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부품번호 | PJ431 기능 |
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기능 | (PJ431x) Programmable Precision References | ||
제조업체 | Promax-Johnton | ||
로고 | |||
전체 11 페이지수
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 0.22Ω. 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
www.DataSheet4U.com
PJ431/PJ431A/PJ431B
Programmable Precision References
ELECTRICAL CHARACTERISTICS ( Ambient temperature at 25℃ unless 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
Ω
4-11 2003/01 rev.A
4페이지 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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부품번호 | 상세설명 및 기능 | 제조사 |
PJ431 | (PJ431x) Programmable Precision References | Promax-Johnton |
PJ431A | (PJ431x) Programmable Precision References | Promax-Johnton |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |