ROHM DTA144WUA Technical data

-100mA / -50V Digital transistors

(with built-in resistors)

DTA144WE / DTA144WUA / DTA144WKA

 Applications  Dimensions (Unit : mm)
Inverter, Interface, Driver

 Features

1) Built-in bias resistors enable the configuration of an inverter
circuit without connecting external input resistors.

2) The bias resistors consist of thin-film resistors with complete
isolation to allow positive biasing of the input, and parasitic
effects are almost completely eliminated.

3) Only the on / off conditions need to be set for operation,
making the device design easy.

4) Higher mounting densities can be achieved.

 Structure
PNP epitaxial planar silicon transistor
(Resistor built-in type)

 Packaging specifications

Part No.

DTA144WE

DTA144WUA

DTA144WKA

Package
Packaging type

Code
Basic ordering unit (pieces)

EMT3

Taping

TL

3000

UMT3

Taping

T106
3000

−−

−

−−

SMT3

Taping

T146
3000

−

 Inner circuit

R

1

IN

R

2

OUT

GND(+)

EMT3

(SC-75A)
<SOT-416>

(1) GND

(2) IN

(3) OUT

UMT3

<SC-70>

(1) GND
(2) IN
(3) OUT

SMT3

<SC-59>

(1) GND
(2) IN
(3) OUT

1.6

0.3

(3)

0.8

(2)

0.2

(1)

0.2

0.5

0.5

1.0

Abbreviated symbol : 76

2.0

0.3

(3)

1.25

(1)

(2)

0.65

0.65

1.3

Abbreviated symbol : 76

2.9

0.4

(3)

(2)

0.95 0.95

Abbreviated symbol : 76

(1)

1.9

0.7

0.55

1.6

0.15

0.1Min.

Each lead has same dimensions

0.9

0.7

0.2

2.1

0.15

Each lead has same dimensions

1.6

2.8

0.15

Each lead has same dimensions

0.1Min.

1.1

0.8

0.3Min.

IN

R1=47kΩ, R2=22kΩ

GND(+)

OUT

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2009 ROHM Co., Ltd. All rights reserved.

2009.06 - Rev.C

 Absolute maximum ratings (Ta=25C)

Parameter Symbol

Supply voltage
Input voltage

Output current

Power
dissipation

Junction temperature

Storage temperature

 Electrical characteristics (Ta=25C)

Input voltage

Output voltage

Input current

Output current

DC current

Input resistance

Resistance ratio

Transition frequency

Characteristics of built-in transistor

∗

 Electrical characteristics curves

100

−

50

−

) (V)

20

−

on

(

I

−

10

−

5

2

−

−

1

500m

INPUT VOLTAGE : V

200m

100m

100

−−−−

Fig.1 Input voltage vs. Output current
(ON characteristics)

-1

-500m

-200m

-100m

-50m

-20m

-10m

-5m

OUTPUT VOLTAGE : VO(on) (V)

-2m

-1m

-100

Fig.4 Output voltage vs. Output current

DTA144WE

DTA144WUA / DTA144WKA

Parameter Symbol Min. Typ. Max. Unit Conditions

V

I(off)

V

I(on)

V

O(on)

I

I

I

O(off)

G

R

R

1

2/R1

f

T

I

gain

−

V

O

= 0.3V

Ta= 40°C

μ

OUTPUT CURRENT : I

IO/I

I

=20

μ

OUTPUT CURRENT : I

Ta=25°C

Ta=100°C

1m 10m 100m

O

(A)

Ta=100°C

Ta=25°C

Ta= - 40°C

-1m -10m -100m

O

(A)

V

CC

V

I

I

C(Max.)

I

O

−40 to +10

Pd

Tj

Tstg

−

−55 to +150

−

−4 −−

−

−0.1

−

−

56

32.9

−

−

−

47

Limits

−50

−30

−100

150

200

150

−0.8

−0.3

−0.16

−0.5

−

61.1

V

V

mA

μA

−

kΩ

Unit

V
V

mA

mW

°C

°C

V

CC

=−5V, IO=−100μA

V

O

=−0.3V, IO=−2mA

O

=−10mA, II=−0.5mA

I

I

=−5V

V

CC

=−50V, VI=0V

V

O

=−5mA, VO=5V

I

−

0.37 0.47 0.57 −−

∗

(A)

O

−

−

−

OUTPUT CURRENT : I

250

−

−

10m

−

V

CC

= 5V

5m

−

Ta=100°C

2m

−

−

1m

500

μ

Ta=25°C

200

μ

100

μ

−

50

μ

20

μ

−

−

10

μ

5

μ

−

−

2

μ

−

1

μ

0.5 1 1.5 2 2.5 3 3.5

−−

INPUT VOLTAGE : VI(

Fig.2 Output current vs. Input voltage

MHz

−

off

) (V)

CE

=−10V, IE= 5mA, f=100MHz

V

−

Ta= 40°C

−−−−−

1k

V

O

500

I

200

100

50

20

10

DC CURRENT GAIN : G

5

2

1

100

μ

Fig.3 DC current gain vs. Output current

(OFF characteristics)

Data Sheet DTA144WE / DTA144WUA / DTA144WKA

= 5V

−

−−−−

1m 10m 100m

OUTPUT CURRENT : I

Ta=25°C

Ta=100°C

Ta= 40°C

−

O

(A)

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2009 ROHM Co., Ltd. All rights reserved.

2009.06 - Rev.C