ANALOG DEVICES LTP8800-4A 54V Input High Current DC DC Power User Guide
- May 15, 2024
- Analog Devices
Table of Contents
DEMO MANUAL
DC3190A-B
LTP8800-4A
54V Input, High Current DC/DC Power
µModule with PMBus Interface
DESCRIPTION
Demonstration circuit 3190A-B is a high current, high density, high efficiency open-frame μModule® regulator with 45V to 65V input range. The demo board has a LTP™8800-4A μModule regulator that provides the microprocessor a 0.75V voltage from 54V power distribution architecture with digital power system management. The maximum output current for the demo board is 200A. Refer to the LTP8800-4A data sheet for more detailed information.
The DC3190A-B powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows for reconfiguration of the part on-the-fly and stores the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.
GUI Download
Download the software from: LTpowerPlay
For more details and instructions of LTpowerPlay, refer to the LTpowerPlay GUI for LTP8800-4A Quick Start Guide.
Design files for this circuit board are available.
All registered trademarks and trademarks are the property of their respective owners.
BOARD PHOTO
Part marking is either ink mark or laser mark
PERFORMANCE SUMMARY
Specifications are at T A = 25°C, air cooling 400LFM
PARAMETER| CONDITIONS|
MIN
| TYP| MAX|
UNITS
---|---|---|---|---|---
Input Voltage Range VIN| |
45
| | 65|
V
Output Voltage| |
0.746
| 0.75| 0.754|
V
Default Switching Frequency| |
533
| 549| 565|
kHz
Maximum Output Current| Derating is Necessary for Certain VIN and Thermal Conditions, IOUT = 200A|
200
|
A
Converter Efficiency| VIN = 54V • fSW = 549kHz, VOUT = 0.75V, IOUT = 200A|
90.5
|
%
Demonstration circuit 3190A-B is easy to set up to evaluate the performance of the LTP8800-4A. See Figure 1 for the proper measurement equipment setup and use the following procedure:
- With the power off, connect the input power supply to VIN (45V to 65V) and GND.
- With the power off, connect the auxiliary power supply to BIAS (7V) and GND.
- With the power off, connect the auxiliary power supply to 3V3 (3.3V) and GND.
- With the power off, connect the load from VOUT to GND.
- Connect the DMMs to the input and outputs.
- Turn on the auxiliary power supply and the input power supply and check for the proper output voltage. VOUT should be 0.75 V ± 0.5%.
- Once the input and output voltages are properly established, adjust the load current within the operating range of 0A to 200A. Observe the output voltage regulation, output voltage ripples, load transient response, and other parameters.
- Connect the dongle and control the output voltages from the GUI. See the LTpowerPlay GUI for the LTP8800-4A Quick Start Guide for details.
NOTE: When measuring the output or input voltage ripple, do not use the long ground lead on the oscilloscope probe. See Figure 2 for the proper scope probe technique. Short, stiff leads need to be soldered to the (+) and (–) terminals of an output capacitor. The probe’s ground ring needs to touch the (–) lead and the probe tip needs to touch the (+) lead.
QUICK START PROCEDURE
Figure 1. Proper Measurement Equipment Setup
Figure 2. Measuring Output Voltage Ripple
CONNECT PC TO DC3190A-B
Use a PC to reconfigure the power management features of the LTP8800-4A such as: nominal VOUT, margin set points, OV/UV limits, temperature fault limits, sequencing parameters, the fault log, fault responses, GPIOs, and other functionalities. LTpowerPlay utilizes the DC1613A USB-to-SMBus controller to communicate with one of the demo systems or a customer board. The software also provides an automatic update feature to keep the software current with the latest set of device drivers and documentation. Download the LTpowerPlay software from: LTpowerPlay.
To access technical support documents for Analog Devices Digital Power Products, visit the LTpowerPlay Help menu. Online help is also available through the LTpowerPlay.
Figure 3. LTpowerPlay Main Interface
TYPICAL PERFORMANCE CHARACTERISTICS
dc3190a-b F04
Figure 4. Measured LTP8800-4A Efficiency at V OUT = 0.75V, fSW = 550kHz, Forced Air Cooled with 500LFM
(a) (b)
Figure 5. LTP8800-4A Thermal Performance at V IN = 54V, ILOAD = 200A, TA = 25°C, 500LFM Forced Airflow
(a) (b)
Figure 6. LTP8800-4A Thermal Performance at V IN = 54V, ILOAD = 200A, TA = 25°C, 900LFM Forced Airflow
dc3190a-b F07
Figure 7. LTP8800-4A Load Transient Responses with Load Steps 0A to 50A to 0A at dI/dt = 25A/µs
dc3190a-b F08
Figure 8. LTP8800-4A DC3190A-B Output Voltage Ripple Measured through J3 (54V Input, I OUT = 200A, 20MHz BW Limit)
PARTS LIST
ITEM
|
QTY
| REFERENCE| PART DESCRIPTION| MANUFACTURER/PART NUMBER
---|---|---|---|---
Required Circuit Components
1
|
18
| C5-C22| CAP., 10μF, X7S, 6.3V, 20%, 0603| TDK, C1608X7S0J106M080AC
2
|
2
| C45, C46, C76-C78| CAP., 2.2μF, X7R, 100V, 10%, 1206| SAMSUNG, CL31B225KCHSNNE
3
|
1
| C47| CAP., 22μF, ALUM, 100V, 20%, 8mm × 10.2mm, SMD, RADIAL, AEC-Q200, CE- BS| SUN ELECTRONIC INDUSTRIES CORP, 100CE22BS
4
|
1
| C48| CAP., 10μF, X7S, 16V, 10%, 0805| MURATA, GRM21BC71C106KE11L
5
|
1
| C49| CAP., 2.2μF, X7R, 16V, 10%, 0805| KEMET, C0805C225K4RACTU
6
|
4
| C52-C55| CAP., 100μF, X5R, 6.3V, 20%, 1206| TDK, C3216X5R0J107M160AB
7
|
4
| C58-C61| CAP., 100μF, X6S, 6.3V, 20%, 1210| SAMSUNG, CL32X107MQVNNNE
8
|
10
| C66-C75| CAP., 560μF, ALUM POLY, SP-CAP, 2V, 20%, 7343| PANASONIC, EEFGX0D561R
9
|
1
| CVS| CAP., 100pF, X7R, 16V, 10%, 0603| AVX, 0603YC101KAT2A
10
|
4
| J6-J9| EVAL BOARD STUD HARDWARE SET, #10-32| ANALOG DEVICES, 720-0010
11
|
1
| LB1| LABEL SPEC, DEMO BOARD SERIAL NUMBER| BRADY, THT-96-717-10
12
|
4
| M1-M4| XSTR., MOSFET, N-CH, 25V, 70A, LFPAK55, POWER-SO8| NEXPERIA, PSMN5R4-25YLDX
13
|
4
| R1-R4| RES., 24.9Ω, 1%, 1/10W, 0603, AEC-Q200| PANASONIC, ERJ3EKF24R9V
14
|
8
| R5-R8, R13-R16| RES., 200Ω, 1%, 1/10W, 0603| VISHAY, CRCW0603200RFKEA
15
|
4
| R9-R12| RES., 0.006Ω, 1%, 3W, 2512, LONG-SIDE TERM., METAL, SENSE, AEC-Q200| SUSUMU, KRL6432E-M-R006-F-T1
16
|
1
| R17| RES., 49.9Ω, 1%, 1/10W, 0603| PANASONIC, ERJ3EKF49R9V
17
|
4
| R18-R21| RES., 4.99k, 1%, 1/10W, 0603, AEC-Q200| PANASONIC, ERJ3EKF4991V
18
|
1
| R25| RES., 750Ω, 1%, 1/10W, 0603, AEC-Q200| STACKPOLE ELECTRONICS, INC., RMCF0603FT750R
19
|
1
| R26| RES., 10k, 1%, 1/10W, 0603, AEC-Q200| VISHAY, CRCW060310K0FKEA
20
|
1
| R27| RES., 10k, 1%, 1/16W, 0402, AEC-Q200| VISHAY, CRCW040210K0FKED
21
|
1
| R31| RES., 1k, 0.1%, 1/10W, 0603, THIN-FILM| YAGEO, RT0603BRD071KL
22|
1
| R32| RES., 2k, 0.1%, 1/10W, 0603, METAL FILM, AEC-Q200| PANASONIC, ERA3AEB202V
23
|
1
| R33| RES., 7.5Ω, 1%, 1/10W, 0603| YAGEO, RC0603FR-077R5L
24
|
1
| RSN| RES., 0Ω, 1/10W, 0603, AEC-Q200| PANASONIC, ERJ3GEY0R00V
25
|
1
| RSP| RES., 1Ω, 1%, 1/10W, 0603, AEC-Q200| NIC, NRC06F1R00TRF
26
|
1
| U1| IC, 165A DC/DC μModule REG., OPEN-FRAME 22mm × 24mm, SMD| ANALOG
DEVICES, LTP8800-4AIPV#PBF
Additional Demo Board Circuit Components
1
|
0
| C23-C34| CAP., 22μF, FEEDTHRU, 4V, 20%, 05035, SMD, 3-TERM., EMI FILTER, 2A| MURATA, NFMJMPC226R0G3D
2
|
0
| C62-C65| CAP., OPTION, 1206|
3
|
0
| CFF| CAP., OPTION, 0603|
4
|
0
| D1| DIODE, OPTION, SOD-323|
5
|
1
| PCB1| PCB, DC3190A-B| ADI APPROVED SUPPLIER, 600-DC3190A-B
6
|
0
| R22, R34, R37-R39, RFF| RES., OPTION, 0603|
Hardware: For Demo Board Only
1
|
12
| E3-E14| TEST POINT, TURRET, 0.064″ MTG. HOLE, PCB 0.062″ THK| MILL-MAX, 2308-2-00-80-00-00-07-0
2
|
2
| J1, J3| CONN., RF, BNC, RCPT, JACK, 5-PIN, ST, THT, 50Ω| AMPHENOL RF, 112404
3
|
1
| J2| CONN., HDR, MALE, 1×3, 2.54mm, VERT, ST, THT| SAMTEC, TSW-103-07-L-S
4
|
1
| J4| CONN., HDR, SHROUDED, MALE, 1×4, 2.54mm, VERT, ST, THT| AMPHENOL, 69167-104HLF
5
|
1
| J5| CONN., SOCKET, FEMALE, 2×12, 2mm, SMD, BOTTOM ENTRY| SAMTEC, CLT-112-02-F-D-BE-A-K-TR
6
|
2
| J10, J11| CONN., BANANA JACK, FEMALE, THT, NONINSULATED, SWAGE, 0.218″| KEYSTONE, 575-4
7
|
4
| MH1-MH4| STANDOFF, NYLON, SNAP-ON, 0.375″| KEYSTONE, 8832
8
|
1
| STNCL1| TOOL, STENCIL, 700-DC3190A| ADI APPROVED SUPPLIER, 830-DC3190A
SCHEMATIC DIAGRAM
FOR VIN: 45V ~ 65V
INPUT RANGE DEPENDS ON THE FIRMWARE + OUTPUT VOLTAGE
NOTES: UNLESS OTHERWISE SPECIFIED
- ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603
C66, C67, C68, C69, C70, C71, C72, C73, C74, C75:
DC3190A-A LTP8800-1A EEFGX0D561R (2.5V 560uF 3mOhm 2-terminal)
DC3190A-B LTP8800-4A EEFGX0D561R (2.5V 560uF 3mOhm 2-terminal)
DC3190A-C LTP8802 6TPE680MI (6.3V 680uF 18mOhm 2-terminal)
DC3190A-D LTP8803 EEFGX0D561R (2.5V 560uF 3mOhm 2-terminal)
- VERISON TABLE
| ASSY TYPE | U1 | R31 | R32 | C66 | C67 | C68 | C69 | C70 | C71 | C72 | C73 | C74 | C75 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DC3190A-A | LTP8800-1A | 1k | 2k | 560uF | 560uF | 560uF | 560uF | 560uF | 560uF | ||||
| 560uF | 560uF | 560uF | 560uF | ||||||||||
| DC3190A-B | LTP8800-4A | 1k | 2k | 560uF | 560uF | 560uF | 560uF | 560uF | 560uF | ||||
| 560uF | 560uF | 560uF | 560uF | ||||||||||
| DC3190A-C | LTP8802-1A | 2.87k | 511 | 680uF | 680uF | 680uF | 680uF | 680uF | 680uF | ||||
| 680uF | 680uF | 680uF | 680uF | ||||||||||
| DC3190A-D | LTP8803-1A | 1k | 1.3k | 560uF | 560uF | 560uF | 560uF | 560uF | 560uF | ||||
| 560uF | 560uF | 560uF | 560uF |
PCA ADDITIONAL PARTS
LB1 LABEL SPEC, DEMO BOARD SERIAL NUMBER
MH1 STANDOFF, NYLON, SNAP-ON,0.375″
MH2 STANDOFF, NYLON, SNAP-ON,0.375″
MH3 STANDOFF, NYLON, SNAP-ON,0.375″
MH4 STANDOFF, NYLON, SNAP-ON,0.375″
STNCL1 TOOL, STENCIL, 700-DC3190A REV05
PCB1 PCB, DC3190A REV05
CUSTOMER NOTICE
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER’S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT ANALOG DEVICES APPLICATIONS ENGINEERING FOR ASSISTANCE.
| APPROVALS| |
www.analog.com Phone: (408)432-1900
---|---|---
PCB DES.|
APP ENG.|
| | TITLE: SCHEMATIC
54V Input, High Current DC/DC Power uModule with PMBUS Interface
|
| | IC NO. LTP88xx
SKU NO. DC3190A| SCHEMATIC NO. AND REVISION:
710-DC3190A_REV05
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND SUPPLIED FOR USE WITH
ANALOG DEVICES PARTS.| |
| | SIZE: N/A| DATE: Tuesday, June 07, 2022|
SHEET 1 OF 1
REVISION HISTORY
REV
|
DATE
| DESCRIPTION|
PAGE NUMBER
---|---|---|---
Sp0|
7/22
| Initial Release.|
—
A|
11/23
| Open market release|
—
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