Analog Devices EVAL-LT8355-1-AZ Скачать руководство пользователя страница 14

14

DEMO MANUAL EVAL-LT8355-1-AZ

Rev. 0

 

ANALOG DEVICES, INC. 2022

10/22

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.

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. Do not use the Evaluation 

Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) 

and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to 

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 

Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is 

NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all 

be considered the confidential and proprietary information of ADI. Customer may not 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 promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile 

or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited 

to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS 

Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF 

LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY 

DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE 

IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS 

LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING 

BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE 

HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States 

federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts 

(excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits 

to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.

Содержание EVAL-LT8355-1-AZ

Страница 1: ...lters combined with proper board layout and SSFM are very effective in reducing EMI to comply with CISPR25 class 5 limits Please follow the recommended layout and the four layer PCB thickness of EVAL...

Страница 2: ...n LED to LED CH1 R14 0 R11 1M R10 15k CH2 R52 287k R53 10k R47 10k 81 36 V V Peak Efficiency SSFM ON PVIN 12V CH1 VLED 72V ILED 450mA CH2 VLED 30V ILED 1A with Filters without Filters 90 91 Peak Switc...

Страница 3: ...tage is between 8V and 18V for proper operation at max LED current 4 Observe the LED strings running at the programmed LED current 5 To change the brightness with analog dimming the CTRL1 pin is used...

Страница 4: ...eval lt8355 1 az F02 Figure 2 Setup Drawing for EVAL LT8355 1 AZ Channel 1 as Boost LED Driver and Channel 2 as Buck Boost Mode LED Driver See Boost LED Driver Setup Section for More Information on B...

Страница 5: ...T VREF VIN FB FB R1 R2 40k 10k 10k 10k R1 Q a Boost a Buck Boost Figure 3 Proper Star Up Configuration Boost Calculate R1 and R2 to set desired VOUT_OVP volt age and VFB to 400mV at VIN_MIN VIN_MIN 40...

Страница 6: ...AZ External 150Hz PWM Dimming with EMI Filters 12VIN Channel 1 72VLED 450mA Channel 2 30VLED 1A fSW 250kHz 100 TO 125 SSFM BOTH CHANNELS ON WITH FILTERS WITHOUT FILTERS INPUT VOLTAGE V 8 10 12 14 16...

Страница 7: ...oad Step Transient Response 12VIN fSW 250kHz 100 TO 125 SSFM 200 s DIV VCTRL1 2 5V DIV ILED1 500mA DIV ILED2 500mA DIV eval lt8355 1 az F07 eval lt8355 1 az F08 Figure 8 EVAL LT8355 1 AZ Thermal Image...

Страница 8: ...LT8355 1 AZ WITH SHIELD AMBIENT FREQUENCY MHz 0 1 1 10 108 20 10 0 10 20 30 40 50 60 70 80 AVERAGE CE dB V eval lt8355 1 az F09b CLASS 5 PEAK LIMIT EVAL LT8355 1 AZ EVAL LT8355 1 AZ WITH SHIELD AMBIE...

Страница 9: ...rt number for an example shield can be found in the Parts List section in the Optional EMI EMISSIONS SHIELD OPTION Figure 12 EVAL LT8355 1 AZ Top Silkscreen Outlining Placement of Shield Clips and EMI...

Страница 10: ...SQJA72EP T1_GE3 15 2 M4 M10 XSTR MOSFET P CH 100V 33 6A POWERPAK SO 8L AEC Q101 VISHAY SQJ211ELP T1_GE3 16 1 Q2 XSTR PNP 100V 1A SOT 23 3 AEC Q101 DIODES INC FMMT593QTA 17 3 R1 R35 R36 RES 100k 1 1 1...

Страница 11: ...Q200 VISHAY CRCW060310R0JNEA 46 0 CL1 CL6 OPTION WE SHC CABINET CLIP 6 5mm 0 8mm 1 27mm WURTH 369 000 00 47 0 SH1 OPTION WE SHC SHIELDIY 61 5mm 61 5mm WURTH 360002 Optional Electrical Components 48 0...

Страница 12: ...k 1 0603 FB2 OPT C20 OPT L1 8 2uH XAL6060 822MEC 1 2 R6 OPT C17 OPT 0402 TP8 EN UVLO FB3 OPT C1 OPT 0402 R1 100K 1 R21 OPT M4 SQJ211ELP 5 2 4 1 3 C18 OPT 0402 C22 4 7uF 25V 1210 R10 15k 1 R22 OPT C12...

Страница 13: ...22 ISN2 20 ISP2 19 GND 29 PWM2 11 PWMTG2 21 RT 12 SENSEN2 25 SENSEP2 24 FAULT2 13 VC2 17 VREF 14 C42 2 2uF M10 SQJ211ELP 1 2 5 3 4 C36 4 7uF 1210 100V R45 OPT FB9 FBMH2012HM331 T TP18 TP17 VC2 R37 OPT...

Страница 14: ...ot 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 pr...

Отзывы: