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PDF SPX431B Data sheet ( Hoja de datos )
| Número de pieza | SPX431B | |
| Descripción | (SPX431A/B/C) Precision Adjustable Shunt Regulator | |
| Fabricantes | Sipex Corporation | |
| Logotipo |  |
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SPX431A,B,C
Precision Adjustable Shunt Regulator
FEATURES
• Trimmed Bandgap: 0.5%, 1% and 2%
• Wide Operating Current: 1mA to 150mA
• Extended Temperature Range:
0°C to 105°C
• Low Temperature Coefficient: 30 ppm/°C
• Improved Replacement in Performance
for TL431
• Low Cost Solution
• Available in Lead Free, RoHS compliant
packaging: SOIC, SOT-89, SOT-23-3,
SOT-23-5, and TO-92
APPLICATIONS
• Battery Operated Equipment
• Adjustable Supplies
• Switching Power Supplies
• Error Amplifiers
• Single Supply Amplifier
• Monitors/VCRs/TVs
• Personal Computers
DESCRIPTION
The SPX431 is a three-terminal adjustable shunt voltage regulator providing a highly accurate
bandgap reference. The SPX431 acts as an open-loop error amplifier with a 2.5V temperature
compensation reference. The SPX431 has thermal stability, wide operating current of 150mA
and broad temperature range of 0°C to 150°C, making it suitable for a variety of applications
which require a low-cost, high performance solution. SPX431A tolerance of 0.5% is proven
to be sufficient to overcome all other errors in the system to virtually eliminate the need for
trimming in the power supply manufacturer's assembly line and contribute a significant cost
savings. The output voltage may be adjusted to any value between VREF and 36 volts with
two external resistors. The SPX431 is available in SOIC-8, SOT-23-3, SOT-23-5, SOT89,
and TO-92 packages.
typical applications circuit
Cathode (K)
Reference
(R)
Rev F: Nov 21-06
+
-
2.5V
Anode (A)
SPX431A,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
1 page  
Typical Performance CHARACTERISTICS (continued)
0.150
0.125
0.100
VKA = VREF
IK = 1 to 100mA
f≤1kHz
0.075
0.050
0.025
0.0
-60
-30 0 30 60 90
TA Free Air Temperature
120
Low Frequency Dynamic Output Impedance vs.
Tambient
REF LEVEL
60.000dB
0.0deg
60dB
/DIV
10.000dB
45.000deg
50dB
40dB
30dB
20dB
10dB
0dB
-10dB
-20dB
-30dB
-40dB
10
100
START 10.000Hz
1K
10K
MARKER 19 422611.000Hz
MAG (A/R)
-0.125dB
MARKER 19 422611.000Hz
PHASE (A/R) 46.717deg
PHASE
GAIN
100K 1M 10M
STOP 50 000 000.000Hz
215°
180°
135°
90°
45°
0°
-45°
-90°
-135°
-180°
-215°
Small Signal Gain and Phase vs. Frequency; Ik =
10mA, Ta = 25°C
9µF 15kΩ
IK
VIN 8.25kΩ
VOUT
230Ω
GND
VIN
VOUT
Test Circuit for Gain and Phase Frequency Re-
sponse
VIN
250Ω
fp = 100kHz
50Ω
VOUT
IK
Test Circuit for Pulse Response
GND
Fz = 100kHz, Ik = 10mA, Ta = 25°C
100
90
A: VKA = VREF
B: VKA= 5V at IK=10mA
80
C: VKA=10V at IK=10mA
D: VKA=15V at IK=10mA
70
60
C
50
40
STABLE
A
30
STABLE
20
10
0
100
TA = 25°C
B
D
101 102 103 104 105 106
CL Load Capacitance (pF)
107
Stability Boundry Conditions
Rev F: Nov 21-06
SPX431A,B,C Precision Adjustable Shunt Regulator
© 2006 Sipex Corporation
5 Page 
PACKAGE: 3 PIN TO-92
Rev F: Nov 21-06
SPX431A,B,C Precision Adjustable Shunt Regulator
11
© 2006 Sipex Corporation
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SPX431B.PDF ] | |
Hoja de datos destacado
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| SPX431A | (SPX431A/B/C) Precision Adjustable Shunt Regulator | Sipex Corporation |
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