BCR401R
LED Driver
Supplies stable bias current even at low battery
voltage
Low voltage drop of 0.75V
Ideal for stabilizing bias current of LEDs
Negative temperature coefficient protects
LEDs against thermal overload
4
3
1
2
EHA07188
Type
BCR401R
Marking
W5s
1 = GND
Pin Configuration
2 = I
out
3 = V
S
4 = R
ext
Package
SOT143R
Maximum Ratings
Parameter
Source voltage
Output current
Output voltage
Reverse voltage between all terminals
Total power dissipation,
T
S
= 87 擄C
Junction temperature
Storage temperature
Symbol
V
S
I
out
V
out
V
R
P
tot
T
j
T
stg
Value
18
60
16
0.5
330
150
-65 ... 150
mW
擄C
Unit
V
mA
V
Thermal Resistance
Parameter
Junction - soldering point
1)
Symbol
R
thJS
Value
190
Unit
K/W
1For calculation of
R
thJA
please refer to Application Note Thermal Resistance
1
Aug-29-2001