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A6216 Datasheet(PDF) 4 Page - Allegro MicroSystems |
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A6216 Datasheet(HTML) 4 Page - Allegro MicroSystems |
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4 / 25 page  Automotive-Grade, Constant-Current 2 A PWM Dimmable Buck Regulator LED Driver A6214 and A6216 4 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Pinout Diagram for A6214 (LK Package) Terminal List Table for A6214 (LK Package) Number Name Function 1 VIN Supply voltage input voltage for IC and buck regulator 2 TON Regulator on-time setting resistor terminal. Connect a resistor between VIN and TON to set the switching frequency. 3 EN/PWM Logic input for Enable and PWM dimming 4 ADIM Analog dimming control voltage input 5 VCC Internal IC bias regulator output. Connect 1uF MLCC to GND. Can be used to supply up to 10mA for external load. 6 GND Ground terminal 7 CSL Current Sense (Lower end) feedback input for LED current 8 CSH Current Sense (Higher end) feedback input for LED current 9 BOOT DMOS gate driver bootstrap terminal 10 SW Switched output terminal - PAD Exposed pad for enhanced thermal dissipation; connect to GND Pinout Diagram for A6216 (LP Package) VIN TON EN ADIM VCC SW BOOT CSH CSL GND PAD 1 2 3 4 5 10 9 8 7 6 VIN TON EN/PWM ADIM VCC DR GND FULL SW BOOT CSH CSL GND FAULT FPWM RANGE 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PAD Terminal List Table for A6216 (LP Package) Number Name Function 1 VIN Supply voltage input voltage for IC and buck regulator 2 TON Regulator on-time setting resistor terminal. Connect a resistor between VIN and TON to set the switching frequency 3 EN/PWM Logic input for Enable and PWM dimming 4 ADIM Analog dimming control voltage input 5 VCC Internal IC bias regulator output. Connect 1uF MLCC to GND. Can be used to supply up to 10mA for external load 6 DR Dimming Ratio control. In stand-alone mode: connect to resistor divider network from VCC to set the dimming PWM duty cycle 7 GND Ground terminal 8 FULL Selects 100% dimming duty cycle or DR control of duty cycle 9 RANGE Selects DR control range, high range gives DR control from 5% to 100%, low range gives DR control from 5% to 33%. 10 FPWM Dimming PWM frequency control. In stand-alone mode, connect a resistor to GND to set the dimming PWM frequency 11 FAULT Open-drain output which is pulled low in case of fault. Connect through an external pull-up resistor to the desired logic level. 12 GND Ground terminal 13 CSL Current Sense (Lower end) feedback input for LED current 14 CSH Current Sense (Higher end) feedback input for LED current 15 BOOT DMOS gate driver bootstrap terminal 16 SW Switched output terminal - PAD Exposed pad for enhanced thermal dissipation; connect to GND |
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