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A6216 Datasheet(PDF) 2 Page - Allegro MicroSystems |
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A6216 Datasheet(HTML) 2 Page - Allegro MicroSystems |
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2 / 25 page  Automotive-Grade, Constant-Current 2 A PWM Dimmable Buck Regulator LED Driver A6214 and A6216 2 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com SELECTION GUIDE Part Number Internal PWM and FAULT Flag Package Packing A6214KLKTR-T No 10-pin SOICN with exposed thermal pad 3000 pieces per 13-in reel A6216KLPTR-T Yes 16-pin TSSOP with exposed thermal pad 4000 pieces per 13-in reel Table of Contents Features and Benefits 1 Description 1 Applications 1 Packages 1 Typical Application Circuit (A6214) 1 Typical Application Circuit (A6216) 2 Selection Guide 2 Specifications 3 Absolute Maximum Ratings 3 Thermal Characteristics 3 Pinout Diagrams and Terminal List Tables 4 Functional Block Diagrams 5 Electrical Characteristics 7 Characteristic Performance 9 Functional Description 11 Application Circuit Diagrams 18 System Failure Detection and Protection 21 Package Outline Drawings 23 Figure 2: A6216 (LP Package) Typical Application Circuit LED+ GND VIN (4.5 to 55 V) CIN EN/PWM L1 GND D1 ADIM R1* * R1, R2, R3 used in stand-alone mode for internal PWM dimming VCC VCC FAULT External PWM dimming signal External analog dimming signal 3 4 6 7 5 RANGE BOOT GND CSH CSL FULL TON EN/PWM ADIM VCC A6216 1 2 8 DR GND FPWM 14 13 11 10 12 16 15 9 FAULT SW VIN FULL FULL = “HIGH” = 100% Duty Cycle FULL = “LOW” = DR controls Duty Cycle RANGE RANGE = “HIGH” = 0 to 100% Duty Cycle RANGE = “LOW” = 0 to 30% Duty Cycle RON CBIAS R2* R3* CBOOT CLED RSENSE |
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