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PJ431 데이터시트 PDF




Promax-Johnton에서 제조한 전자 부품 PJ431은 전자 산업 및 응용 분야에서
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부품번호 PJ431 기능
기능 (PJ431x) Programmable Precision References
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PJ431 데이터시트, 핀배열, 회로
www.DataSheet4U.com
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 0.22. 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 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




PJ431 pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
PJ431/PJ431A/PJ431B
Programmable Precision References
ELECTRICAL CHARACTERISTICS ( Ambient temperature at 25unless otherwise noted )
Characteristic
Reference Input Voltage (Figure 1)
VKA = Vref , IK = 10 mA, TA = +25
TA = Tlow to Thigh (Note 1)
PJ431A
PJ431
PJ431B
Reference Input Voltage Deviation Over
Temperature Range (Figure 1, Note 1,2,4)
VKA = Vref , IK = 10 mA
Ratio of Change in Reference Input Voltage
to Change in Cathode to Anode Voltage
IK = 10 mA (Figure 2),
VKA = 10V to Vref
VKA = 36V to 10V
Reference Input Current (Figure 2)
IK = 10 mA, R1 = 10 k, R2 =
TA = +25
TA = Tlow to Thigh (Note 1)
Reference Input Current Deviation Over
Temperature Range (Figure 2, Note 1,4)
IK = 10 mA, R1 = 10 k, R2 =
Minimum Cathode Current for Regulation
VKA = Vref (Figure 1)
Off-State Cathode Current (Figure 3)
VKA = 36 V, Vref = 0V
Dynamic Impedance (Figure 1, Note 3)
VKA = Vref, IK = 1.0 mA to 100 mA, f 1.0 kHz
Symbol
Vref
Vref
Vref
VKA
Iref
lref
Imin
Ioff
| Zke |
Min
2.4875
2.475
2.45
--
--
--
--
--
--
--
--
--
PJ431
Typ
2.495
2.495
2.495
3.0
- 1.4
- 1.0
0.7
--
0.4
0.5
2.6
0.22
Max
2.5125
2.525
2.55
17
- 2.7
-.2.0
4.0
5.2
1.2
1.0
1000
0.5
Unit
V
mV
mV
µA
µA
mA
nA
4-11 2003/01 rev.A

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PJ431 전자부품, 판매, 대치품
www.DataSheet4U.com
PJ431/PJ431A/PJ431B
Programmable Precision References
FIGURE 16-TEST CIRCUIT FOR CURVE A OF
STABILITY BOUNDARY CONDITIONS
FIGURE 17-TEST CIRCUIT FOR CURVES B.C. AND
D OF STABILITY BOUNDARY CONDITIONS
FIGURE 18-SHUNT REGULATOR
FIGURE 19-HIGH CURRENT SHUNT REGULATOR
FIGURE 20-OUTPUT CONTROL OF A
THREE-TERMINAL FIXED EGULATOR
FIGURE 21-SERIES PASSEGULATOR
7-11 2003/01 rev.A

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