DC3107A AD | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 11

Technical content

modifying the DC3107A evaluation board.

  • Current Mode Control, Fast Transient Response
  • External Frequency Synchronization
  • Differential Remote Sensing DC3107A Evaluation Board FILE DESCRIPTION DC3107A Design files Ordering Information appears at end of this user guide. Evaluation Board Photo

Figure 1. DC3107A Evaluation Board (Part Marking Is either Ink Mark or Laser Mark)

Evaluation Board User Guide DC3107A analog.com Rev. 0 2 of 11 Performance Summary Specifications are at TA = 25°C PARAMETER CONDITIONS MIN TYP MAX UNITS Input voltage range 3.1 20 V Output voltage, VOUT Jumper selection on JP1. 0.98 1.0 1.02 V Output voltage, VOUT Jumper selection on JP2. 1.47 1.5 1.53 V Output voltage, VOUT Jumper selection on JP3. 2.45 2.5 2.55 V Output voltage, VOUT Jumper selection on JP4. 3.23 3.3 3.37 V Maximum continuous output current Derating is necessary for certain operating conditions. (Refer to the LTM4640 data sheet for more details). 20 A Default operating frequency 600 kHz Efficiency VIN = 12V, VOUT = 1V, IOUT = 20A. 83.5 % Quick Start Required Equipment

  • Power Supply
  • Electronic Load
  • Two Digital Multimeters (DMMs) Procedure The DC3107A evaluation board is an easy way to evaluate the performance of the LTM4640. See Figure 2 for test setup connections and use the following procedure. 1. With the power off, place the jumpers in the following positions: JP8 JP7 JP1 TO JP6 RUN MODE VOUT select ON Continuous-conduction mode (CCM) 1V 2. With the power off, connect the input voltage supply, electronic load, and DMMs, as shown in Figure 2. Preset the load current to 0A. 3. Turn on the input power and adjust the voltage supply between 3.1V and 20V. Ensure the input voltage does not exceed 20V. Check that the output voltage measures 1V ±2 %. 4. Once the proper output voltage is established, adjust the load current in the 0A to 20A range and observe the load regulation, efficiency, and other parameters. Measure the output voltage ripple across the output capacitor with a Bayonet Neill–Concelman (BNC) cable and the oscilloscope from J2. 5. Place the MODE pin jumper (JP7) in the DCM position to observe increased light load efficiency. 6. For optional load transient testing, an onboard transient circuit is provided to measure transient response. Place a positive pulse signal between the IO_STEP_CLK (E10) pin and the GND pin. The pulse amplitude sets the load step current amplitude. Keep the pulse width short (<1ms) and the pulse duty cycle low (<15%) to limit the thermal stress on the load transient circuit. Monitor the load step with a BNC connected to J1 (5mV/A).

Figure 8. Tested VOUT AC-Ripple at 12VIN, IOUT = 15A, VOUT Ripple is Tested Across C12

Evaluation Board User Guide DC3107A analog.com Rev. 0 7 of 11 DC3107A Evaluation Board Bill of Materials ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Evaluation Board Components 1 3 C1, C6, C31 CAP., 2.2µF, X7R, 10V, 20%, 0603 TDK, C1608X7R1A225M080AC 2 3 C2, C3, C38 CAP., 22µF, X5R, 25V, 10%, 1206 AVX, 12063D226KAT2A 3 1 C4 CAP., 1µF, X7R, 25V, 10%, 0603 TAIYO YUDEN, TMK107B7105KA-T 4 4 C5, C11, C12, C30 CAP., 220µF, X5R, 6.3V, 20%, 1206 MURATA, GRM31CR60J227ME11L 5 1 C7 CAP., 0.1µF, X7R, 25V, 10%, 0603 AVX, 06033C104KAT2A 6 1 C8 CAP., 100pF, X7R, 25V, 5%, 0603 AVX, 06033C101JAT2A 7 1 C10 CAP., 220µF, ALUM HYB, 35V, 20%, 10mm ×12.5mm, RADIAL, HVH SERIES SUN ELECTRONIC INDUSTRIES CORP., 35HVH220M+P 8 1 C18 CAP., 4.7µF, X7R, 10V, 10%, 0603 MURATA, GRM188Z71A475KE15D 9 1 C29 CAP., 0.022µF, X7R, 50V, 10%, 0603 KEMET, C0603C223K5RAC7867 10 1 C34 CAP., 1µF, X7R, 6.3V, 10%, 0402 MURATA, GRM155R70J105KA12D 11 1 C41 CAP., FEED THRU 0.022µF, 20%, 16V, 1A 50mΩ 0603 (1608 METRIC), 3-PC PAD MURATA, NFM18CC223R1C3D 12 1 C42 CAP., 27µF, FEED THRU, 6.3V, 20%, 1206, 3-TERM, 5mΩ DCR, 6A MURATA, NFM31PC276B0J3L 13 1 L2 IND., 0.08µH, PWR, 20%, 21.4A, 1.8mΩ, 4mm × 4mm, AEC-Q200 COILCRAFT, XEL4020-800MEC 14 1 Q1 XSTR., MOSFET, N-CH, 40V, 14A, DPAK (TO-252) VISHAY, SUD50N04-8M8P-4GE3 15 1 R3 RES., 10kΩ, 1%, 1/10W, 0603, AEC-Q200 VISHAY, CRCW060310K0FKEA 16 1 R4 RES., 15kΩ, 5%, 1/10W, 0603 YAGEO, RC0603JR-0715KL 17 1 R6 RES., 6.65kΩ, 1%, 1/10W, 0603 NIC, NRC06F6651TRF 18 1 R7 RES., 150kΩ, 5%, 1/10W, 0603, AEC-Q200 PANASONIC, ERJ3GEYJ154V 19 2 R8, R16 RES., 100kΩ, 1%, 1/10W, 0603 STACKPOLE ELECTRONICS, INC., RMCF0603FG100K 20 2 R9, R10 RES., 0Ω, 5%, 1/16W, 0402 ROHM, MCR01MZPJ000 21 1 R14 RES., 2.21kΩ, 1%, 1/10W, 0603 VISHAY, CRCW06032K21FKEA 22 1 R15 RES., 3.09kΩ, 1%, 1/10W, 0603 NIC, NRC06F3091TRF 23 1 R17 RES., 0Ω, 1/10W, 0603, AEC-Q200 VISHAY, CRCW06030000Z0EA 24 1 RS2 RES., 0.005Ω, 1%, 1W, 2512, METAL, SENSE, AEC-Q200 VISHAY, WSL25125L000FEA 25 1 U1 IC, STEP-DOWN µModule REG., BGA-49 ANALOG DEVICES, LTM4640EY#PBF

Evaluation Board User Guide DC3107A analog.com Rev. 0 8 of 11 ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Additional Evaluation Board Circuit Components 1 0 C13, C16, C22-C24, C37 CAP., OPTION, 0805 2 0 C9, C15, C19, C33, C36, C43, C44 CAP., OPTION, 0603 3 0 C17, C20, C21 CAP., OPTION, 1206 4 0 C25-C28 CAP., OPTION, 1210 5 0 C35 CAP., OPTION, 0402 6 0 C39 CAP., FEED THRU 0.1µF, 20%, 25V, 2A, 30mΩ 805 (2012 METRIC), 3-PC PAD MURATA, NFM21PC104R1E3D 7 0 C40 CAP., FEED THRU 0.1µF, 20%, 100V, 10A, 1.5mΩ 1206 (3216 METRIC), 3-PC PAD TDK, YFF31HC2A104MT000N 8 0 L1 IND., OPTION, 1812 9 0 R1, R2, R5, R11-R13, R19, R20 RES., OPTION, 0603 10 0 R18, R21-R23 RES., OPTION, 0402 Hardware For Evaluation Board Only 1 10 E1, E3, E5, E6, E8-E12, E14 TEST POINT, TURRET, 0.064" MTG. HOLE, PCB 0.062" THK MILL-MAX, 2308-2-00-80-00-00-07-0 2 4 E2, E4, E7, E13 CONN., BANANA JACK, FEMALE, THT, NON-INSULATED, SWAGE, 0.218" KEYSTONE, 575-4 3 2 J1, J2 CONN., RF, BNC, RCPT, JACK, 5-PIN, ST, THT, 50Ω AMPHENOL RF, 112404 4 5 JP1-JP4, JP6 CONN., HDR, MALE, 1 × 2, 2mm, VERT, ST, THT SULLINS CONNECTOR SOLUTIONS, NRPN021PAEN-RC 5 1 JP7 CONN., HDR, MALE, 2 × 3, 2mm, VERT, ST, THT SULLINS CONNECTOR SOLUTIONS, NRPN032PAEN-RC 6 1 JP8 CONN., HDR, MALE, 1 × 3, 2mm, VERT, ST, THT, NO SUBS. ALLOWED SAMTEC, TMM-103-02-L-S 7 4 MP1-MP4 STANDOFF, NYLON, SNAP-ON, 0.25" (6.4mm) KEYSTONE, 8831 8 3 XJP1, XJP7, XJP8 CONN., SHUNT, FEMALE, 2-POS, 2mm SAMTEC, 2SN-BK-G

Evaluation Board User Guide DC3107A analog.com Rev. 0 9 of 11 DC3107A Schematic

Evaluation Board User Guide DC3107A analog.com Rev. 0 10 of 11

Ordering Information

DC3107A The DC3107A evaluation board features the LTM4640 µModule regulator.

Revision History

0 09/24 Initial release —

Evaluation Board User Guide DC3107A Notes ALL INFORMATION CONTAINED HEREIN IS PROVIDED “AS IS” WITHOUT REPRESENTATION OR WARRANTY. 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 ARE SUBJECT TO CHANGE WITHOUT NOTICE. NO LICENSE, EIT HER EXPRESSED OR IMPLIED, IS GRANTED UNDER ANY ADI PATENT RIGHT, COPYRIGHT, MASK WORK RIGHT, OR ANY OTHER ADI INTELLECTUAL PROPERTY RIGHT RELATING TO ANY COMBINATION, MACHINE, OR PROCESS, IN WHICH ADI PRODUCTS OR SERVICES ARE USED. TRADEMARKS AND REGISTERED TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS. ALL ANALOG DEVICES PRODUCTS CONTAINED HEREIN ARE SUBJECT TO RELEASE AND AVAILABILITY. analog.com Rev. 0 11 of 11