ROHM DTD143EK Technical data
500mA / 50V Digital transistors
(with built-in resistors)
DTD143EK
Applications Dimensions (Unit : mm)
Inverter, Interface, Driver
DTD143EK
Features
1) Built-in bias resistors enable the configuration of an inverter
circuit without connecting external input resistors (see
equivalent circuit).
2) The bias resistors consist of thin film resistors with complete
isolation to allow negative biasing of the input. They also have
the advantage of almost completely eliminating parasitic
effects.
ROHM : SMT3
EIAJ : SC-59
3) Only the on / off conditions need to be set for operation,
making the device design easy.
Structure
NPN epitaxial planar silicon transistor
(Resistor built-in type)
Packaging specifications Inner circuit
SMT3
Taping
T146
3000
R
IN
1
R
2
Part No.
DTD143EK
Package
Packaging type
Code
Basic ordering unit (pieces)
IN
Absolute maximum ratings (Ta=25C)
Parameter Symbol
Supply voltage
Input voltage
Output current
Power dissipation
Junction temperature
Storage temperature
V
CC
V
C
I
P
Tj
Tstg
IN
D
Limits
DTD143EK
50
−10 to +30
500
200
150
−55 to +150
Unit
V
V
mA
mW
°C
°C
R1=R2=4.7kΩ
2.9
(3)
(2)
0.95 0.95
1.9
Each lead has same dimensions
Abbreviated symbol : F23
OUT
GND
OUT
GND
1.1
0.4
(1)
0.8
1.6
2.8
0.15
0.3Min.
(1) GND
(2) IN
(3) OUT
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2009 ROHM Co., Ltd. All rights reserved.
2009.06 - Rev.C
Electrical characteristics (Ta=25C)
Parameter Symbol
Input voltage
Output voltage
V
V
V
Input current
Output current
I
O (off)
DC current gain
Input resistance
Resistance ratio
R2 / R
Transition frequency
Characteristics of built-in transistor
∗
Electrical characteristic curves
100
50
20
(V)
10
I (on)
500m
INPUT VOLTAGE : V
200m
100m
Ta= −40˚C
5
2
1
500μ 1m 2m 5m 10m 20m 50m 100m 200m 500m
25˚C
100˚C
OUTPUT CURRENT : I
O
(A)
VO=0.3V
Fig.1 Input voltage vs. output current
(ON characteristics)
1
500m
(V)
200m
O (on)
OUTPUT VOLTAGE : V
Ta=100˚C
100m
50m
20m
10m
5m
2m
1m
500μ 1m 2m 5m 10m 20m 50m 500m100m 200m
25˚C
−40˚C
OUTPUT CURRENT : I
O
lO / lI=20
(A)
Fig.4 Output voltage vs. output current
I (off)
I (on)
O (on)
I
I
G
R
1
f
T
Min.
I
3.29
1
∗
Typ. Max. Unit Conditions
CC
=5V, IO=100μA
V
O
=0.3V, IO=20mA
V
O
/ II=50mA / 2.5mA
I
V
I
=5V
CC
=50V, VI=0V
V
O
=5V, IO=50mA
V
V
CE
=10V, IE= −50mA, f=100MHz
I (off)
3
47
0.8
−
−
0.5
−
−
0.1
0.3
−
−
1.8
−
−
0.5
−
4.7
6.11
1
1.2
−
200
10m
5m
2m
1m
(A)
500μ
200μ
100μ
50μ
20μ
10μ
OUTPUT CURRENT : Io
5μ
2μ
1μ
V
−
V
mA
μA
−
−
kΩ
−−
MHz
−
Ta=100˚C
25˚C
−40˚C
0.5 1.0 1.5 2.0 2.5 3.0 0
INPUT VOLTAGE : V
Fig.2 Output current vs. input voltage
(OFF characteristics)
VCC=5V
(V)
Data Sheet DTD143EK
−
1k
500
I
200
100
50
20
10
5
DC CURRENT GAIN : G
2
1
Ta=100˚C
25˚C
−40˚C
1m 2m 5m 10m 100m50m20m 200m 500m500μ
OUTPUT CURRENT : I
VO=5V
O (A)
Fig.3 DC current gain vs. output current
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○
2009 ROHM Co., Ltd. All rights reserved.
2009.06 - Rev.C
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