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BCR421UW6 Datasheet(PDF) 3 Page - Diodes Incorporated

Part # BCR421UW6
Description  LINEAR LED CONSTANT CURRENT REGULATOR IN SOT26
Download  13 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

BCR421UW6 Datasheet(HTML) 3 Page - Diodes Incorporated

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BCR420UW6 / BCR421UW6
Document number: DS37667 Rev. 4 - 2
3 of 13
www.diodes.com
June 2016
© Diodes Incorporated
BCR420UW6 / BCR421UW6
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Min
Typ
Max
Unit
Test Condition
Collector-Emitter Breakdown Voltage
BVCEO
40
—
—
V
IC = 1mA
Enable Current
BCR420U
IEN
—
1.2
—
mA
VEN = 24V
BCR421U
—
1.2
—
VEN = 3.3V
DC Current Gain
hFE
200
350
500
—
IC = 50mA; VCE = 1V
Internal Resistor
RINT
85
105
Ω
IRINT = 10mA
Bias Resistor
BCR420U
RB
—
20
—
kΩ
—
BCR421U
—
1.5
—
—
Output Current
BCR420U
IOUT
9
10
11
mA
VOUT = 1.4V; VEN = 24V
BCR421U
9
10
11
mA
VOUT = 1.4V; VEN = 3.3V
Output Current at
REXT = 5.1Ω
BCR420U
IOUT
—
150
—
mA
VOUT > 2.0V; VEN = 24V
BCR421U
—
150
—
mA
VOUT > 2.0V; VEN = 3.3V
Voltage Drop (VREXT)
VDROP
0.85
0.95
1.05
V
IOUT = 10mA
Minimum Output Voltage
VOUT(MIN)
—
1.4
—
V
IOUT > 18mA
Output Current Change
vs. Temperature
BCR420U
ΔIOUT/IOUT
—
-0.2
—
%/°C
VOUT > 2.0V; VEN = 24V
BCR421U
—
-0.2
—
VOUT > 2.0V; VEN = 3.3V
Output Current Change
vs. Supply Voltage
BCR420U
ΔIOUT/IOUT
—
1
—
%/V
VOUT > 2.0V; VEN = 24V
BCR421U
—
1
—
VOUT > 2.0V; VEN = 3.3V


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