Digital transistors (built-in resistors)
• 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 thinfilm resistors with complete isolation to allow
positive 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 device design
easy.
• Structure
PNP digital transistor (Built-in resistors type)
•Equivalent circuit
DTA124EKA
DTA124ECA
IN
R1
R2
OUT
GND(+)
IN
OUT
GND(+)
2.9 + 0.2
1.9+ 0.2
0.95+0.95
(1)
(2)
2.8+ 0.2
+ 0.2
- 0.1
1.1
-
+ 0.2
0.1
2.9 + 0.2
1.9+ 0.2
0.95+ 0.95
(1)
0 ~ 0.1
(2)
2.4+ 0.2
+ 0.2
- 0.1
0.95
+ 0.2
- 0.1
0.8 + 0.1
0.45 + 0.1
0 ~ 0.1
1.6
(3)
0.3 ~ 0.6
(3)
0.15
+ 0.1
- 0.06
1.3
0.2Min
+ 0.1
- 0.05
0.4
+ 0.1
- 0.05
(1) GND
(2) IN
(3) OUT
0.4
0.15
+ 0.1
- 0.06
(1) GND
(2) IN
(3) OUT
All terminals have same dimensions
All terminals have same dimensions
DTA124EKA
EIAJ: SC— 59
DTA124ECA
EIAJ: SOT— 23
•
Absolute maximum ratings(T
a
=25 °C)
limits
symbol
V
cc
V
IN
I
O
I
C(Max.)
P
d
T
j
T
stg
(DTA124EKA DTA124ECA )
–50
–40~+10
–30
–100
200
150
–55~+150
unit
V
V
mA
mW
°C
°C
Parameter
Supply voltage
Input voltage
Output current
Power dissipation
Junction temperature
Storage temperature
P7–1/2
DTA124EKA DTA124ECA
•
Elecrical characteristics(T =25°C)
a
Parameter
Input voltage
Output Voltage
Input current
Output current
symbol
V
I(off)
Min.
—
–3
—
—
—
56
15.4
0.8
—
Typ.
—
—
–0.1
—
—
—
22
1
250
Max.
–0.5
—
–0.3
–0.36
–0.5
—
28.6
1.2
—
Unit
V
V
mA
Conditions
V
CC
=– 5V,I
O
=–100
µ
A
V
O
= – 0.2V,I
O
= –5mA
I
O
/I
I
= –10mA/–0.5mA
V
I
= – 5V
V
CC
=– 50V,V
I
= 0 V
V
O
= – 5V,I
O
=– 5mA
—
—
V
CE
= –10V,I
E
= 5 mA,f=100MHz*
V
I(on)
V
O(on)
I
I
I
O(off)
µ
A
—
KΩ
—
MHz
DC current gain
G
I
Input resistance
R
1
Resistance ratio
R
2
/ R
1
Transition frequency
f
T
*Transition frequency of the device
ELECTRICAL CHARACTERISTIC CURVES
-100
-50
-10m
-5m
V
O
= – 0.3V
V
CC
=–5V
INPUT VOLTAGE: V
I(on)
( V )
-20
-10
-5
-2
OUTPUT CURRENT: I
O
( A )
-2m
-1m
-500µ
-200µ
-100µ
-50µ
-20µ
-10µ
-5µ
-2µ
-1µ
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
T
A
= 100°C
25°C
–40°C
T
A
= –40°C
25°C
100°C
-1
-0.5
-0.2
-0.1
-100µ-200µ
-500µ -1m
-2m
-5m
-10m -20m
-50m -100m
OUTPUT CURRENT: I
O
(A)
INPUT VOLTAGE: V
I(ON)
(V)
Figure 1. Input voltage vs.output current
(ON characteristics)
Figure 2. Output current vs.input voltage
(OFF characteristics)
-1
1K
500
200
V
O
= – 5 V
-0.5
I
O
/ I
I
= 20
T
A
= 100°C
25°C
–40°C
OUTPUT VOLTAGE: V
O(on)
( V )
T
A
= 100°C
25°C
–40°C
-0.2
DC CURRENT GAIN: G
I
100
50
20
-0.1
-0.05
-0.02
10
5
2
1
-100µ-200µ
-500µ -1m
-2m
-5m
-10m -20m
-50m -100m
-0.01
-.005
-.002
-.001
-100µ-200µ
-500µ -1m
-2m
-5m
-10m -20m
-50m -100m
OUTPUT CURRENT: I
O
(A)
OUTPUT CURRENT: I
O
(A)
Figure 3. DC current gain vs.output current
Figure 4. Output voltage vs.output current
P7–2/2
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