Bias Resistor Transistor
Description
LESHAN RADIO COMPANY, LTD.
Bias Resistor Transistor
NPN Silicon Surface Mount Transistor with Monolithic Bias Resistor Network
LDTC143XWT1G
• Applications
Inverter, Interface, Driver
• 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.
zAbsolute maximum ratings (Ta=25°C)
Parameter
Supply voltage Input voltage Output current Power dissipation Junction temperature Storage temperature
Symbol
VCC VIN IC PD Tj Tstg
Limits
50 − 7 to +20
100 200 150 −55 to +150
Unit
V V mA mW C C
3
1 2
SC-70
1 BASE
R1 R2
3 COLLECTOR
2 EMITTER
DEVICE MARKING AND RESISTOR VALUES
Device
Marking R1 (K) R2 (K)
Shipping
LDTC143XWT1G
M1
4.
7 10 3000/Tape & Reel
LDTC143XWT3G M1
4.
7 10 10000/Tape & Reel
zElectrical characteristics (Ta=25°C)
Parameter
Symbol
Input voltage
VI(off) VI(on)
Output voltage
VO(on)
Input current
II
Output current
IO(off)
DC current gain
GI
Input resistance
R1
Resistance ratio
R2/R1
Transition frequency
fT ∗
∗ Characteristics of built-in transistor
Min.
− 2.
5 − − − 30
3.
29 1.
7 −
Typ.
− − 0.
1 − − − 4.
7 2.
1
250
Max.
0.
3 − 0.
3 1.
8 0.
5 − 6.
11 2.
6 −
Unit
V
V mA µA − kΩ − MHz
Conditions VCC=5V, IO=100µA VO=0.
3V, IO=20mA IO/II=10mA/0.
5mA VI=5V VCC=50V, VI=0V VO=5V, IO=10mA
− − VCE=10V, IE=−5mA, f=100MHz
1/3
LESHAN RADIO COMPANY, LTD.
LDTC143XWT1G
INPUT VOLTAGE : VI(on) (V)
zElectrical characteristic curves
100 VO=0.
3V 50
20 10 5 Ta=−40°C
25°C 2 100°C
1 500m
200m 100m
100µ 200µ 500µ 1m 2m 5m 10m 20m 50m 100m
OUTPUT CURRENT : IO (A)
Fig.
1 Input voltage vs.
output current (ON ...
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