BCR401R Datasheet, PDF (3/3 Pages) Infineon Technologies AG – LED Driver(Supplies stable bias current even at low battery voltage)

BCR401R
Total power dissipation P_tot = f(T_S)
500
mW
300
200
Output current versus supply voltage
I_out = f (V_S); R_ext = Parameter
Load: two LEDs with V_F = 3.8V in series
10 ^-1
Rext = 36 Ohm
Rext = 82 Ohm
Rext = 160 Ohm
Rext = open
A
10 ^-2
100
00 _{20 40 60 80 100 120 °C 150}
T_S
Supply current versus supply voltage
I_S = f(V_S)
Load: two LEDs with V_F = 3.8V in series
10 ^-3
A
10 ^-3
0 2 4 6 8 10 12 14 16 V 20
V_S
Application Circuit:
B C R 401R
+V s
3
R e x t V d ro p
4
10 ^-4
1
2
Is
Io u t
10 ^-5
0 2 4 6 8 10 12 14 16 V 20
V_S
3
Aug-29-2001