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User Guide for ANALOG DEVICES models including: MAX26404, MAX26405, MAX26406, MAX26404 Evaluation Board Kit, MAX26404, Evaluation Board Kit, Board Kit, Kit
16 ore fa — This MAX26406 EV kit user guide must be used with the. MAX26404/MAX26405/MAX26406 data sheet. Procedure. The EV kit is fully assembled and tested. To verify ...
4 hours ago — Quick Start. Required Equipment. • MAX26406 EV kit. • Power supply. • Voltmeter. • Electronic load. This MAX26406 EV kit user guide must be used with the.
File Info : application/pdf, 10 Pages, 742.94KB
DocumentDocumentEvaluation Board User Guide MAX26406 Evaluation Kit Evaluates MAX26404/MAX26405/MAX26406 General Description The MAX26406 evaluation kit (EV kit) provides a proven design to evaluate the MAX26406, 2.1MHz synchronous Silent Switcher® buck converter in a 17-pin, side-wettable FC2QFN package. The various test points and jumpers are included for the evaluation. The MAX26406 EV kit comes with the MAX26406AFOBY+ installed (2.1MHz, 3.3V). The MAX26406 EV kit output voltage is fixed and is easily configured with minimum component changes. Use this EV kit to evaluate all variants of the MAX26404/MAX26405/MAX26406 with minimal component changes. Benefits and Features · 3V to 36V Input Supply Range · 5V or 3.3V Fixed Output Voltage, or Adjustable Between 0.8V and 10V · Delivers up to 6A Output Current (up to 5A for MAX26405, up to 4A for MAX26404) · Frequency Synchronization Input · 99% Duty-Cycle Operation with Low Dropout · Spread Spectrum Frequency Modulation · Voltage-Monitoring PGOOD Output · Proven PCB Layout · Fully Assembled and Tested Ordering Information appears at end of data sheet. Quick Start Required Equipment · MAX26406 EV kit · Power supply · Voltmeter · Electronic load This MAX26406 EV kit user guide must be used with the MAX26404/MAX26405/MAX26406 data sheet. Procedure The EV kit is fully assembled and tested. To verify the board operation, do the following steps: 1. While observing safe electrostatic discharge (ESD) practices, carefully remove the MAX26406 EV kit board out of its packaging. Inspect the board to ensure that no damage occurred during shipment. Jumpers/shunts are preinstalled prior to testing and packaging. 2. Verify that all jumpers are in their default positions, as shown in Table 1. 3. Connect the positive and negative terminals of the power supply to the VSUP_FILTER and GND test pads, respectively. 4. Connect the positive terminal of the voltmeter to VOUT and the negative terminal to GND3. 5. Set the power supply voltage to 14V. Turn on the power supply. 6. Make sure that the voltmeter displays an output voltage of 3.3V. 7. Connect the electronic load positive terminal to VOUT and the negative terminal to GND3. Set the load to 1A. 8. Turn on the electronic load and increase the current to 6A. 9. Make sure that the voltmeter displays the output voltage of 3.3V ± 1.8%. 319-101064; Rev 0; 6/24 One Analog Way, Wilmington, MA 01887-2356, U.S.A. DOCUMENT FEEDBACK Tel: 781.329.4700 TECHNICAL SUPPORT ©2024 Analog Devices, Inc. All rights reserved. Evaluation Board User Guide EV Kit Photo MAX26406 Evaluation Kit Table 1. Jumper Connection Guide JUMPER ENABLE J1 DEFAULT CONNECTION Pin 1-2 Pin 1-2 J2 Pin 1-2 FEATURE Buck controller enabled. Forced-PWM Mode. PGOOD is pulled up to BIAS when OUT is in regulation. analog.com Rev 0 2 of 10 Evaluation Board User Guide MAX26406 Evaluation Kit Detailed Description The MAX26406 EV kit provides a proven layout for all variants of the MAX26404/MAX26405/MAX26406 synchronous buck regulator. The device accepts input voltages as high as 36V and delivers up to 6A (5A for MAX26405, 4A for MAX26404). Synchronization Input (SYNC) The device can operate in two modes: Forced-PWM (FPWM) or Skip mode. Skip mode has better efficiency for light-load conditions. When SYNC is pulled low, the IC operates in Skip mode for light loads and PWM mode for larger loads. When SYNC is pulled high, the device is forced to operate in PWM mode across all load conditions. SYNC is also used to synchronize with an external clock. The device operates in FPWM mode when SYNC is connected to an external clock. Buck Output Monitoring (PGOOD) This EV kit provides a power-good output test point (PGOOD) to monitor the status of the buck output (OUT). PGOOD is high impedance when the output is in regulation. PGOOD is low impedance when the output voltage drops below 7% (typ) of its nominal regulated voltage. Programming Buck Output Voltage The EV kit comes installed with MAX26406AFOBVY+, which can provide a fixed 3.3V output voltage or an adjustable 0.8V to 10V output voltage. To program VOUT voltage, place appropriate resistors in the positions R7 and R8 according to the following equation: 7 = 8 × ( - 1) where VFB = 0.8V and R8 = 10k~100k. Replace output capacitors C12 to C15 with appropriate capacitors according to Table 1. Recommended Components for Adjustable Output Voltage, as shown in the MAX26404/MAX26405/MAX26406 data sheet. A feedforward capacitor C16 in parallel with R7 is also recommended for the adjustable output configuration. For the C16 value, refer to the MAX26404/MAX26405/MAX26406 data sheet. Evaluating Other Variants The EV kit comes installed with the 3.3V/2.1MHz, 6A variant (MAX26406AFOBY+). The other MAX26404/MAX26405/MAX26406 variants can be installed with minimal component changes. Ordering Information PART MAX26406EVKIT# #Denotes RoHS-compliant. TYPE 3.3V/2.1MHz EV Kit analog.com Rev 0 3 of 10 Evaluation Board User Guide MAX26406 Evaluation Kit MAX26406 EV Kit Bill of Materials REFERENCE DESIGNATOR BIAS, FBR, GND2, GNDS, GNDS1-GNDS3, PGOOD, SYNCOUT, VEA,VSUPS C0 PARTS COMMON TO ALL VARIANTS MANUFACTURER PART NUMBER MANUFACTURER VALUE 5012 KEYSTONE N/A CGA6P3X7S1H106K250AB TDK 10UF C1, C2 CGA3E2X7R1H222K080AD TDK 2200PF C3 EEH-ZA1H101P PANASONIC 100UF C4, C5 CGA5L3X7R1H475K160AB TDK C6, C9 UMK107BJ105KA TAIYO YUDEN C7, C8, C10, C17 CGA3E2X7R1H104K080AE TDK C11 GRM188Z71C225KE43 MURATA 4.7UF 1UF 0.1UF 2.2UF ENABLE, J1 PEC03SAAN SULLINS PEC03SAAN GND, GND3, VOUT, VSUP_FILTER 575-4 KEYSTONE 575-4 J2 PEC02SAAN SULLINS PEC02SAAN L0 R2 R4, R5 C16 R6 R7, R8 BLM41PG600SH1 ERA-2AEB103 RC0402JR-070RL MURATA 60 PANASONIC 10K YAGEO PHYCOMP 0 DESCRIPTION TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD HOLE=0.063IN; WHITE; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; CAP; SMT (1210); 10UF; 10%; 50V; X7S; CERAMIC CAP; SMT (0603); 2200PF; 10%; 50V; X7R; CERAMIC CAP; SMT (CASE_G); 100UF; 20%; 50V; ALUMINUM- ELECTROLYTIC CAP; SMT (1206); 4.7UF; 10%; 50V; X7R; CERAMIC CAP; SMT (0603); 1UF; 10%; 50V; X5R; CERAMIC CAP; SMT (0603); 0.1UF; 10%; 50V; X7R; CERAMIC CAP; SMT (0603); 2.2UF; 10%; 16V; X7R; CERAMIC CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 3PINS RECEPTACLE; JACK; BANANA; 0.203IN [5.2MM] DIA X 0.218IN [5.5MM] L; 0.203D/0.218L; NICKEL PLATED BRASS CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 2PINS INDUCTOR; SMT (1806); FERRITE-BEAD; 60 IMPEDANCE AT 100MHz; 6A RES; SMT (0402); 10K; 0.10%; +/- 25PPM/DEGK; 0.0630W RES; SMT (0402); 0; 5%; JUMPER; 0.0630W Do not install Do not install Do not install analog.com Rev 0 4 of 10 Evaluation Board User Guide MAX26406 Evaluation Kit REFERENCE DESIGNATOR L1 L2 C12, C15 C13, C14 U1 MANUFACTURER PART NUMBER XEL5030-102ME XEL5030-102ME CGA6P1X7R1C226M250AC MAX26406AFOBY+ 2.1MHz VARIANT MANUFACTURER VALUE COILCRAFT COILCRAFT 1UH 1UH TDK 22UF ANALOG DEVICES MAX26406AFOBY+ DESCRIPTION INDUCTOR, SMT, 1UH CAP; SMT (1210); 22UF; 10%; 16V; X7R; CERAMIC Do not install IC, 17 FC2QFN, 6A, 3.3V, 2.1MHz REFERENCE DESIGNATOR L1 L2 C12, C13, C15 C14 U1 MANUFACTURER PART NUMBER XEL5030-222ME XEL6060-472ME GRT32EC81C476KE13 MAX26406AFODY+ 400KHz VARIANT MANUFACTURER VALUE DESCRIPTION COILCRAFT COILCRAFT MURATA ANALOG DEVICES 2.2UH 4.7UH 47UF INDUCTOR, SMT, 2.2UH INDUCTOR, SMT, 4.7UH CAP; SMT (1210); 47UF; 10%; 16V; X6S; CERAMIC Do not install MAX26406AFODY+ IC; 17 FC2QFN; 6A; 3.3V; 400KHz analog.com Rev 0 5 of 10 Evaluation Board User Guide MAX26406 EV Kit Schematic MAX26406 Evaluation Kit analog.com Rev 0 6 of 10 Evaluation Board User Guide MAX26406 Evaluation Kit MAX26406 EV Kit PCB Layout Diagrams MAX26406 EV Kit Component Placement Guide--Top Silkscreen MAX26406 EV Kit PCB Layout--Layer 2 MAX26406 EV Kit PCB Layout--Top analog.com MAX26406 EV Kit PCB Layout--Layer 3 Rev 0 7 of 10 Evaluation Board User Guide MAX26406 Evaluation Kit MAX26406 EV Kit PCB Layout--Bottom MAX26406 EV Kit Component Placement Guide--Bottom Silkscreen analog.com Rev 0 8 of 10 Evaluation Board User Guide Revision History REVISION REVISION NUMBER DATE 0 6/24 Initial release MAX26406 Evaluation Kit DESCRIPTION PAGES CHANGED -- analog.com Rev 0 9 of 10 Evaluation Board User Guide Notes MAX26406 Evaluation Kit 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 LICENCE, EITHER 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 WHICH ADI PRODUCTS ALL INFORMATION CONTAINED HEREIN IS PROVIDED "AS IS" WITHOUT REPRESENTATION OR WARRANTY. NO RESPONSIBILITY IS OR SERVICES ARE USED. TRADEMARKS AND REGISTERED TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS. analog.com Rev 0 10 of 10