BCR421UW6Q Datasheet, PDF (3/11 Pages) Diodes Incorporated – Linear LED Constant Current Regulator in SOT26

BCR421UW6Q
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Collector-Emitter Breakdown Voltage
Enable Current
DC Current Gain
Internal Resistor
Bias Resistor
Output Current
Symbol
Min
BVCEO
40
IEN
—
hFE
200
RINT
85
RB
—
IOUT
9
Typ
Max
—
—
1.2
—
350
500
95
105
1.5
—
10
11
Output Current at REXT = 5.1Ω
IOUT
—
150
—
Voltage Drop (VREXT)
Minimum Output Voltage
VDROP
VOUT(MIN)
0.85
—
0.95
1.4
1.05
—
Output Current Change vs. Temperature ΔI_OUT/I_OUT
—
-0.2
—
Output Current Change vs.
Supply Voltage
ΔIOUT/IOUT
—
1
—
Unit
V
mA
—
Ω
kΩ
Test Condition
IC = 1mA
VEN = 3.3V
IC = 50mA; VCE = 1V
IRINT = 10mA
—
mA V_OUT = 1.4V; V_EN = 3.3V
mA V_OUT > 2.0V; V_EN = 3.3V
V I_OUT = 10mA
V I_OUT > 18mA
%/°C V_OUT > 2.0V; V_EN = 3.3V
%/V V_OUT > 2.0V; V_EN = 3.3V
BCR421UW6Q
Document number: DS38302 Rev. 1 - 2
3 of 11
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October 2015
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