LESHAN RADIO COMPANY, LTD.
Bias Resistor Transistor
PNP Silicon Surface Mount Transistor
with Monolithic Bias Resistor Network
•
•
Applications
Inverter, Interface, Driver
3
LDTA123YLT1G
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
Symbol
V
CC
V
IN
I
O
I
C(Max.)
P
D
Tj
Tstg
Limits
LDTA123YLT1G
−50
−12
to
+5
−100
−100
150
150
−55
to
+150
Unit
V
V
mA
mW
°C
°C
1
BASE
R1
R2
3
COLLECTOR
2
EMITTER
Supply voltage
Input voltage
Output current
Power dissipation
Junction temperature
Storage temperature
DEVICE MARKING AND RESISTOR VALUES
Device
LDTA123YLT1G
LDTA123YLT3G
Marking
P8
P8
R1 (K)
2.2
2.2
R2 (K)
10
10
Shipping
3000/Tape & Reel
10000/Tape & Reel
Electrical characteristics
(Ta=25°C)
Parameter
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.
−
−3
−
−
−
33
1.54
3.6
−
Typ.
−
−
−0.1
−
−
−
2.2
4.5
250
Max.
−0.3
−
−0.3
−3.8
−0.5
−
2.86
5.5
−
Unit
V
V
mA
µA
−
kΩ
−
MHz
Conditions
V
CC
=−5V,
I
O
=−100µA
V
O
=−0.3V,
I
O
=−20mA
I
O
/I
I
=−10mA/−0.5mA
V
I
=−5V
V
CC
=−50V,
V
I
=0V
V
O
=−5V,
I
O
=−10mA
−
−
V
CE
=−10V,
I
E
=5mA,
f=100MHz
Input voltage
Output voltage
Input current
Output current
DC current gain
Input resistance
Resistance ratio
Transition frequency
∗
Characteristics of built-in transistor
1/3
LESHAN RADIO COMPANY, LTD.
LDTA123YLT1G
Electrical characteristic curves
−100
−50
V
O
=−0.3V
−
10m
−
5m
OUTPUT CURRENT : I
O
(A)
V
CC
=
−
5V
−
2m
−
1m
−
500µ
−
200µ
−
100µ
−
50µ
−
20µ
−
10µ
−
5µ
−
2µ
−
1µ
Ta=100°C
25°C
−40°C
INPUT VOLTAGE : V
I(on)
(V)
−20
−10
−5
−2
−1
Ta=−40°C
25°C
100°C
−500m
−200m
−100m
−100µ
−1m
−10m
−100m
0
−
0.5
−
1.0
−
1.5
−
2.0
−
2.5
−
3.0
INPUT VOLTAGE : V
I(off)
(V)
OUTPUT CURRENT : I
O
(A)
Fig.1
Input voltage vs. output current
(ON characteristics)
Fig.2 Output current vs. input voltage
(OFF characteristics)
1k
500
V
O
=−5V
−1
−500m
I
O
/I
I
=20
DC CURRENT GAIN : G
I
200
100
50
20
10
5
2
1
−100µ
−1m
−10m
−100m
OUTPUT VOLTAGE : V
O(on)
(V)
−200m
−100m
−50m
−20m
−10m
−5m
−2m
−1m
−100µ
−1m
−10m
−100m
Ta=100°C
25°C
−40°C
Ta=100°C
25°C
−40°C
OUTPUT CURRENT : I
O
(A)
3/4
OUTPUT CURRENT : I
O
(A)
Fig.3 DC current gain vs. output
current
Fig.4 Output voltage vs. output
current
2/3
LESHAN RADIO COMPANY, LTD.
LDTA123YLT1G
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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