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LT1721IGN 数据表(PDF) 25 Page - Linear Technology |
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LT1721IGN 数据表(HTML) 25 Page - Linear Technology |
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25 / 28 page ![]() LT1720/LT1721 25 17201fc PACKAGE DESCRIPTION DD Package 8-Lead Plastic DFN (3mm × 3mm) (Reference LTC DWG # 05-08-1698) 3.00 0.10 (4 SIDES) NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON TOP AND BOTTOM OF PACKAGE 0.38 0.10 BOTTOM VIEW—EXPOSED PAD 1.65 0.10 (2 SIDES) 0.75 0.05 R = 0.115 TYP 2.38 0.10 (2 SIDES) 1 4 8 5 PIN 1 TOP MARK (NOTE 6) 0.200 REF 0.00 – 0.05 (DD) DFN 1203 0.25 0.05 2.38 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 1.65 0.05 (2 SIDES) 2.15 0.05 0.50 BSC 0.675 0.05 3.5 0.05 PACKAGE OUTLINE 0.25 0.05 0.50 BSC S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .016 – .050 (0.406 – 1.270) .010 – .020 (0.254 – 0.508) 45 0 – 8 TYP .008 – .010 (0.203 – 0.254) SO8 0303 .053 – .069 (1.346 – 1.752) .014 – .019 (0.355 – 0.483) TYP .004 – .010 (0.101 – 0.254) .050 (1.270) BSC 1 2 3 4 .150 – .157 (3.810 – 3.988) NOTE 3 8 7 6 5 .189 – .197 (4.801 – 5.004) NOTE 3 .228 – .244 (5.791 – 6.197) .245 MIN .160 .005 RECOMMENDED SOLDER PAD LAYOUT .045 .005 .050 BSC .030 .005 TYP INCHES (MILLIMETERS) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) |
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