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DESCRIPTION
Demonstration circuit 2672A-B is a complete non-isolated
48V input, dual-phase single output, high efficiency, high
density µModule regulator with 30V to 58V input range.
The output can supply 50A maximum load current. The
demo board has a LTM4664 µModule regulator, which is
a dual 25A or single 50A step-down regulator with digital
power system management. Please see LTM4664 data-
sheet for more detailed information.
DC2672A-B powers up to default settings and produces
power based on configuration resistors without the need
for any serial bus communication. This allows easy evalu-
ation of the DC/DC converter. To fully explore the extensive
power system management features of the part, download
BOARD PHOTO
48V
, Single 50A µModule Regulator
IN
With Digital Power System Management
Figure 1. Dual Phase Single-output LTM4664/DC2672A-B Demo Circuit
DEMO MANUAL DC2672A-B
the GUI software LTpowerPlay™ onto your PC and use
2
ADI's I
C/SMBus/PMBus dongle DC1613A to connect to
the board. LTpowerPlay allows the user to reconfigure the
part on the fly and store the configuration in EEPROM, view
telemetry of voltage, current, temperature and fault status.
GUI Download
The software can be downloaded here.
For more details and instructions of LTpowerPlay, please
refer to LTpowerPlay GUI for LTM4664 Quick Start Guide.
Design files for this circuit board are
All registered trademarks and trademarks are the property of their respective owners.
LTM4664
available.
Rev. 0
1
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Related Manuals for Linear Analog Devices LTM4664
Summary of Contents for Linear Analog Devices LTM4664
- Page 1 DEMO MANUAL DC2672A-B LTM4664 , Single 50A µModule Regulator With Digital Power System Management DESCRIPTION Demonstration circuit 2672A-B is a complete non-isolated the GUI software LTpowerPlay™ onto your PC and use 48V input, dual-phase single output, high efficiency, high ADI’s I C/SMBus/PMBus dongle DC1613A to connect to density µModule regulator with 30V to 58V input range.
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Page 2: Quick Start Procedure
DEMO MANUAL DC2672A-B PERFORMANCE SUMMARY Specifications are at T = 25°C PARAMETER CONDITIONS VALUE Input Voltage Range 30V to 58V Output Voltage, V = 30-58V, I = 0A to 50A 0.5 to 1.5V, Default: 1.0V OUT0 OUT0 Maximum Output Current, I = 30-58V, V = 0.5V to 1.5V OUT0... - Page 3 DEMO MANUAL DC2672A-B QUICK START PROCEDURE Figure 2. Proper Measurement Equipment Setup Rev. 0...
- Page 4 DEMO MANUAL DC2672A-B QUICK START PROCEDURE Figure 3. Measuring Output Voltage Ripple Connecting a PC to DC2672A-B margin set points, OV/UV limits, temperature fault limits, sequencing parameters, the fault log, fault responses, You can use a PC to reconfigure the power manage- GPIOs and other functionalities.
- Page 5 DEMO MANUAL DC2672A-B QUICK START PROCEDURE (20MHz BW) OUT0 20mV/DIV 0A-12.5A LOAD STEP 100 s/DIV Figure 6. V Load Transient Response at V = 48V, V = 1.0V OUT0 OUT0 (20MHz BW) OUT0 10mV/DIV 100 s/DIV Figure 7. V Voltage Ripple at V = 48V, V = 1.0V, I = 50A...
- Page 6 DEMO MANUAL DC2672A-B QUICK START PROCEDURE LTpowerPlay Software GUI to program or tweak the power management scheme in a system, or to diagnose power issues when bringing up LTpowerPlay is a powerful Windows based development rails. LTpowerPlay utilizes the DC1613A USB-to-SMBus environment that supports Analog Devices power sys- controller to communicate with one of many potential tar- tem management ICs and μModules, including LTM4675,...
- Page 7 DEMO MANUAL DC2672A-B QUICK START PROCEDURE QUICK START PROCEDURE LTpowerPlay Quick Start Procedure d. If you want to change the output voltage to a differ- ent value, like 1.5V. In the Config tab, type in 1.5 in the The following procedure describes how to use LTpow- VOUT_COMMAND box, like this: erPlay to monitor and change the settings of LTM4664.
- Page 8 DEMO MANUAL DC2672A-B PARTS LIST ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART, NUMBER Required Circuit Components COUT1, COUT2, COUT9, COUT12, CAP , 1210 100uF 20% 6.3V X5R AVX, 12106D107MAT2A COUT3, COUT4, COUT5, COUT6, CAP , 1210 330uF 20% 4V X5R TAIYO YUDEN, AMK325ABJ337MM-P COUT10, COUT13, COUT14, COUT15 C1, C19...
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Page 9: Parts List
DEMO MANUAL DC2672A-B PARTS LIST ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART, NUMBER Additional Demo Board Circuit Components COUT7, COUT8, COUT11, CAP , 7343 OPTION OPTION COUT16 CAP , 0603 OPTION OPTION DIODE, OPTION OPTION D3, D4 DIODE, SCHOTTKY 30V, 100mA OPTION CENTRAL SEMI, CMDSH-3-TR, OPTION R2, R3, R5, R6, R11, R12, R15, R16, RES, 0603 OPTION OPTION... - Page 10 DEMO MANUAL DC2672A-B PARTS LIST ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART, NUMBER COUT17, COUT18, COUT22, CAP , 7343 470uF 20% 2.5V SPCAP PANASONIC, EEF-GX0E471L COUT26 IC, 24LC05-I/ST MICROCHIP , 24LC025-I/ST R101, R102 RES, 0603 10 OHMS 5% 1/10W VISHAY, CRCW060310R0JNEA R103, R104 RES, 0603 4.99K OHMS 1% 0.1W VISHAY, CRCW06034K99FKEA R110, R111, R115...
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Page 11: Schematic Diagram
DEMO MANUAL DC2672A-B SCHEMATIC DIAGRAM Rev. 0... - Page 12 DEMO MANUAL DC2672A-B SCHEMATIC DIAGRAM Rev. 0...
- Page 13 DEMO MANUAL DC2672A-B SCHEMATIC DIAGRAM Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice.
- Page 14 DEMO MANUAL DC2672A-B ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern.