Datasheet

BCR420UW6 / BCR421UW6
Document number: DS37667 Rev. 3 - 2
3 of 13
www.diodes.com
November 2015
© Diodes Incorporated
BCR420UW6 / BCR421UW6
Electrical Characteristics (@T
A
= +25°C, unless otherwise specified.)
Characteristic
Symbol
Min
Typ
Max
Unit
Test Condition
Collector-Emitter Breakdown Voltage
BV
CEO
40
—
—
V
I
C
= 1mA
Enable Current
BCR420U
I
EN
—
1.2
—
mA
V
EN
= 24V
BCR421U
—
1.2
—
V
EN
= 3.3V
DC Current Gain
h
FE
200
350
500
—
I
C
= 50mA; V
CE
= 1V
Internal Resistor
R
INT
85
95
105
Ω
I
RINT
= 10mA
Bias Resistor
BCR420U
R
B
—
20
—
kΩ
—
BCR421U
—
1.5
—
—
Output Current
BCR420U
I
OUT
9
10
11
mA
V
OUT
= 1.4V; V
EN
= 24V
BCR421U
9
10
11
mA
V
OUT
= 1.4V; V
EN
= 3.3V
Output Current at
R
EXT
= 5.1Ω
BCR420U
I
OUT
—
150
—
mA
V
OUT
> 2.0V; V
EN
= 24V
BCR421U
—
150
—
mA
V
OUT
> 2.0V; V
EN
= 3.3V
Voltage Drop (V
REXT
)
V
DROP
0.85
0.95
1.05
V
I
OUT
= 10mA
Minimum Output Voltage
V
OUT(MIN)
—
1.4
—
V
I
OUT
> 18mA
Output Current Change
vs. Temperature
BCR420U
ΔI
OUT
/I
OUT
—
-0.2
—
%/°C
V
OUT
> 2.0V; V
EN
= 24V
BCR421U
—
-0.2
—
V
OUT
> 2.0V; V
EN
= 3.3V
Output Current Change
vs. Supply Voltage
BCR420U
ΔI
OUT
/I
OUT
—
1
—
%/V
V
OUT
> 2.0V; V
EN
= 24V
BCR421U
—
1
—
V
OUT
> 2.0V; V
EN
= 3.3V