SPX2431 SIPEX [Sipex Corporation], SPX2431 Datasheet

no-image

SPX2431

Manufacturer Part Number
SPX2431
Description
Precision Adjustable Shunt Regulator
Manufacturer
SIPEX [Sipex Corporation]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SPX2431
Quantity:
3 162
Part Number:
SPX2431AM
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SPX2431AM-L
Manufacturer:
SIPEX
Quantity:
15 000
Part Number:
SPX2431AM-L/TR
Manufacturer:
EXAR
Quantity:
10 000
Part Number:
SPX2431AM-L/TR
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SPX2431AM/TR
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SPX2431AM/TR
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SPX2431AMLTR
Manufacturer:
HITACHI
Quantity:
6 265
Part Number:
SPX2431LS
Manufacturer:
SIPEX
Quantity:
2 327
Part Number:
SPX2431M
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SPX2431M-L-TR
Manufacturer:
SPIEX
Quantity:
20 000
Company:
Part Number:
SPX2431M-L/TR
Quantity:
200 000
The SPX2431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate
bandgap reference. The SPX2431 acts as an open-loop error amplifier with a 2.5V temperature
compensation reference. The SPX2431’s thermal stability, wide operating current (100mA) and
temperature range (0°C to 105°C) makes it suitable for a variety of applications that require a
low cost, high performance solution. SPX2431A tolerance of 0.5% is proven to be sufficient to
overcome all of the 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 V
resistors. In the standard shunt configuration, the combination of a low temperature coefficient,
sharp turn on characteristics, low output impedance, and programmable output voltage makes
this precision reference an excellent error amplifier. The SPX2431 is available in SOT-23-3
package.
Date: 05/25/04
FEATURES
■ Trimmed Bandgap to 0.5% and 1.0%
■ Wide Operating Current 1mA to 100mA
■ Extended Temp. Range: 0°C to 105°C
■ Low Temperature Coefficient 30 ppm/°C
■ Offered in 3 Pin SOT-23 (M)
■ Replacement for TL431, AS2431
■ Low Noise Output
Reference
(R)
®
Precision Adjustable Shunt Regulator
SPX2431 Precision Adjustable Shunt Regulator
2.5V
+
-
1
APPLICATIONS
■ Battery Operating Equipment
■ Adjustable Supplies
■ Switching Power Supplies
■ Error Amplifiers
■ Single Supply Amplifier
■ Monitors / VCRs / TVs
■ Personal Computers
Cathode (K)
Anode (A)
REF
and 20 volts with two external
FUNCTIONAL DIAGRAM
© Copyright 2003 Sipex Corporation
SPX2431
DESCRIPTION

Related parts for SPX2431

SPX2431 Summary of contents

Page 1

... The SPX2431’s thermal stability, wide operating current (100mA) and temperature range (0°C to 105°C) makes it suitable for a variety of applications that require a low cost, high performance solution. SPX2431A tolerance of 0.5% is proven to be sufficient to overcome all of the 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 ...

Page 2

... 0V, 0.04 REF 20V KA 2 ƒ ≤ 1kHz 0. 100mA K SPX2431 Precision Adjustable Shunt Regulator TYPICAL DERATING JA JC 575°C/W 150°C/W 1.7 mW/°C MAX MIN TYP MAX UNITS SPX2431 2.513 2.474 2.500 2.526 2.520 2.460 2 ...

Page 3

... Junction Temperature (°C) 0.0033mV /°C 0.0027% / °C 27ppm/° REF (V ) REF R2 Figure 3. Test Circuit for V > REF SPX2431 Precision Adjustable Shunt Regulator 3 ∆ V (mV) • REF °C = ∆ ∆ REF x 100 ∆ 25°C REF • ...

Page 4

... Figure 8. Reference Input Current VS Ambient Temperature 75°C 30 125° Figure 10. Noise Voltage VS Frequency SPX2431 Precision Adjustable Shunt Regulator REF I = 10mA K - 120 T Ambient Temperature (° 10kΩ ∞ 10mA K -30 ...

Page 5

... OUT GND Figure 16. Stability Boundary Conditions SPX2431 Precision Adjustable Shunt Regulator 5 /DIV MARKER 25 297 698.000 Hz 10.000dB MAG (A/R) -0.025 dB 45.000deg MARKER 25 297 698.000 Hz PHASE (A/R) 93.320 deg 215° 180° PHASE 135° 90° ...

Page 6

... V IN 100 150 Figure 20. Shunt Regulator V I SINK Opto Isolator Q1 Isolated Feedback C2 R1 0.1% Figure 22. Reference Amplifier for Isolated Feedback /R1 REF Off-Line DC-DC Converters SPX2431 Precision Adjustable Shunt Regulator 25° 100mA K 10K 100K 1M 10M f Frecuency (Hz) = 25° OUT R1 ...

Page 7

... Figure 25. Single Supply Comparator with Temperature Compensated Threshold. V Threshold = 2.5V IN Date: 05/25/ 0.1% R2 0.1% V OUT Figure 24. High Current Shunt Regulator V = (1+R1/R2)V OUT * Resistor values are chosen such that the effect negligible . I OUT REF SPX2431 Precision Adjustable Shunt Regulator 7 V OUT R3 Q1 SPX2431 REF © Copyright 2003 Sipex Corporation ...

Page 8

... Date: 05/25 0.95 1.02 - 0.50 - 0.20 2.90 3.04 WITH PLATING - 2.64 1.30 1.40 0.50 0.60 - 8º SPX2431 Precision Adjustable Shunt Regulator 8 PACKAGES: 3 PIN SOT-23 SEE VIEW C VIEW A-A Gauge Plane Seating Plane L Ø L1 VIEW C Seating Plane C SIDE VIEW b c SECTION B-B BASE METAL 3 PIN SOT-23 © Copyright 2004 Sipex Corporation ...

Page 9

... PART NUMBER SPX2431AM ...................... 0.5% ...................... 2.5V ......................... 3 Pin SOT-23 SPX2431AM/TR ................ 0.5% ...................... 2.5V ......................... 3 Pin SOT-23 SPX2431M ........................ 1.0% ...................... 2.5V ......................... 3 Pin SOT-23 SPX2431M/TR .................. 1.0% ...................... 2.5V ......................... 3 Pin SOT-23 /TR = Tape and Reel Pack quantity is 2,500 for SOT-23. Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 22 Linnell Circle Billerica, MA 01821 TEL: (978) 667-8700 FAX: (978) 670-9001 e-mail: sales@sipex ...

Related keywords