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PDF PJ431B Data sheet ( Hoja de datos )
| Número de pieza | PJ431B | |
| Descripción | (PJ431x) Programmable Precision References | |
| Fabricantes | Promax-Johnton | |
| Logotipo |  |
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PJ431/PJ431A/PJ431B
Programmable Precision References
The PJ431, A, B integrated circuits are three-terminal
programmable shunt regulator diodes. These monolithic
IC voltage references operate as a low temperature coefficient
zener which is programmable from Vref to 36 volts with two
external resistors. These devices exhibit a wide operating
current range of 1.0 to 100mA with a typical dynamic
impedance of 0.22Ω. The characteristics of these
references make them excellent replacements for zener
FEATURES
• Programmable Output Voltage to 36 Volts
• Voltage Reference Tolerance:
PJ431A : ±0.5%, Typ@25°C
PJ431 : ±1%, Typ@25°C
PJ431B : ±2%, Typ@25°C
• Low Dynamic Output Impedance, 0.22 Ω Typical
• Sink Current Capability of 1.0 to 100 mA
• Equivalent Full-Range Temperature Coefficient of 50
ppm/ ℃Typical
• Temperature Compensated for Operation over Full Rated
Operating Temperature Range
• Low Output Noise Voltage
BLOCK DIAGRAM
diodes in many applications such as digital voltmeters, power
supplies , and op amp circuitry. The 2.5 volt reference makes
it convenient to obtain a stable reference from 5.0 volt logic
supplies, and since The PJ431, A, B operates as a shunt
regulator, it can be used as either a positive or negative tage
reference.
TO-92
SOT-89
Pin: 1. Reference
2. Anode
3. Cathode
SOT-23
Pin: 1. Reference
2. Cathode
3. Anode
Pin: 1. Reference
2. Anode
3. Cathode
(Heatsink surface
connected to Pin 2)
SOP-8
Pin: 1. Cathode
2. Anode
3. Anode
4. N.C.
5. N.C.
6. Anode
7. Anode
8. Reference
SOP-8 is an internally modified SOP-8 Package. Pins 2,3,6
and 7 are electrically common to the die attach flag. This
internal lead frame modification decreases package thermal
resistance and increases power dissipation capability when
appropriately mounted on a printed on a printed circuit board.
SOP-8 conforms to all external dimensions of the standard
SOP-8 Package.
CIRCUIT SCHEMATIC
QRDERING INFORMATION
Device
PJ431/ A/ B CT
PJ431/ A/ B CS
PJ431/ A/ B CY
PJ431/ A/ B CX
Operating Temperature
(Ambient)
- 20℃~ +85℃
Package
TO-92
SOP-8
SOT-89
SOT-23
1-11 2003/01 rev.A
1 page  
www.DataSheet4U.com
PJ431/PJ431A/PJ431B
Programmable Precision References
FIGURE 4-CATHODE CURRENT versus CATHODE
VOLTAGE
FIGURE 5-CATHODE CURRENT versus CATHODE
VOLTAGE
FIGURE 6-REFERENCE INPUT VOLTAGE versus
AMBIENT TEMPERATURE
FIGURE 7-REFERENCE INPUT CURRENT versus
AMBIENT TEMPERATURE
FIGURE 8-CHANGE IN REFERENCE INPUT
VOLTAGE versus CATHODE VOLTAGE
FIGURE 9 –OFF.STATE CATHODE CURRENT versus
AMBIENT TEMPERATURE
5-11 2003/01 rev.A
5 Page 
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PJ431/PJ431A/PJ431B
Programmable Precision References
SOP-8 Mechanical drawing
DIM
A
B
C
D
F
G
K
M
P
R
SOP-8 DIMENSION
MILLIMETERS
MIN MAX
4.80 5.00
3.80 4.00
1.35 1.75
0.35 0.49
0.40 1.25
1.27BSC
0.10 0.25
0° 7°
5.80 6.20
0.25 0.50
INCHES
MIN
MAX
0.189
0.196
0.150
0.157
0.054
0.068
0.014
0.019
0.016
0.049
0.05BSC
0.004
0.009
0° 7°
0.229
0.244
0.010
0.019
SOT-89 Mechanical drawing
DIM
A
B
C
D
E
F
G
H
I
J
SOT-89 Dimension
MILLIMETERS
MIN MAX
4.4 4.6
1.5 1.7
2.30 2.60
0.40 0.52
1.50 1.50
3.00 3.00
0.89 1.20
4.05 4.25
1.4 1.6
0.35 0.44
INCHES
MIN MAX
0.173 0.181
0.059 0.070
0.090 0.102
0.016 0.020
0.059 0.059
0.118 0.118
0.035 0.047
0.159 0.167
0.055 0.063
0.014 0.017
11-11
2003/01 rev.A
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet PJ431B.PDF ] | |
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| PJ431B | (PJ431x) Programmable Precision References | Promax-Johnton |
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