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| BCR420U Datasheet, PDF (3/12 Pages) Infineon Technologies AG – LED Driver | |||
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BCR420U / BCR421U
Electrical Characteristics at TA=25°C, unless otherwise specified
Parameter
Symbol
Values
Unit
min. typ. max.
Characteristics
Collector-emitter breakdown voltage
IC = 1 mA, IB = 0
VBR(CEO) 40
-
-V
Enable current
VEN = 24 V , BCR420U
VEN = 3.3 V , BCR421U
IEN
mA
-
1.2
-
-
1.2
-
DC current gain
IC = 50 mA, VCE = 1 V
hFE
200 350 500 -
Internal resistor
IRint = 10 mA
Bias resistor
BCR420U
Rint
65 90 105 â¦
RB
kâ¦
-
20
-
BCR421U
-
1.5
-
Output current
Vout = 1.4 V, VEN = 24 V, BCR420U
Vout = 1.4 V, VEN = 3.3 V, BCR421U
Vout > 2.0 V, VEN = 24 V, REXT = 5.1 â¦,
BCR420U
Iout
mA
8
10 12
8
10 12
-
150
-
Vout > 2.0 V, VEN = 3.3 V, REXT = 5.1 â¦,
BCR421U
-
150
-
Voltage drop (VS - VE)
Iout = 10mA
Vdrop
0.85 0.95 1.05 V
DC Characteristics with stabilized LED load
Lowest sufficient supply voltage overhead
VSmin
-
1.4
-V
Iout > 18mA
Output current change versus TA
âIout/Iout
%/K
VEN = 24 V; Vout > 2.0 V, BCR420U
- -0.2 -
VEN = 3.3 V; Vout > 2.0 V, BCR421U
- -0.2 -
Output current change versus VS
VEN = 24 V; Vout > 2.0 V, BCR420U
VEN = 3.3 V; Vout > 2.0 V, BCR421U
âIout/Iout
%/V
-
1
-
-
1
-
3
2010-01-15
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