Document
LESHAN RADIO COMPANY, LTD.
Bias Resistor Transistor
PNP Silicon Surface Mount Transistor with Monolithic Bias Resistor Network
LDTA143ZLT1G
• 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)
3
1 2
SOT-23
1 BASE
R1 R2
3 COLLECTOR
Parameter
Symbol
Limits
Unit
2 EMITTER
Supply voltage Input voltage
Output current
Power dissipation Junction temperature Storage temperature
VCC VI IO IC(Max.) Pd Tj Tstg
−50 −30 to +5
−100 −100 200 150 −55 to +150
V V
mA
mW °C °C
DEVICE MARKING AND RESISTOR VALUES
Device
Marking R1 (K) R2 (K)
Shipping
LDTA143ZLT1G
A6K
4.7 47 3000/Tape & Reel
LDTA143ZLT3G
A6K
4.7 47 10000/Tape & Reel
zElectrical characteristics (Ta=25°C)
Parameter
Input voltage
Output voltage Input current Output current DC current gain Input resistance Resistance ratio Transition frequency
∗ Characteristics of built-in transistor
Symbol VI(off) VI(on) VO(on) II IO(off) GI R1 R2/R1 fT ∗
Min. −
−1.3 − − − 80
3.29 8 −
Typ. − −
−0.1 − − − 4.7 10
250
Max. −0.5
− −0.3 −1.8 −0.5
− 6.11 12
−
Unit
V
V mA µA − kΩ − MHz
Conditions VCC=−5V, IO=−100µA VO=−0.3V, IO=−5mA IO/II=−5mA/−0.25mA VI=−5V VCC=−50V, VI=0V VO=−5V, IO=−10mA
− − VCE=−10V, IE=5mA, f=100MHz
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LESHAN RADIO COMPANY, LTD. LDTA143ZLT1G
zElectrical characteristic curves
INPUT VOLTAGE : VI(on) (V)
−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 characteristics)
OUTPUT CURRENT : Io (A)
−10m −5m VCC=−5V
−2m
−1m −500µ
−200µ
Ta=100°C 25°C
−100µ −40°C
−50µ
−20µ
−10µ −5µ
−2µ −1µ
0 −0.5 −1.0 −1.5 −2.0 −2.5 −3.0
INPUT VOLTAGE : VI(off) (V)
Fig.2 Output current vs. input voltage (OFF characteristics)
DC CURRENT GAIN : GI
1k
500 Ta=100°C 25°C
200 −40°C 100
50
VO=−5V
20 10
5
2
1 −100µ −200µ −500µ −1m −2m −5m −10m −20m −50m−100m
OUTPUT CURRENT : IO (A)
Fig.3 DC current gain vs. output current
OUTPUT VOLTAGE : VO(on) (V)
−1 lO/lI=20
−500m Ta=100°C 25°C
−200m −40°C −100m
−50m
−20m
−10m −5m
−2m −1m −100µ −200µ −500µ −1m −2m −5m −10m −20m −50m −100m
OUTPUT CURRENT : IO (A)
Fig.4 Output voltage vs. output current
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LESHAN RADIO COMPANY, LTD. LDTA143ZLT1G
A L
3 BS
12
VG
C
D
H K
SOT-23
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M,1982
2. CONTROLLING DIMENSION: INCH.
DIM
INCHES
MILLIMETERS
MIN MAX MIN MAX
A 0.1102 0.1197 2.80 3.04
B 0.0472 0.0551 1.20 1.40
C 0.0350 0.0440 0.89 1.11
D 0.0150 0.0200 0.37 0.50
G 0.0701 0.0807 1.78 2.04
H 0.0005 0.0040 0.013 0.100
J 0.0034 0.0070 0.085 0.177
K 0.0140 0.0285 0.35 0.69
J L 0.0350 0.0401 0.89 1.02
S 0.0830 0.1039 2.10 2.64
V 0.0177 0.0236 0.45 0.60
0.037 0.95
0.035 0.9
0.037 0.95
0.079 2.0
0.031 0.8
inches mm
3/3
.