LESHAN RADIO COMPANY, LTD.
P9–1/2
• 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 (with built-in resistors)
•Equivalent circuit
DTA144EKA
• Elecrical characteristics(Ta =25°C)
Parameter symbol Min. Typ. Max. Unit Conditions
Input voltage V I(off) — — –0.5 VV CC= – 5V, I O= –100µA
V I(on) –3.0 — — V O= – 0.3V, I O= –2mA
Output Voltage V O(on) — –0.1 –0.3 V I O / I I = –10mA / –0.5mA
Input current I I— — –0.18 mA V I = – 5V
Output current I O(off) — — –0.5 µAV
CC=– 50V, V I= 0 V
DC current gain G I68 — — — V O= – 5V, I O= – 5mA
Input resistance R 132.9 47 61.1 KΩ —
Resistance ratio R 2 / R 10.8 1 1.2 — —
Transition frequency f T— 250 — MHz V CE= –10V,I E= 5 mA,f=100MHz*
*Transition frequency of the device
• Absolute maximum ratings(Ta =25 °C)
Parameter symbol limits unit
Supply voltage V cc – 50 V
Input voltage V IN –40~+10 V
Output current I O–30 mA
I C(Max.) –100
Power dissipation P d200 mW
Junction temperature T j150 °C
Storage temperature T stg –55~+150 °C
Digital transistors (built-in resistors)
OUT
GND(+)
OUT
R1
R2
GND(+)
IN
IN
2.9 + 0.2
1.9+ 0.2
0.95+ 0.95
(1) (2)
(3)
+ 0.2
1.6 - 0.1
2.8+ 0.2
+ 0.1
0.4 - 0.05
+ 0.1
0.15 - 0.06
+ 0.2
1.1 - 0.1
0.8 + 0.1
0 ~ 0.1
0.3 ~ 0.6
(1) GND
(2) IN
(3) OUT
All terminals have same dimensions
EIAJ: SC— 59
LESHAN RADIO COMPANY, LTD.
P9–2/2
ELECTRICAL CHARACTERISTIC CURVES
DTA144EKA
INPUT VOLTAGE: V I(on) ( V )
-100
-50
-20
-10
-5
-2
-1
-0.5
-0.2
-0.1-100µ-200µ-500µ-1m -2m -5m -10m -20m -50m -100m
OUTPUT CURRENT: I O (A)
Figure 1. Input voltage vs.output current
(ON characteristics)
T
A
= –40°C
25°C
100°C
V
O
= – 0.3V
OUTPUT CURRENT: I O ( A )
-10m
-5m
-2m
-1m
-500µ
-200µ
-100µ
-50µ
-20µ
-10µ
-5µ
-2µ
-1µ0 –0.5 –1.0 –1.5 –2.0 –2.5 –3.0
INPUT VOLTAGE: V I(ON) (V)
Figure 2. Output current vs.input voltage
(OFF characteristics)
T
A
= 100°C
25°C
–40°C
V
CC
= – 5 V
DC CURRENT GAIN: G I
1K
500
200
100
50
20
10
5
2
1-100µ-200µ-500µ-1m -2m -5m -10m -20m -50m -100m
OUTPUT CURRENT: I O (A)
Figure 3. DC current gain vs.output current
V
O
= – 5 V
T
A
= 100°C
25°C
–40°C
OUTPUT VOLTAGE: V O(on) ( V )
-1.0
-0.5
-0.2
-0.1
-0.05
-0.02
-0.01
-.005
-.002
-.001-100µ-200µ-500µ-1m -2m -5m -10m -20m -50m -100m
OUTPUT CURRENT: I O (A)
Figure 4. Output voltage vs.output current
I
O
/ I
I
= 20
T
A
= 100°C
25°C
–40°C