BCR405UW6 50 TO 100mA LED CONSTANT CURRENT REGULATOR IN SOT26 (SC74R) Description Features The BCR405U monolithically integrates a transistor, diodes and LED Constant Current Regulator Using PNP Emitter-Follower with resistors to function as a Constant Current Regulator (CCR) for LED Emitter Resistor to Current Limit driving. The device regulates with a preset 50mA nominal that can be I = 50mA 10% Constant Current (Preset) OUT adjusted with external resistor up to 100mA. It is designed for driving I Up to 100mA Adjustable with an External Resistor OUT LEDs in strings and will reduce current at increasing temperatures to V 40V Supply Voltage S self-protect. Operating as a series linear CCR for LED string current P up to 1W in SOT26 (SC74R) D control then it can be used in applications with supply voltages up to LED Dimming Using PWM up to 25kHz 40V. Negative Temperature Coefficient (NTC) Reduces I with OUT Increasing Temperature With no need for additional external components, this CCR is fully Parallel Devices to Increase Regulated Current integrated into a SOT26 (SC74R) minimizing PCB area and Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) component count. Halogen and Antimony Free. Green Device (Note 3) Qualified to AEC-Q101 Standards for High Reliability An Automotive-Compliant Part is Available Under Separate Datasheet (BCR405UW6Q) Mechanical Data Applications Case: SOT26 (SC74R) Constant current regulation (CCR) in: Case Material: Molded Plastic. Green Molding Compound. UL Flammability Rating 94V-0 Emergency Lighting Moisture Sensitivity: Level 1 per J-STD-020 Signage, Advertising, Decorative and Architectural Lighting Terminals: Finish - Matte Tin Plated Leads. Solderable per Retail Lighting in Fridge, Freezer Case and Vending Machines MIL-STD-202, Method 208 e3 Weight: 0.018 grams (Approximate) SOT26 (SC74R) VS GND R EXT Pin Name Pin Function VS Supply Voltage OUT OUT OUT Regulated Output Current External Resistor for R EXT OUT VS Adjusting Output Current GND Power Ground Top View Pin-Out Top View Internal Device Schematic Ordering Information (Note 4) Product Marking Reel Size (inches) Tape Width (mm) Quantity per Reel BCR405UW6-7 405 7 8 3,000 Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See BCR405UW6 Marking Information SOT26 (SC74R) 405 = Part Marking (See Ordering Information) 405 YM = Date Code Marking Y = Year (ex: D = 2016) M = Month (ex: 9 = September) Date Code Key Year 2017 2018 2019 2020 2021 2022 2023 Code E F G H I J K Aug Sep Oct Nov Dec Month Jan Feb Mar Apr May Jun Jul 8 9 O N D Code 1 2 3 4 5 6 7 Absolute Maximum Ratings (Voltage relative to GND, T = +25C, unless otherwise specified.) A Characteristic Symbol Value Unit Supply Voltage 40 V V S Output Current 100 mA I OUT Output Voltage 40 V V OUT Reverse Voltage Between All Terminals 0.5 V V R Thermal Characteristics Characteristic Symbol Value Unit (Note 5) 1,190 Power Dissipation P mW D (Note 6) 912 (Note 5) 105 Thermal Resistance, Junction to Ambient R JA (Note 6) 137 C/W Thermal Resistance, Junction to Lead (Note 7) R 50 JL Recommended Operating Junction Temperature Range T -55 to +150 J C Maximum Operating Junction and Storage Temperature Range -65 to +150 TJ , TSTG ESD Ratings (Note 8) Characteristics Symbol Value Unit JEDEC Class Electrostatic Discharge Human Body Model ESD HBM 800 V 1B Electrostatic Discharge Machine Model ESD MM 300 V B Notes: 5. For a device mounted with the OUT leads on 50mm x 50mm 2oz copper that is on a single-sided 1.6mm FR-4 PCB device is measured under still air conditions while operating in steady-state. 6. Same as Note 5, except mounted on 15mm x 15mm 1oz copper. 7. R = Thermal resistance from junction to solder-point (at the end of the OUT leads). JL 8. Refer to JEDEC specification JESD22-A114 and JESD22-A115. 2 of 13 BCR405UW6 May 2017 Diodes Incorporated www.diodes.com Document number: DS38544 Rev. 3 - 2