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18

DEMO MANUAL DC2881A-A

Rev. 0

 

ANALOG DEVICES, INC. 2022

07/22

www.analog.com

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.

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Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and 

agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted 

is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third 

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Содержание DC2881A-A

Страница 1: ...er to the LTC3884 1 and LTC7050 data sheet for more detailed information DC2881A A powers up to default settings and produces power based on configuration resistors or with the All registered trademar...

Страница 2: ...t the loads within the operating range and observe the output voltage regulation ripple voltage and other parameters 7 Connect the dongle and control the output voltages from the GUI See LTpowerPlay Q...

Страница 3: ...rate of load current will follow the slew rate of EXT PULSE lin early Refer to the table in the schematic file to optimally route the voltage sense points during load transient test It is highly recom...

Страница 4: ...ors R196 and R197 removed To measure the efficiency of LTC7050 refer to the setup in Figure 6 In this setup the controller SPS and IREF biases are provided externally so as to not load the 12V input A...

Страница 5: ...5 DEMO MANUAL DC2881A A Rev 0 Figure 5 Measuring Setup for DC2881 Efficiency OUTPUT AND ONBOARD E LOAD CONFIGURATION IIN POWER SUPPLY IOUT1 LOAD1 VOUT1 VIN1 dc2881a a F05...

Страница 6: ...UAL DC2881A A Rev 0 Figure 6 Measuring Setup for LTC7050 Efficiency OUTPUT AND ONBOARD E LOAD CONFIGURATION VOUT1 VIN1 IIN POWER SUPPLY IOUT1 LOAD1 POWER SUPPLY POWER SUPPLY POWER SUPPLY VDRV IDRV dc2...

Страница 7: ...0 VOUT1 2 Efficiency vs Load at VIN 12V fS 500kHz 1 Phase VOUT 1V VOUT 1 8V LOAD CURRENT A 0 3 6 9 12 15 18 21 24 27 30 70 75 80 85 90 95 100 EFFICIENCY dc2881a a F07 L PA2607 211NL 215nH 0 29m L PA26...

Страница 8: ...1 30A Figure 12 VOUT2 Voltage Ripple 17 4mV at VIN 12V VOUT2 1V IOUT2 30A Figure 13 Thermal at VIN 12V VOUT1 1V IOUT1 30A VOUT2 1V IOUT2 30A TA 22 C No Airflow 2 s DIV VOUT1 20MHz BW 20mV DIV dc2881a...

Страница 9: ...ed at a later time LTpowerPlay provides unprecedented diagnostic and debug features It becomes a valuable diagnostic tool during board bring up to program or tweak the power management scheme in a sys...

Страница 10: ...nds in the lower left hand corner confirming that LTC3884 1 is communicating c In the Toolbar click the R RAM to PC icon to read the RAM from the LTC3884 1 This reads the configuration from the RAM of...

Страница 11: ...01 F X7R 25V 10 0603 AEC Q200 AVX 06033C103K4Z2A 9 1 C15 CAP 1 F X5R 16V 10 0603 AVX 0603YD105KAT2A 10 2 C31 C224 CAP 10 F X7R 25V 10 1210 AVX 12103C106KAT2A 11 1 C34 C35 CAP 4 7 F X5R 16V 20 1210 AVX...

Страница 12: ...1 4W 1206 AEC Q200 VISHAY CRCW1206402RFKEA 35 2 R85 R200 RES 27 4 1 1W 2512 AEC Q200 PANASONIC ERJ1TNF27R4U 36 1 R160 RES 2 1 1 10W 0603 VISHAY CRCW06032R00FNEA 37 2 R161 R170 RES 43 2k 1 1 10W 0603 A...

Страница 13: ...0 14 1 D8 DIODE SCHOTTKY 20V 0 5A SOD 882 LEADLESS NEXPERIA PMEG2005AEL 315 15 0 D9 DIODE OPTION SCHOTTKY POWERDI 123 16 0 R14 R20 R22 R23 R25 R26 R27 R28 R31 R32 R35 R36 R37 R38 R39 R40 R42 R43 R45 R...

Страница 14: ...35 E36 E37 E38 E39 E40 E41 TEST POINT TURRET 0 094 MTG HOLE PCB 0 062 THK MILL MAX 2501 2 00 80 00 00 07 0 2 6 J1 J2 J3 J4 J5 J6 EVAL BOARD STUD HARDWARE SET 10 32 ANALOG DEVICES INC 720 0010 3 3 J7 J...

Страница 15: ...TITLE SCHEMATIC APPROVALS PCB DES APP ENG SIZE SCHEMATIC NO AND REVISION CUSTOMER NOTICE THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND SUPPLIED FOR USE WITH ANALOG DEVICES PARTS SKU NO IC NO ANALO...

Страница 16: ...ITH PSM DC2881A A B C 710 DC2881A A B C _REV03 N A Monday December 20 2021 Variant Name DATE SHEET OF TITLE SCHEMATIC APPROVALS PCB DES APP ENG SIZE SCHEMATIC NO AND REVISION CUSTOMER NOTICE THIS CIRC...

Страница 17: ...E DRIVE www analog com ANALOG DEVICES AHEAD OF WHAT S POSSIBLE TM SANTA CLARA CA 95054 3 3 LT Y T LTC7050X LTC3884RHE 1 HIGH EFFICIENCY SYNCHRONOUS BUCK CONVERTER WITH PSM DC2881A A B C 710 DC2881A A...

Страница 18: ...disclose or transfer any portion of the Evaluation Board to any other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promp...

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