BCR321U Infineon Technologies, BCR321U Datasheet
BCR321U
Specifications of BCR321U
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BCR321U Summary of contents
Page 1
... LED current ILED of 150mA to 200mA. Internal breakdown voltage is >16V, this is the maximum voltage that the LED driver IC can sustain when the ouput is directly connected to supply voltage. The BCR320U/BCR321U can be operated at supply voltages of 16V or higher, by regarding the voltage drop of the LED load, which reduces the supply voltage to the maximum output voltage of the driver ...
Page 2
... Application Note Thermal Resistance thJA Typical Application +Vs 4 µC 3 Pin Configuration 2;3;5 = OUT Symbol out V out 102 °C tot stg Symbol R thJS 2 BCR320U / BCR321U OUT EN 1 OUT 2,3,5 Rext 6 GND 4 BCR321U Package 4 = GND SC74 ext SC74 Value 25 4.5 300 16 0.5 1000 150 -65 ... 150 Value 50 ...
Page 3
... Rext Characteristics with stabilized LED load Lowest sufficient supply voltage overhead I > 18mA out Output current change versus > 2.0 V, BCR320U EN out > 2.0 V, BCR321U EN out Output current change versus > 2.0 V, BCR320U EN out > 2.0 V, BCR321U EN out =25°C, unless otherwise specified A Symbol ...
Page 4
... Permissible Pulse Load totmax totDC Permissible Pulse Load R tot 100 120 °C 150 0.005 0.01 0.02 0.05 0.1 0.2 0 BCR320U / BCR321U = thJS 2010-01- 0,5 0,2 0,1 0,05 0,02 0,01 0,005 ...
Page 5
... Rext = open 0. out BCR320U: Output current versus V out = open ext out T = Parameter A 0 -40° 25°C 0. 85°C 0.07 0.06 0.05 0.04 0.03 0.02 0. out 5 BCR320U / BCR321U ); ext EN Vout = 5.4V Vout = 1. Ohm ext TA = -40° 25° 85° 2010-01-15 ext 2 Ohm 10 R ext. out V ...
Page 6
... BCR320U: Output current versus V out Ohm; ext out T = Parameter A 0. 25° -40° 85°C A 0.01 0.005 out BCR320U: Output current versus Ohm ext out T = Parameter A 0 BCR320U / BCR321U ); open; EN out ext TA = -40° 25° 85° 2 Ohm; EN out ext TA = 85° 25° -40° 2010-01- ...
Page 7
... BCR320U: Output current versus 2.0 V; out EN out R = Parameter ext 0.3 Rext = 3 Ohm Rext = 4 Ohm A Rext = 6 Ohm Rext = 10 Ohm 0.1 Rext = 20 Ohm Rext = open BCR321U: Output current versus 3.3 V; out out Parameter ext 0 BCR320U: Enable current versus Parameter A mA 1.5 ...
Page 8
... V; R out Parameter A 0 25° 85° -40°C 0 BCR321U: Output current versus V out open; ext out T = Parameter A 0. out BCR321U: Output current versus V out = 3 Ohm ext out T = Parameter A 0.02 A 0.01 0.005 out 8 BCR320U / BCR321U ); Ohm ext TA = -40° 25° 85° 2.0 V ...
Page 9
... Rext = 3 Ohm A 0 BCR321U: Output current versus Ohm; ext out T = Parameter A 0 -40° 25° 85°C 0 BCR321U: Enable current versus Parameter Rext = 4 Ohm Rext = 6 Ohm 2 Rext = 10 Ohm 1 Rext = 20 Ohm Rext = open BCR320U / BCR321U ); Ohm; EN out ext TA = 85° 25° -40° ...
Page 10
... EN 1 OUT BCR321U Application hints BCR320U / BCR321U serve as an easy to use constant current sources for LEDs. In stand alone application an external resistor can be connected to adjust the current from 250 mA. R can be determined by using the diagram 'Output current versus ext external resistor'. Please take into account that the resulting output currents will be slightly lower due to the self heating of the component and the negative thermal coefficient ...
Page 11
... For symmetric types no defined Pin 1 orientation in reel. Package SC74 ±0.2 B (0.35 +0.1 0.35 -0.05 0 0.95 1.9 0.5 0.95 Manufacturer 2005, June Date code (Year/Month) BCW66H Type code 4 3.15 Pin 1 marking 11 BCR320U / BCR321U 1.1 MAX. +0.1 0.15 -0.06 A 0.1 MAX. 0 0.2 1.15 2010-01-15 ...
Page 12
... Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail reasonable to assume that the health of the user or other persons may be endangered. BCR320U / BCR321U 12 2010-01-15 ...