BCR405UE6327HTSA1

BCR405UE6327HTSA1 Datasheet

BCR405U

Part	Datasheet
BCR405UE6327HTSA1	BCR405UE6327HTSA1 (pdf)

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BCR405U LED Driver • LED drive current of 50mA • Output current adjustable up to 65mA with external resistor • Supply voltage up to 40V • Easy paralleling of drivers to increase current • Low voltage overhead of 1.4V • High current accuracy at supply voltage variation • No EMI • High power dissipation of 750mW • Reduced output current at higher temperatures - Negative thermal coefficient of / K • RoHS compliant pb-free small and robust SC-74 package • Qualified according to AEC Q101 • 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 General Description The BCR405U is a cost efficient LED driver to drive low power LED’s. The advantages towards resistor biasing are • homogenous light output despite varying forward voltages in different LED strings • homogenous light output of LED’s despite voltage drop across long supply lines • homogenous light output independent from supply voltage variations • longer lifetime of the LED’s due to reduced output current at higher temperatures negative thermal coefficient The advantages towards discrete solutions are • lower assembly cost • smaller form factor • better quality due to less soldering points • higher output current accuracy due to pretested LED drivers Dimming is possible by using an external digital transistor at the ground pin. The BCR405U can be operated at higher supply voltages by putting LED’s between the power supply +VS and the power supply pin of the LED driver. You can find further details in the application note AN097. The BCR405U is a perfect fit for numerous low power LED applications by combining small form factor with low cost. These LED drivers offer several advantages to resistors like significantly higher current control at very low voltage drop ensuring high lifetime of LED’s. 2009-07-31 Pin Configuration BCR405U GND 1 BCR405U 6 Rext Out 2 5 Out BCR 405U +Vs 4 Rext o p tio n a l Vdrop Out 3 2,3,5 Iout Type BCR405U Marking Pin Configuration 1 = GND 2;3;5 = Iout 4 = VS 6 = Rext Symbol VS Iout Vout VR Ptot Tj Tstg Value 40 65 38 750 150

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BCR405U

LED Driver
• LED drive current of 50mA
• Output current adjustable up to 65mA with external resistor
• Supply voltage up to 40V
• Easy paralleling of drivers to increase current
• Low voltage overhead of 1.4V
• High current accuracy at supply voltage variation
• No EMI
• High power dissipation of 750mW
• Reduced output current at higher temperatures - Negative thermal coefficient of / K
• RoHS compliant pb-free small and robust SC-74 package
• Qualified according to AEC Q101
• 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

General Description The BCR405U is a cost efficient LED driver to drive low power LED’s. The advantages towards resistor biasing are
• homogenous light output despite varying forward voltages in different LED strings
• homogenous light output of LED’s despite voltage drop across long supply lines
• homogenous light output independent from supply voltage variations
• longer lifetime of the LED’s due to reduced output current at higher temperatures negative thermal coefficient The advantages towards discrete solutions are
• lower assembly cost
• smaller form factor
• better quality due to less soldering points
• higher output current accuracy due to pretested LED drivers Dimming is possible by using an external digital transistor at the ground pin. The BCR405U can be operated at higher supply voltages by putting LED’s between the power supply +VS and the power supply pin of the LED driver. You can find further details in the application note AN097. The BCR405U is a perfect fit for numerous low power LED applications by combining small form factor with low cost. These LED drivers offer several advantages to resistors like significantly higher current control at very low voltage drop ensuring high lifetime of LED’s.
2009-07-31

Pin Configuration

BCR405U

GND 1

BCR405U
6 Rext

Out 2
5 Out

BCR 405U
+Vs 4

Rext o p tio n a l

Vdrop

Out 3
2,3,5

Iout

Type BCR405U

Marking

Pin Configuration
1 = GND 2;3;5 = Iout 4 = VS
6 = Rext

Symbol VS Iout Vout VR Ptot Tj Tstg

Value 40 65 38 750 150

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Datasheet ID: BCR405UE6327HTSA1 637654