
DTA144EEB
Transistors
-100mA / -50V Digital transistors
(with built-in resistors)
DTA144EEB
zApplications zDimensions (Unit : mm)
Inverter, Interface, Driver
zFeatures
1) Built-in bias resistors enable the configuratio n 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.
3) Only the on/off conditions need to be set for
operation, making the device design easy.
zStructure zEquivalent circuit
PNP silicon epitaxial planar transistor type
(Resistor built-in)
zPackaging specifications
EMT3F
TL
3000
Part No.
DTA144EEB
Package
Packaging type Taping
Code
Basic ordering unit (pieces)
zAbsolute maximum ratings (Ta=25°C)
LimitsParameter Symbol
−40
−55
−100 mAIc(max)
−50
to
−30
150
150
to
+10
+150
Supply voltage
Input voltage
Collector current
Output current
Power dissipation
Junction temperature
Range of storage temperature
∗1 Characteristics of built-in transistor
∗2 Each terminal mounted on a recomended land
V
V
Io
P
Tj
Tstg
CC
IN
∗1
∗2
D
EMT3F
(1) IN
(2) GND
(3) OUT
IN
IN
R1=R2=47kΩ
Unit
V
V
mA
mW
°C
°C
1.6
0.26
(3)
0.37
1.6
0.86
(1) (2)
0.37
0.5 0.5
1.0
Abbreviated symbol : 16
R
1
R
2
OUT
GND(+)
OUT
GND(+)
0.7
0.45
0.13
Each lead has same dimensions
0.45
1/2

DTA144EEB
Transistors
zElectrical characteristics (T a=25°C)
Parameter Symbol
V
Input voltage
Output voltage
Input current
Output current
DC current gain
Transition frequency
Input resistance
Resistance ratio
∗ Characteristics of built-in transistor
I(off)
V
I(on)
V
O(on)
I
I
O(off)
G
f
R
R2/R
I
I
∗
T
1
zElectrical characteristic curves
−100
−50
−20
(V)
I(on)
−10
Ta=−40°C
−5
25°C
100°C
−2
−1
−500m
INPUT VOLTAGE : V
−200m
−100m
−100µ−1m −10m −100m−200µ−2m −20m−500µ−5m −50m
OUTPUT CURRENT : I
Fig.1 Input voltage vs. output current
(ON characteristics)
V
O
=−
O
(A)
−1
−500m
(V)
−200m
O(on)
−100m
OUTPUT VOLTAGE : V
Ta=100°C
25°C
−40°C
−50m
−20m
−10m
−5m
−2m
−1m
−100µ−1m −10m −100m−200µ−2m −20m-−500µ−5m −50m
OUTPUT CURRENT : I
Fig.4 Output voltage vs. output
current
lO/lI=20
O
(A)
1
0.3V
Typ. Max. Unit Conditions
Min.
−
−
−
−3.0
−100
−
−
−
−
−
−
68
250
−
47
32.9
1
0.8
−10m
−5m
−2m
(A)
−1m
−500µ
−200µ
−100µ
−50µ
−20µ
−10µ
OUTPUT CURRENT : Io
−5µ
−2µ
−1µ
0 −3.0
−500
−
−300
−0.18
−500
−
−
61.1
1.2
V
CC
=−
5V
Ta=100°C
25°C
−40°C
−0.5 −1.0 −1.5 −2.0 −2.5
INPUT VOLTAGE : V
V
mV
CC
V
V
O
=−0.3V, IO=−2mA
mV
I
O
/ II=−10mA / −0.5mA
mA
V
I
=−5V
nA
V
CC
−
V
O
=−5V, IO=−5mA
V
MHz
CE
kΩ
−−
Fig.2 Output current vs. input voltage
(OFF characteristics)
=−5V, IO=−100µA
=−50V, VI=0V
=−10V, IE=5mA, f=100MHz
−
1k
500
Ta=100°C
I
200
100
50
20
10
5
DC CURRENT GAIN : G
2
1
−100µ−1m −10m −100m−200µ−2m −20m−500µ−5m −50m
I(off)
(V)
Fig.3 DC current gain vs. output
25°C
−40°C
OUTPUT CURRENT : I
current
V
O
(A)
O
=−
5V
2/2

Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level
of reliability and the malfunction of which would directly endanger human life (such as medical
instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers
and other safety devices), please be sure to consult with our sales representative in advance.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact your nearest sales office.
ROHM Customer Support System
www.rohm.com
THE AMERICAS / EUPOPE / ASIA / JAPAN
Contact us : webmaster@ rohm.co. jp
Copyright © 2007 ROHM CO.,LTD.
21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan
TEL : +81-75-311-2121
FAX : +81-75-315-0172
Appendix1-Rev2.0