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| UMF21N Datasheet, PDF (2/2 Pages) Rohm – Power management (dual transistors) | |||
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Product specification
TR1 ELECTRICAL CHARACTERISTICS (Ta=25â unless otherwise specified)
Parameter
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cut-off current
Emitter cut-off current
DC current gain
Collector-emitter saturation voltage
Transition frequency
Collector output capacitance
Symbol
V(BR)CBO
V(BR)CEO
V(BR)EBO
ICBO
IEBO
hFE
VCE(sat)
fT
Cob
Test conditions
IC=-10μA, IE=0
IC=-1mA, IB=0
IE=-10μA, IC=0
VCB= -15 V, IE=0
VEB=- 6V, IC=0
VCE=-2V, IC=-10mA
IC=-200mA,IB=-10mA
VCE=-2V,IC=-10mA, f=100MHz
VCB=-10V,IE=0,f=1MHz
Min
-15
-12
-6
270
Typ
260
6.5
Max
-0.1
-0.1
680
-0.25
Unit
V
V
V
μA
μA
V
MHz
pF
DTR2 Electrical Characteristics (Ta=25 â)
Parameter
Symbol Min.
VI(off)
Input voltage
VI(on)
3
Output voltage
VO(on)
Input current
II
Output current
IO(off)
DC current gain
GI
30
Input resistance
R1
7
Resistance ratio
R2/R1
0.8
Transition frequency
fT
Typ
Max.
0.5
0.3
0.88
0.5
10
13
1
1.2
250
Unit
V
V
mA
μA
Kâ¦
MHz
Conditions
VCC=5V ,IO=100μA
VO=0.3V ,IO=10 mA
IO/II=10mA/0.5mA
VI=5V
VCC=50V, VI=0
VO=5V ,IO=5mA
VCE=10V ,IE=-5mA,f=100MHz
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