BCR405UW6-7

BCR405UW6 50 TO 100mA LED CONSTANT CURRENT REGULATOR IN SOT26 Description Features The BCR405UW6 monolithically integrates a transistor, diodes, and resistors to function as a Constant Current Regulator (CCR) for LED driving. The device regulates with a preset 50mA nominal that can be adjusted with external resistor up to 100mA. It is designed for driving LEDs in strings and will reduce current at increasing temperatures to self-protect. Operating as a series linear CCR for LED string current control, it can be used in applications with supply voltages up to 40V. • With no need for additional external components, this CCR is fully integrated into the SOT26, minimizing PCB area and component count. • • • • • • • • • • • LED Constant Current Regulator Using PNP Emitter-Follower with Emitter Resistor to Current Limit IOUT = 50mA ± 10% Constant Current (Preset) IOUT Up to 100mA Adjustable with an External Resistor VS – 40V Supply Voltage PD up to 1W in SOT26 LED Dimming Using PWM up to 25kHz Negative Temperature Coefficient (NTC) Reduces IOUT with Increasing Temperature Parallel Devices to Increase Regulated Current Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ An Automotive-Compliant Part is Available Under Separate Datasheet (BCR405UW6Q) Applications Mechanical Data Constant Current Regulation (CCR) in: • • • • • Emergency Lighting Signage, Advertising, Decorative, and Architectural Lighting Retail Lighting in Fridge, Freezer Case, and Vending Machines • • • Case: SOT26 Case Material: Molded Plastic. “Green” Molding Compound. UL Flammability Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020 Terminals: Finish - Matte Tin Plated Leads. Solderable per MIL-STD-202, Method 208 Weight: 0.018 grams (Approximate) SOT26 Pin Name VS OUT Rext GND Top View Internal Device Schematic Pin Function Supply Voltage Regulated Output Current External resistor for adjusting Output Current Power Ground Top View Pin-Out Ordering Information (Note 4) Part Number BCR405UW6-7 Notes: Marking 405 Reel Size (inches) 7 Tape Width (mm) 8 Quantity per Reel 3,000 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain