LESHAN RADIO COMPANY, LTD.
P7–1/2
• 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 (Built-in resistors type)
•Equivalent circuit
DTA124EKA
DTA124ECA
• Absolute maximum ratings(Ta=25 °C)
Parameter symbol 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
limits
(DTA124EKA DTA124ECA )
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
2.9 + 0.2
1.9+ 0.2
0.95+ 0.95
(1) (2)
(3)
+ 0.2
1.3 - 0.1
2.4+ 0.2
+ 0.1
0.4 - 0.05
+ 0.1
0.15 - 0.06
+ 0.2
0.95 - 0.1
0.45 + 0.1
0 ~ 0.1
(1) GND
(2) IN
(3) OUT
All terminals have same dimensions
DTA124EKA DTA124ECA
0.2Min
EIAJ: SC— 59 EIAJ: SOT— 23
LESHAN RADIO COMPANY, LTD.
P7–2/2
• Elecrical characteristics(Ta=25°C)
Parameter symbol Min. Typ. Max. Unit Conditions
Input voltage V I(off) — — –0.5 VVCC=– 5V,IO=–100µA
V I(on) –3 — — VO= – 0.2V,IO= –5mA
Output Voltage V O(on) — –0.1 –0.3 V IO/II= –10mA/–0.5mA
Input current I I— — –0.36 mA VI= – 5V
Output current I O(off) — — –0.5 µAV
CC=– 50V,VI= 0 V
DC current gain G I56 — — — VO= – 5V,IO=– 5mA
Input resistance R 115.4 22 28.6 KΩ —
Resistance ratio R 2 / R 10.8 1 1.2 — —
Transition frequency f T— 250 — MHz VCE= –10V,IE= 5 mA,f=100MHz*
*Transition frequency of the device
DTA124EKA DTA124ECA
ELECTRICAL CHARACTERISTIC CURVES
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
-0.5
-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
