BCR405UW6Q

Description

The BCR405UW6Q is a linear LED driver that is designed to meet the stringent requirements of automotive applications.

The device monolithically integrates a transistor, diodes, and resistors to function as a Constant Current Regulator (CCR) for LED driving. It regulates with a preset 50mA nominal that can be adjusted with an 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 package, minimizing PCB area and component count.

Feature(s)

• LED Constant Current Regulator Using PNP Emitter-Follower with Emitter Resistor to Current Limit
• I_OUT = 50mA ± 10% Constant Current (Preset)
• I_OUT up to 100mA Adjustable with an External Resistor
• V_S – 40V Supply Voltage
• P_D up to 1W in SOT26
• LED Dimming Using PWM up to 25kHz
• Negative Temperature Coefficient (NTC) Reduces I_OUT 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)
• The BCR405UW6Q is suitable for automotive applications requiring specific change control; this part is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

Constant current regulation (CCR) in automotive LED lighting:

• • Interior and exterior automotive LED lighting
  • Dome and mood lighting
  • Puddle lighting
  • Side marker lights