pins Align DPWM Clocks Between Multiple UCD92xx Devices

• 12-Bit Digital Monitoring of Power Supply Parameters Including:

– Input/Output Current and Voltage

– Temperature at Each Power Stage

• 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™ (UCD9224 Datasheet) Designer, a Full Featured PC Based

Design Tool to Simulate, Configure, and Monitor Power Supply Performance

SLUU443–March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL

Description

www.ti.com

PTD08D210W Module

• Dual 10-A Outputs

• Programmable Wide-Output Voltage

– 0.7 V to 3.6 V

• 4.75-V to 14-V Input Voltage

• Efficiencies up to 96%

• Digital I/O

– PWM input

– Fault Flag (FF) output

– Synchronous Rectifier Enable (SRE) input

• Analog I/O

– Temperature Output

– Output Current reporting

• Operating Temperature: -40°C to 85°C

UCD7242 Driver

• Fully Integrated Power Switches and Drivers for Dual Synchronous Buck Converters

• Wide Input Voltage Range of 4.75 V to 18 V (operation to 2.2 V with external VGG bias voltage)

• Up to 10-A Output Current Per Channel

• Operational to 2-MHz Switching Frequency

• High-Side Current Limit With Current Limit Flag

• Onboard Regulated 6-V Driver Supply From VIN

• Thermal Protection

• Temperature Sense Output – Voltage Proportional to Chip Temperature

• UVLO and OVLO Circuits Ensure Proper Drive Voltage

• Rated From –40°C to 125°C Junction Temperature

• RoHS Compliant

• Accurate On-Die Current Sensing (±5%)

4UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443–March 2011

Submit Documentation Feedback

www.ti.com

Electrical Performance Specifications

3 Electrical Performance Specifications

Table 1. UCD9224EVM-464 Electrical Performance Specifications

PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

Input Characteristics

Voltage range As configured, EVM input capable of 4.75 V to 14.0 V 10.8 12 13.2 V

No load input current 135 mA

Controller turn-on voltage Input voltage above which outputs become enabled 11.0 V

Controller turn-off voltage Input voltage below which outputs become disabled 10.5

Controller OVP protection Input voltage above which operation is latched off 13.8

Output Characteristics

Output voltage, VOUT1 IOUT1 = 10 A 2.450 2.5 2.550 V

Output load current, IOUT1 10

Output voltage regulation Line regulation: VIN = 10.8 V to 13.2 V, IOUT1 = 10 A <1.0%

Load regulation: IOUT1 = 10% to 100%, VIN = 12 V <1.0%

Output voltage ripple IOUT1 = 10 A 30 mVpp

Output over current 12.5 A

Output voltage, VOUT2 Output current = 10 A 1.750 1.8 1.850 V

Output load current, IOUT2 10 A

Output voltage regulation Line regulation: VIN = 10.8 V to 13.2 V, IOUT2 = 10 A <1.0%

Load regulation: IOUT2 = 10% to 100%, VIN = 12 V <1.0%

Output voltage ripple IOUT2 = 10 A 25 mVPP

Output over current 12.5 A

Systems Characteristics

Switching frequency 750 kHz

Efficiency 2.5 V at 10 A, 1.2 V at 0 A 87.5%

1.2 V at 10 A, 2.5 V at 0 A 78.2%

Operating temperature 25 ºC

SLUU443–March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL

Assembly / Schematic Layouts

www.ti.com

4 Assembly / Schematic Layouts

Figure 1. Top Assembly

6UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443–March 2011

Submit Documentation Feedback

www.ti.com

Assembly / Schematic Layouts

Figure 2. Schematic 1

SLUU443–March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL

Assembly / Schematic Layouts

www.ti.com

Figure 3. Schematic 2

8UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443–March 2011

Submit Documentation Feedback

www.ti.com

Test Setup

5 Test Setup

5.1 Test Equipment

Input Voltage Source: 12-V power supply with at least a 5-A sourcing capability.

Multimeters: Two 5 ½ digit digital multimeters.

Output Load: Two electronic loads capable of sinking 10 A from low voltage (<1 V) sources.

Oscilloscope: Minimum 4-channel, 100-MHz bandwidth with storage capability.

Fan: Not required but may be desirable if testing at full output power.

Recommended Wire Gauge:

Input Voltage: 20 AWG min.

Output Load: 16 AWG min.

5.1.1 Test configuration, Monitoring and Control Functionality

PC computer running Microsoft OS version:

• XP (32 – bit)

• Vista (32 – bit)

• Vista (64 – bit untested, should be compatible)

• 7 (32 or 64 – bit)

Texas Instruments’ USB Interface Adapter EVM - P/N USB-to-GPIO, User's Guide - SLLU093

Fusion Digital Power Designer Software Installer Executable File:

fusion_digital_power_designer_download_for_power_controllers_version_1_8_6.exe or newer

SLUU443–March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL

Test Setup

www.ti.com

5.2 Recommended Test Setup

Figure 4. UCD9224EVM-464 Recommended Test Set Up

10 UCD9224EVM-464 Digitally Controlled Dual-Rail POL SLUU443–March 2011

Submit Documentation Feedback

Tabla de contenidos

Otros manuales de Placa madre de Texas Instruments

Texas Instruments

Texas Instruments INA220EVM Manual de usuario

Texas Instruments

Texas Instruments LMR38020EVM Manual de usuario

Texas Instruments

Texas Instruments DS90UB954-Q1EVM Manual de usuario

Texas Instruments

Texas Instruments AMC7832EVM Manual de usuario

Texas Instruments

Texas Instruments DS90LV047-48AEVM Manual de usuario

Texas Instruments

Texas Instruments INA228EVM Manual de usuario

Texas Instruments

Texas Instruments TPS563211 Manual de usuario

Texas Instruments

Texas Instruments LM61460EVM Manual de usuario

Texas Instruments

Texas Instruments TRF370315 Manual de usuario

Texas Instruments

Texas Instruments TPS793 YEQEVM Series Manual de usuario

Texas Instruments

Texas Instruments LMG2100 Manual de usuario

Texas Instruments

Texas Instruments TPS6507 EVM Series Manual de usuario

Texas Instruments

Texas Instruments LP5860TEVM Manual de usuario

Texas Instruments

Texas Instruments TPS2553Q1EVM Manual de usuario

Texas Instruments

Texas Instruments TPS22924EVM-532 Manual de usuario

Texas Instruments

Texas Instruments RF430RL15 H Series Manual de usuario

Texas Instruments

Texas Instruments DRV8818EVM Manual de usuario

Texas Instruments

Texas Instruments TPSF12C3QEVM Manual de usuario

Texas Instruments

Texas Instruments LMK03328EVM Manual de usuario

Texas Instruments

Texas Instruments BQ25710EVM-017 Manual de usuario

Texas Instruments

Texas Instruments ADC08L060EVM Manual de usuario

Texas Instruments

Texas Instruments DS90UB926QSEVB Manual de usuario

Texas Instruments

Texas Instruments CC1101 Manual de usuario

Texas Instruments

Texas Instruments Stellaris LM3S6965 Manual de usuario

Manuales populares de Placa madre de otras marcas

DFI

DFI SD170 Manual de usuario

ASROCK

ASROCK ROMED8-2T Manual de usuario

Asus

Asus P2L97A Manual de usuario

Winmate

Winmate IC70 Manual de usuario

Asus

Asus MES-B Manual de usuario

Grantech

Grantech SYS8F377VGGA-3OMN Manual de usuario

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Manual de usuario

Gigabyte

Gigabyte GA-9IVDT Manual de usuario

Commell

Commell MS-C73 Manual de usuario

IBT Technologies

IBT Technologies MB860 Manual de usuario

Nvidia

Nvidia TEGRA DG-04927-001_V01 Manual de usuario

Biostar

Biostar M7VIT Bravo Instrucciones de funcionamiento e instalación

Intel

Intel D33217CK Manual de usuario

Asus

Asus F1A55-M LX PLUS R2.0 Manual de usuario

EPC

EPC EPC9147C Manual de usuario

Asus

Asus EX-B760M-V5 D4 Manual de usuario

EPOX

EPOX MU-8KHA0010 Manual de usuario

Ski-Doo

Ski-Doo Bombardier MPEM 219 700 090 Manual de usuario