MECHANICAL CASE OUTLINE PACKAGE DIMENSIONS QFN28 4x4, 0.4P CASE 485AR−01 ISSUE A DATE 20 NOV 2009 1 SCALE 2:1 PIN ONE REFERENCE B A D ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ L L1 DETAIL A ALTERNATE TERMINAL CONSTRUCTIONS E NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.15 AND 0.30 MM FROM THE TERMINAL TIP. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. DIM A A1 A3 b D D2 E E2 e K L L1 ÏÏ ÏÏ EXPOSED Cu 0.10 C 0.10 C L MOLD CMPD DETAIL B TOP VIEW ALTERNATE CONSTRUCTION A DETAIL B A3 0.10 C GENERIC MARKING DIAGRAM* 0.08 C NOTE 4 A1 SIDE VIEW SEATING PLANE C XXXXXX XXXXXX ALYWG G 0.10 C A B D2 DETAIL A K 8 0.10 C A B 15 28X L E2 1 PIN 1 INDICATOR 22 e 28X BOTTOM VIEW b 0.07 C A B 0.05 C MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.20 REF 0.15 0.25 4.00 BSC 2.50 2.70 4.00 BSC 2.50 2.70 0.40 BSC 0.30 REF 0.30 0.50 −−− 0.15 XXXXX = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) *This information is generic. Please refer to device data sheet for actual part marking. Pb−Free indicator, “G”, may or not be present. RECOMMENDED MOUNTING FOOTPRINT NOTE 3 4.30 2.71 28X 0.62 1 2.71 4.30 PACKAGE OUTLINE 0.40 PITCH DOCUMENT NUMBER: 98AON30349E 28X 0.26 DIMENSIONS: MILLIMETERS Electronic versions are uncontrolled except when accessed directly from the Document Repository. Printed STATUS: ON SEMICONDUCTOR STANDARD versions are uncontrolled except when stamped “CONTROLLED COPY” in red. NEW STANDARD: © Semiconductor Components Industries, LLC, 2002 Case Outline Number: http://onsemi.com QFN28 4X4, 0.4P DESCRIPTION: October, 2002 − Rev. 0 PAGE 1 OFXXX 2 1 DOCUMENT NUMBER: 98AON30349E PAGE 2 OF 2 ISSUE REVISION DATE O RELEASED FOR PRODUCTION. REQ. BY M. LIN. 15 MAY 2008 A CHANGED DIMENSIONS D2, E2, K, L, MOUNTING FOOTPRINT AND MARKING DIAGRAM INFORMATION. REQ. BY J. LIU. 20 NOV 2009 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. © Semiconductor Components Industries, LLC, 2009 November, 2009 − Rev. 01A Case Outline Number: 485AR