Texas Instruments UCD9224EVM-464 User Manual

Download

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

1 This 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 (V 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 (VINfrom 4.5 V to 14.0 V and V

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

OUT

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.

) and 1.2 V (V

OUT1

) without user intervention

OUT2

2.1 Typical Applications

• Industrial / Automated Test Systems

• Telecom / Networking Equipment

• Servers

• Storage Systems

• FPGA, DSP and Memory Systems

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

Submit Documentation Feedback

www.ti.com

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

Description

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

Submit Documentation Feedback

Description

PTD08D210W Module

• Dual 10-A Outputs

• Programmable Wide-Output Voltage

• 4.75-V to 14-V Input Voltage

• Efficiencies up to 96%

• Digital I/O

• Analog I/O

• 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%)

www.ti.com

– 0.7 V to 3.6 V

– PWM input – Fault Flag (FF) output – Synchronous Rectifier Enable (SRE) input

– Temperature Output – Output Current reporting

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

Submit Documentation Feedback

www.ti.com

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 I Output load current, IOUT1 10 Output voltage regulation Line regulation: VIN= 10.8 V to 13.2 V, I

Output voltage ripple I 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, I

Output voltage ripple I 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%

Operating temperature 25 ºC

= 10 A 2.450 2.5 2.550 V

OUT1

Load regulation: I

= 10 A 30 mVpp

OUT1

Load regulation: I

= 10 A 25 mV

OUT2

OUT1

OUT2

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

Electrical Performance Specifications

= 10 A <1.0%

OUT1

= 10% to 100%, VIN= 12 V <1.0%

= 10 A <1.0%

OUT2

= 10% to 100%, VIN= 12 V <1.0%

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

Submit Documentation Feedback

Assembly / Schematic Layouts

4 Assembly / Schematic Layouts

www.ti.com

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

Figure 1. Top Assembly

Submit Documentation Feedback

www.ti.com

Assembly / Schematic Layouts

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

Submit Documentation Feedback

Figure 2. Schematic 1

Assembly / Schematic Layouts

www.ti.com

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

Figure 3. Schematic 2

Submit Documentation Feedback

www.ti.com

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

Test Setup

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

Submit Documentation Feedback

Test Setup

5.2 Recommended Test Setup

www.ti.com

Figure 4. UCD9224EVM-464 Recommended Test Set Up

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

Submit Documentation Feedback

www.ti.com

5.3 List of Connectors

CONNECTORS PINS NAME DESCRIPTION

J1 1 VIN Input voltage

J2 1 thru 4 GND USB interface adapter - unconnected

J3 1 GPIO-1 General purpose input/output – UCD9224 pin 22 (SEQ-2)

J4 2-Jan ADDR-1 Jumper location to modify ADDR-1 setting

J5 1 +V

J6 1 +V

J7 (optional) 1 REG 3.3 V from onboard regulator U1

J8 1 CNTRL Manual control line access

J9 (optional) 1 GND Input voltage return

(1)

J7 is not populated by default and a shunt trace connects Pins 1 and 2 on the EVM.

(2)

J9 (DC power jack) replaces J1 to allow use of a standard 5.5mm/2.5mm power adapter plug.

Table 2. Connector definition

2 GND Input voltage return

5 USB interface adapter – 3.3V 100ma supply (optional) 6 USB interface adapter – ground 7 PMBus_CNTRL USB interface adapter – control line 8 PMBus_ALERT USB interface adapter – alert line 9 PMBus_CLK USB interface adapter – clock line

10 PMBus_DATA USB interface adapter – data line

2 PGOOD Power good – all rails (UCD9224 Pin 26) 3 AGND Analog ground reference point for external signals 4 VTRACK Input reference for external voltage tracking

4-Mar ADDR-0 Jumper location to modify ADDR-0 setting

OUT2

2 -V

OUT2

OUT1

2 3.3 V 3.3-V supply for UCD9224 controller 3 EXT 3.3 V from J2-5 (PMBus)

2 AGND Ground

2 Unconnected

3/3 A VIN Input voltage

Output voltage 2 Output voltage 2 return Output voltage 1 Output voltage 1 return

(1)

(2)

Test Setup

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

Submit Documentation Feedback

Test Setup

5.4 List of Test Points

TEST POINTS NAME DESCRIPTION

TMUX0 TMUX0 Output low bit to drive multiplexor for temperature and VIN/I TMUX1 TMUX1 Output high bit to drive multiplexor for temperature

VIN/IIN Vin/Iin Input supply sense (after multiplexor) – alternates between VIN/I

VIN Vin Input voltage referenced to PGND +Vout1 +V +Vout2 +V

PGND Power Ground Power ground reference

VINsense Vinsense VINsense (prior to multiplexor)

IINsense Iinsense IINsense (prior to multiplexor)

PWM_1 DPWM-1A Digital pulse width modulator output 1A PWM_2 DPWM-2A Digital pulse width modulator output 2A

SRE_1 SRE-1A Synchronous rectifier enable output 1A SRE_2 SRE-2A Synchronous rectifier enable output 2A

FLT_1 FLT-1A External fault input 1A FLT_2 FLT-2A External fault input 2A

CS_1 CS-1A Power stage 1A current sense input and input to analog comparator 1 CS_2 CS-2A Power stage 2A current sense input and input to analog comparator 2

TP1 AGND Analog ground reference TP2 AGND Analog ground reference TP3 nRESET Reset pin – active low TP4 V33FB Base drive control for 3.3-V linear regulator transistor (no connect if using an

TP5 SEQ-1 Sequencing input/output (GPIO) TP6 CS-1B Power stage 1B current sense input TP7 nTRST JTAG test reset (pull-down to ground using 10-kΩ resistor) TP8 DPWM-1B

TP9 TMS JTAG test mode select (pull-up to 3.3 V with 10-kΩ resister) TP10 DPWM-3A TP11 TDI/Sync_In JTAG test data in (multiplexed with Sync_In for synchronizing switching

TP12 TDO/Sync_Out JTAG test data out (multiplexed with Sync_Out for synchronizing switching

TP13 TCK JTAG test clock TP14 SRE-1B Synchronous rectifier enable output 1B TP15 SRE-3A Synchronous rectifier enable output 3A TP16 FLT-1B External fault input 1B TP17 FLT-3A External fault input 3A TP18 CS-3A Power stage 3A current sense input and input to analog comparator 4

Table 3. Test Point Functions

OUT

OUT2

Output voltage for rail #1 referenced to PGND Output voltage for rail #2 referenced to PGND

external 3.3-V LDO regulator)

frequency across multiple devices) – Pull-up to 3.3 V with 10-kΩ resistor

frequency across multiple devices)

www.ti.com

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

Submit Documentation Feedback

www.ti.com

6 Software Setup

Accessing the UCD9224EVM-464’s configuration, control and monitoring capabilities with the Fusion Digital Power Designer software tool requires a one-time software setup per host system.

6.1 Fusion Digital Power Designer Software (Fusion GUI) Installation

Place the Fusion Digital Power Designer Software (Fusion GUI) Installer zip file (UCD9224EVM-464 Software Files) in a known location on the host computer to be used for EVM configuration/test. Unzip the installation files for the Fusion Digital Power Designer Software by double clicking the zip file.

Double click the unzipped TI-Fusion-Digital-Power-Designer-1.8.6.exe file and proceed through the installation by accepting the installer prompts and the license agreement. Use the Fusion GUI installer’s suggested default installation locations to complete the install.

When the Fusion GUI installation reaches the finished window, uncheck the launch application check box and close the window.

7 Test Procedure

The UCD9224EVM-464 is provided with a default configuration that will allow the user to immediately power up the EVM and begin testing as either a stand-alone power solution or as a “networked” power system when accessing the PMBus™ interface.

7.1 Test Setup

1. Set the external input power supply’s output voltage to 12 V +/-0.5 V and current limit the supply at 5.0 A. Ensure the output voltage is disabled.

2. Attach supply connection leads (AWG 20 minimum) between the external power supply and the input voltage connector (J1) on the EVM following the polarity settings shown in the Recommended Test Setup (Figure 4).

3. Set both Electronic Load A and B to constant current loading and adjust their loading currents to 10.0 A +/- 0.1 A each.

4. Attach leads (AWG 16 minimum) between the Electronic Load A inputs and the target EVM’s V connector following the polarity settings shown in the Recommended Test Setup (Figure 4).

5. Attach leads (AWG 16 minimum) between the Electronic Load B inputs and the target EVM’s V connector following the polarity settings shown in the Recommended Test Setup (Figure 4).

6. Ensure that both electronic loads have their loads enabled.

Software Setup

(J6)

OUT1

(J5)

OUT2

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

Submit Documentation Feedback

Test Procedure

7.2 Output Voltage

1. Attach the DMMs to both output voltage test points, +V

2. Enable the external input voltage supply.

3. Measure V

OUT1

and V

Output Voltages.

OUT2

7.3 VINUVLO Settings and OVP Setpoint

1. Remove the DMM from V

2. Slowly reduce the external input voltage supply until V

3. Slowly increase the external input voltage supply until V

4. Slowly increase the external input voltage supply until V

5. Return the input supply to 12.0 V, confirm operation is still disabled.

6. Disable the external input voltage source.

and connect to the input voltage test points, VINand PGND.

OUT2

7.4 Turn-On Timing / Power Good

Testing the currently configured settings for Turn-On Timing and Power Good

1. Attach Channel 1 of the oscilloscope between V V

and PGND test points.

OUT2

2. Set the oscilloscope to 1.0 V/div. vertical scale on both channels and set the time scale to 1 ms/div. Set the Trigger source to Channel 1 with a single-shot acquisition.

3. Remove DMM from VINand connect between the PGOOD (J2-2) and AGND (J2-3).

4. Enable the external input power supply.

5. Review captured waveform and active high PGOOD signal.

to PGND and +V

OUT1

is disabled then confirm VINvoltage level.

OUT1

is enabled and confirm VINvoltage level.

OUT1

is disabled and confirm VINvoltage level.

OUT1

and PGND test points and Channel 2 between

OUT1

OUT2

to PGND.

www.ti.com

Figure 5. V

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

OUT1

(Yellow), V

(Blue) and PGOOD (Red) Start-Up Timing

OUT2

Submit Documentation Feedback

www.ti.com

7.5 Fusion GUI Monitoring and Control Example

1. Attach the USB Interface Adapter to the computer hosting the Fusion GUI software with the supplied USB A-to-MiniB cable then to the UCD9224 with the supplied 10-pin ribbon cable. The USB Interface Adapter will be recognized as an HID device by the host system with no additional drivers needed. The green LED will illuminate when the adapter has been connected with the system.

2. With the UCD9224EVM-464 still powered, launch the Fusion GUI by double clicking the desktop icon or, alternately, navigating to the application icon in the program folder through the Windows Start Menu (default location: Start\All Programs\Texas Instruments Fusion Digital Power Designer\Fusion Digital Power Designer).

NOTE: The Offline Mode version of the GUI is for project file development only and will not be able

to access an operating power system.

3. The GUI will scan the bus for available devices and after this discovery process is successful the GUI will open to its main Configuration Page (Figure 6). Navigation through the GUI is controlled with the Page and Tab selections which are highlighted in red.

Test Procedure

Figure 6. Default Fusion Digital Power Designer GUI Start Page

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

Submit Documentation Feedback

Test Procedure

4. Select the Monitor Page and the window in Figure 7 will be displayed. The operating status of the

output voltage and other parameters for Rail #1 can be reviewed from this window, by default Rail #1 is always presented at the Fusion GUI startup. Rail #2 can be monitored by using the dropdown selection in the upper right corner of the monitoring window and selecting UCD9224 @ Address xxx Rail #2. The red horizontal lines that are present in most of the plots indicate the fault limits for this parameter and the yellow lines are the warning levels.

In the V slightly when referenced to the earlier section of the plot. This reflects the application of margining to the output voltage with the Margin High setting still visible at the bottom of the column just to the left of the plots.

Rail #1 plot shown in Figure 7, the voltage can be seen to shift down slightly and then up

OUT

www.ti.com

Figure 7. Fusion Digital Power Designer Software – Monitor Page – Rail #1

NOTE: A Low VINalert may be present when monitoring is first accessed but it does not affect the

operation of the system. This is a typical alert condition during initial voltage application, as VINramps above the voltage necessary to power the UCD9224 but has not reached the Turn Controller On threshold before the first VINsample is taken by the controller. This contrasts to a VINUnder Voltage Warning which occurs when the unit is operating and the input voltage falls below the VINUV Warning level.

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

Submit Documentation Feedback

www.ti.com

5. There are configuration value boxes in many of the plot windows, ex. OT Fault and OT Warn boxes

Test Procedure

exist within the Temp Rail #1 plot. These are the numerical values for the fault and warning limits and reflect the same values found on the Configuration page of the GUI.

Change the OT Warn level from the pre-configured 85°C to 20°C and click the Write button, observe in the Status Registers/Lines section of the Monitor page that the Temp Status has been updated from OK to OT Warn and the SMBALERT# changes from Not Asserted to Asserted.

PMBus™ digital controllers are considered slave devices on the SMBus and as such they cannot initiate communication with the system controller directly, but instead need to ask for assistance by activating the SMBus Alert line, SMBALERT#. If the SMB Alert line is pulled low then the system controller, the Fusion GUI for this example, will send an inquiry across the PMBus™ to determine which controller requires assistance and why. Once the system controller has determined the issue (and possibly initiated a response), then the faults can be cleared. Return the OT Warn level to 85°C and click the Clear Faults button.

Now change the OT Fault level to 20°C and click the Write button, observe that several items changed state within the Status Registers/Lines section. The Temp Status and Logged Faults both indicate OT Fault, Misc Status indicates POWER_GOOD#, and the SMBALERT# is Asserted again. POWER_GOOD# is an indication that one or both rails have violated either the Power_Good_ON or _OFF thresholds in the configuration. In this case, it is the Power_Good_Off threshold because the configured response for an OT Fault on Rail#1 had been set to Shut Down Immediately.

Warnings and faults are stored in RAM and will be cleared when power to the controller is cycled or the Clear Faults button is exercised. Logged faults are stored in Flash and they are persistent after a power cycle. Logged faults can be cleared with the Clear Logged Faults button.

Power cycle the UCD9224 EVM and the configuration will be returned to the original state before the above changes were implemented.

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

Submit Documentation Feedback

Test Procedure

7.6 Restoring the UCD9224 EVM’s Original Configuration

The file HPA464_EVM_Default_Configuration.XML can be found on the TI website and is provided to allow the user to return the EVM to its originally configured state. Simply open the Fusion GUI while the powered EVM is connected to the computer with the USB Interface Adapter. At the default Configuration Screen select File → Import Project from the dropdown menu at the top of the window and the Select Project File window will open. Click the Select File button and navigate to the location of and highlight the HPA464_EVM_Default_Configuration.xml file and click the Open button. Click the Next > button and the Select Project Items to Import window will open, set the check boxes as shown in Figure 8 and click the Next > button. In the Review Parameters to Import window, click the Select All button and then click the Write Checked button. The Fusion GUI will download the default configuration settings (it may generate two warnings about NACK of SYNC_OFFSET command, this is OK, the controller NACKs this command if the value is already zero). When the download is complete, click the Next > button then the OK button to complete the project file import. The Fusion GUI will perform a device reset after which the UCD9224EVM-464 should be restored to its original configuration settings.

www.ti.com

Figure 8. Configuration File Import Settings

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

Submit Documentation Feedback

0 2 6 12

LOAD

– Load Current - A

100

4 10

 – Efficiency - %

EFFICIENCY

LOAD CURRENT

10.0 V 12.0 V 13.2 V

0 2 6 12

LOAD

– Load Current - A

4 10

p – Efficiency - %

EFFICIENCY

LOAD CURRENT

10.8 V 12.0 V 13.2 V

www.ti.com

Performance Data and Typical Characteristic Curves

8 Performance Data and Typical Characteristic Curves

Figure 9 through Figure 12 present typical performance curves for UCD9224EVM-464.

8.1 Efficiency

8.2 Output Ripple

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

Submit Documentation Feedback

Figure 9. 2.5-V Efficiency (1.2-V no load)

Figure 10. 1.2-V Efficiency (2.5-V no load)

Performance Data and Typical Characteristic Curves

www.ti.com

Figure 11. 2.5-V Output Ripple

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

Figure 12. 1.2-V Output Ripple

Submit Documentation Feedback

www.ti.com

9 EVM Assembly Drawing and PCB layout

The following figures (Figure 13 through Figure 17) show the design of the UCD9224EVM-464 printed circuit board.

EVM Assembly Drawing and PCB layout

Figure 13. Top Layer Assembly Drawing (top view)

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

Submit Documentation Feedback

EVM Assembly Drawing and PCB layout

www.ti.com

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

Figure 14. Top Copper (top view)

Submit Documentation Feedback

www.ti.com

EVM Assembly Drawing and PCB layout

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

Submit Documentation Feedback

Figure 15. Internal Layer 1 (top view)

EVM Assembly Drawing and PCB layout

www.ti.com

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

Figure 16. Internal Layer 2 (top view)

Submit Documentation Feedback

www.ti.com

EVM Assembly Drawing and PCB layout

Figure 17. Bottom Copper (bottom view)

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

Submit Documentation Feedback

List of Materials

10 List of Materials

The EVM components list according to the schematic shown in Figure 2 and Figure 3.

QTY DESCRIPTION MANUFACTURER PART NUMBER

REFERE

NCE

3 C1, C2, Capacitor, ceramic, 4.7 µF, 25 V, X5R, 0805 Murata Electronics (VA) GRM21BR61E475KA1

C3 2L

4 C10, C11, Capacitor, ceramic, 10000 PF, 50V, X7R, 0603 Kemet (VA) C0603C103K5RACTU

C13, C14 1 C15 Capacitor, elect, 330 µF, 25 V, FK, SMD Panasonic - ECG (VA) EEE-FK1E331P 1 C16 Capacitor, ceramic, 22 µF, 25 V, X5R, 1210 Taiyo YUDEN (VA) TMK325BJ226MM-T 2 C17, C20 Capacitor, ceramic, 47 µF, 16 V, X5R, 1210 Taiyo YUDEN (VA) EMK325BJ476MM-T 2 C18, C19 Capacitor, elect, 330 µF, 6.3 V, FK, SMD Panasonic - ECG (VA) EEE-FK0J331XP 6 C4, C5, Capacitor, ceramic, 0.100 µF, 50V, X7R, 0603 Kemet (VA) C0603C104K5RACTU

C6, C7,

C12, C21 2 C8, C9 Capacitor, ceramic, 820 PF, 50 V, X7R, 0603 Kemet (VA) C0603C821K5RACTU 3 J1, J5, J6 Terminal block, 5.08 MM, vertical, 2 pos On Shore Technology Inc ED120/2DS 1 J2 Conn header, low-pro, 10 pos, gold Assmann Electronics Inc AWHW10G-0202-T-R 2 J3, J4 Conn, header 0.100, single, STR, 4 pos SULLINS CONNECTOR PEC04SAAN

1 J8 Conn, header, 0.100, single, STR, 2 pos Sullins Connector Solutions PEC02SAAN

1 R1 Resistor, 0 .001 Ω, 1/2 W, 1%, 2010, SMD Vishay/Dale (VA) WSL20101L000FEA 4 R14, R15, Resistor, 100 kΩ, OHM 1/10 W, 1%, 0603, SMD Vishay/Dale (VA) CRCW0603100KFKEA

R16, R19 2 R17, R18 Resistor, 20.0 kΩ, 1/10 W, 1%, 0603, SMD Vishay/Dale (VA) CRCW060320K0FKEA 8 R2, R3, Resistor, 10.0 kΩ, 1/10 W, 1%, 0603, SMD Vishay/Dale (VA) CRCW060310K0FKEA

R5, R7,

R8, R11,

R12, R20 2 R21, R23 Resistor, 76.8 kΩ, 1/10 W, 1%, 0603, SMD Panasonic - ECG (VA) ERJ-3EKF7682V 2 R22, R24 Resistor, 133 kΩ, 1/10 W, 1%, 0603, SMD Vishay/Dale (VA) CRCW0603133KFKEA 1 R29 Resistor, 1.00 kΩ, 1/10 W, 1%, 0603, SMD Panasonic - ECG (VA) ERJ-3EKF1001V 3 R4, R9, Resistor, 1.50 kΩ, 1/10 W, 1%, 0603, SMD Panasonic - ECG (VA) ERJ-3EKF1501V

R13 2 R6, R10 Resistor, 1.21 kΩ, 1/10 W, 1%, 0603, SMD Vishay/Dale (VA) CRCW06031K21FKEA 2 TP1, TP2 PC test point compact SMT Keystone Electronics (VA) 5016 3 TP27, Test point, PC mini, 0.040", RED Keystone Electronics 5000

TP29,

TP30 3 TP28, Test point, PC mini, 0.040", BLACK Keystone Electronics 5001

TP31,

TP32 1 U1 3.3-V hi-in, LDO reg, 8-SON Texas Instruments (VA) TPS715A33DRBT 1 U2 Current monitor, 1%, SC70-6 Texas Instruments (VA) INA210AIDCKT 1 U3 DGTL PWM system, CTRLR, 48 V, QFN Texas Instruments (VA) UCD9224RGZT 1 U4 Switch SPDT SC70-6 Texas Instruments (VA) SN74LVC1G3157DCK

1 U5 Module DGTL Powertrain, 10 A, 22 dip Texas Instruments PTD08D210WAC

www.ti.com

Table 4. UCD9224EVM-464 List of Materials

SOLUTIONS (VA)

(VA)

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

Submit Documentation Feedback

Evaluation Board/Kit Important Notice

Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION

PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives.

Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of

patents or services described herein.

Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the product. This notice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/or safety programs, please contact the TI application engineer or visit www.ti.com/esh.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or combination in which such TI products or services might be or are used.

FCC Warning

This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and

can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference.

EVM Warnings and Restrictions

It is important to operate this EVM within the input voltage range of 4.75 V to 12 V and the output voltage range of 0.7 V to 3.6 V . Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are

questions concerning the input range, please contact a TI field representative prior to connecting the input power. Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the

EVM. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.

During normal operation, some circuit components may have case temperatures greater than 60° C. The EVM is designed to operate properly with certain components above 60° C as long as the input and output ranges are maintained. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.

TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications.

TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.

TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements.

Following are URLs where you can obtain information on other Texas Instruments products and application solutions:

Products Applications

Audio www.ti.com/audio Communications and Telecom www.ti.com/communications Amplifiers amplifier.ti.com Computers and Peripherals www.ti.com/computers Data Converters dataconverter.ti.com Consumer Electronics www.ti.com/consumer-apps DLP® Products www.dlp.com Energy and Lighting www.ti.com/energy DSP dsp.ti.com Industrial www.ti.com/industrial Clocks and Timers www.ti.com/clocks Medical www.ti.com/medical Interface interface.ti.com Security www.ti.com/security Logic logic.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Power Mgmt power.ti.com Transportation and www.ti.com/automotive

Microcontrollers microcontroller.ti.com Video and Imaging www.ti.com/video RFID www.ti-rfid.com Wireless www.ti.com/wireless-apps RF/IF and ZigBee® Solutions www.ti.com/lprf

TI E2E Community Home Page e2e.ti.com

Automotive

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Texas Instruments: UCD9224EVM-464

Texas Instruments UCD9224EVM-464 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual