BCR402UW6-7

BCR402UW6 20 to 100mA LED CONSTANT CURRENT REGULATOR in SOT26 Description Features The BCR402UW6 monolithically integrates a transistor, diodes, and resistors to function as a Constant Current Regulator (CCR) for LED driving. The device regulates with a preset 20mA nominal that can be adjusted with an external resistor up to 100mA. It is designed for driving LEDs in strings and reduces 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. • Without requiring 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 = 20mA ± 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 Data Sheet (BCR402UW6Q) Applications Mechanical Data Constant Current Regulation (CCR) in: • • • • • Emergency Lighting Signage, Advertising, Decorative, and Architectural Lighting Retail Lighting in Refrigerators, Freezer Cases, 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 Pin Function Supply Voltage Regulated Output Current External resistor for adjusting Output Current Power Ground Top View Pin-Out Internal Device Schematic Ordering Information (Note 4) Product BCR402UW6-7 Notes: Compliance Standard Marking 402 Reel Size (inches) 7 Tape Width (mm) 8 Quantity per Reel 3000 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