General Description
The BCR402W is a cost efficient LED driver to drive low power LEDs. The advantages towards resistor biasing are:
• homogenous light output despite of varying forward voltages in different LED strings
• homogenous light output of LEDs despite of voltage drop across long supply lines
• homogenous light output independent from supply voltage variations
• longer lifetime of the LEDs due to reduced output current at higher temperatures (negative thermal coefficient)

The advantages towards discrete solutions are:
• lower assembly cost
• smaller form factor
• higher reliability due to less soldering joints
• higher output current accuracy due to pretested LED drivers

FEATUREs
• LED drive current preset to 20 mA
• Output current adjustable up to 60 mA with an external resistor
• Easy paralleling of drivers to increase current
• Supply voltage up to 18 V
• High current accuracy at supply voltage variation
• Low voltage overhead of 1.2 V
• Up to 500 mW power dissipation in a small SOT343 package
• Negative thermal coefficient of -0.3 %/K reduces output current at higher temperatures
• RoHS compliant (Pb-free) package
• Automotive qualified according AEC Q101

APPLICATIONs
• Channel letters for advertising, LED strips for decorative lighting
• Aircraft, train, ship illumination
• Retrofits for general lighting, white goods like refrigerator lighting
• Medical lighting
• Automotive applications like CHMSL and rear combination lights