LESHAN RADIO COMPANY, LTD.
Bias Resistor Transistor
PNP Silicon Surface Mount Transistor
with Monolithic Bias Resistor Network
•
•
Applications
Inverter, Interface, Driver
3
LDTA144VLT1G
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 thin-film 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 the device design easy.
We declare that the material of product compliance with
RoHS requirements.
1
2
SOT-23
•
Absolute maximum ratings
(Ta=25°C)
Parameter
Supply voltage
Input voltage
Output current
Power dissipation
Junction temperature
Storage temperature
Symbol
V
CC
V
I
I
O
I
C(Max.)
Pd
Tj
Tstg
Limits
−50
−40
to
+15
−30
−100
200
150
−55
to
+150
Unit
V
V
mA
mW
°C
°C
1
BASE
R1
R2
3
COLLECTOR
2
EMITTER
DEVICE MARKING AND RESISTOR VALUES
Device
LDTA144VLT1G
LDTA144VLT3G
Marking
L9
L9
R1 (K)
47
47
R2 (K)
10
10
Shipping
3000/Tape & Reel
8000/Tape & Reel
Electrical characteristics
(Ta=25°C)
Parameter
Input voltage
Output voltage
Input current
Output current
DC current gain
Input resistance
Resistance ratio
Transition frequency
∗
Transition
frequency of the device.
Symbol
V
I(off)
V
I(on)
V
O(on)
I
I
I
O(off)
G
I
R
1
R
2
/R
1
f
T
Min.
−
−6
−
−
−
33
32.9
0.17
−
Typ.
−
−
−0.1
−
−
−
47
0.21
250
Max.
−1
−
−0.3
−0.16
−0.5
−
61.1
0.26
−
Unit
V
V
mA
µA
−
kΩ
−
MHz
Conditions
V
CC
=
−5V
, I
O
=
−100µA
V
O
=
−0.3V
, I
O
=
−2mA
I
O
=
−10mA
, I
I
=
−0.5mA
V
I
=
−5V
V
CC
=
−50V
, V
I
=0V
I
O
=
−5mA
, V
O
=
−5V
−
−
V
CE
=
−10V
, I
E
=5mA , f=100MHz
∗
1/3
LESHAN RADIO COMPANY, LTD.
LDTA144VLT1G
Electrical characteristic curves
−100
−50
Ta
=25°C
V
O
= −0.3V
OUTPUT CURRENT : I
O
(A)
−10m
−5m
−2m
−1m
−500µ
−200µ
−100µ
−50µ
−20µ
−10µ
−5µ
−2µ
Ta
=25°C
V
CC
= −5V
INPUT VOLTAGE : V
I(on)
(V)
−20
−10
−5
−2
−1
−500m
−200m
−100m
−100µ −200µ −500µ −1m −2m
−5m −10m −20m −50m −100m
−1µ
−1.5
−2
−2.5
−3
−3.5
−4.0
−4.5
OUTPUT CURRENT : I
O
(A)
INPUT VOLTAGE : V
I(off)
(V)
Fig.1 Input voltage vs. Output current
(ON characteristics)
1000
500
Fig.2 Output current vs. Input voltage
(OFF characteristics)
−1
OUTPUT VOLTAGE : V
O(on)
(V)
Ta
=25°C
V
O
= −5V
−500m
−200m
−100m
−50m
−20m
−10m
−5m
−2m
Ta
=25°C
I
O
/I
I
=20
DC CURRENT GAIN : G
I
200
100
50
20
10
5
2
1
−100µ −200µ −500µ −1m −2m
−5m −10m −20m −50m −100m
−1m
−100µ −200µ −500µ −1m −2m
−5m −10m −20m −50m −100m
OUTPUT CURRENT : I
O
(A)
OUTPUT CURRENT : I
O
(A)
Fig.3 DC current gain vs. Output current
characteristics
Fig.4 Output voltage vs. Output current
characteristics
2/3
LESHAN RADIO COMPANY, LTD.
LDTA144VLT1G
SOT-23
NOTES:
A
L
3
1
V
G
2
B S
DIM
A
B
C
D
G
H
J
J
K
L
S
V
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M,1982
2. CONTROLLING DIMENSION: INCH.
INCHES
MIN
MAX
0.1102
0.1197
0.0472
0.0551
0.0350
0.0440
0.0150
0.0200
0.0701
0.0807
0.0005
0.0040
0.0034
0.0140
0.0350
0.0830
0.0177
0.0070
0.0285
0.0401
0.1039
0.0236
MILLIMETERS
MIN
MAX
2.80
3.04
1.20
1.40
0.89
1.11
0.37
0.50
1.78
2.04
0.013
0.100
0.085
0.35
0.89
2.10
0.45
0.177
0.69
1.02
2.64
0.60
C
D
H
K
0.037
0.95
0.037
0.95
0.079
2.0
0.035
0.9
0.031
0.8
inches
mm
3/3
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