LM4431M3X-2.5 National Semiconductor, LM4431M3X-2.5 Datasheet

no-image

LM4431M3X-2.5

Manufacturer Part Number
LM4431M3X-2.5
Description
IC,VOLT REFERENCE,FIXED,2.5V,BIPOLAR,TO-236,3PIN,PLASTIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LM4431M3X-2.5

Rohs Compliant
NO

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM4431M3X-2.5
Manufacturer:
NSC
Quantity:
175
Part Number:
LM4431M3X-2.5
Manufacturer:
NS
Quantity:
5 321
Part Number:
LM4431M3X-2.5
Manufacturer:
NS
Quantity:
280
Part Number:
LM4431M3X-2.5
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
LM4431M3X-2.5/NOPB
Manufacturer:
NSC
Quantity:
10 280
© 1998 National Semiconductor Corporation
LM4431
Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4431 voltage ref-
erence is available in the sub-miniature (3 mm x 1.3 mm)
SOT-23 surface-mount package. The LM4431’s advanced
design eliminates the need for an external stabilizing capaci-
tor while ensuring stability with any capacitive load, thus
making the LM4431 easy to use. The operating current
range is 100 µA to 15 mA.
The LM4431 utilizes fuse and zener-zap reverse breakdown
voltage trim during wafer sort to ensure that the parts have
an accuracy of better than
ence temperature drift curvature correction and low dynamic
impedance ensure stable reverse breakdown voltage accu-
racy over a wide range of operating temperatures and cur-
rents.
Features
n Small package: SOT-23
n No output capacitor required
Connection Diagram
* This pin must be left floating or connected to pin 2.
SOT-23 Package Marking Information
Only three fields of marking are possible on the SOT-23’s small surface. The following table gives the meaning of the three
fields.
Part Marking
S2E
±
2.0% at 25˚C. Bandgap refer-
DS011374
First Field:
Second Field:
Third Field:
S = Reference
2 = 2.500V Voltage Option
E = Initial Reverse Breakdown Voltage Tolerance of
(JEDEC Registration TO-236AB)
See NS Package Number M03B
Order Number LM4431M3-2.5
SOT-23
Top View
DS011374-1
n Tolerates capacitive loads
n Fixed reverse breakdown voltage of 2.50V
Key Specifications
n Output voltage tolerance 25˚C:
n Low output noise (10 Hz to 10 kHz): 35 µV
n Wide operating current range: 100 µA to 15 mA
n Commercial temperature range: 0˚C to +70˚C
n Low temperature coefficient: 30 ppm/˚C (typ)
Applications
n Portable, Battery-Powered Equipment
n Data Acquisition Systems
n Instrumentation
n Process Control
n Energy Management
n Product Testing
n Power Supplies
Field Definition
±
2.0%
±
2.0% (max)
www.national.com
rms
(typ)
July 1998

Related parts for LM4431M3X-2.5

LM4431M3X-2.5 Summary of contents

Page 1

... S2E First Field Reference Second Field 2.500V Voltage Option Third Field Initial Reverse Breakdown Voltage Tolerance of © 1998 National Semiconductor Corporation DS011374 n Tolerates capacitive loads n Fixed reverse breakdown voltage of 2.50V Key Specifications n Output voltage tolerance 25˚C: n Low output noise ( kHz): 35 µV n Wide operating current range: 100 µ ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Reverse Current Forward Current = 25˚C) (Note 2) Power Dissipation ( Package Storage Temperature Lead Temperature M3 Package Vapor phase (60 seconds) Infrared (15 seconds) LM4431-2.5 Electrical Characteristics ...

Page 3

Typical Performance Characteristics Temperature Drift for Different Average Temperature Coefficient Reverse Characteristics and Minimum Operating Current Start-Up Characteristics Output Impedance vs Frequency DS011374-2 Noise Voltage DS011374-4 LM4431-2.5 DS011374-6 3 DS011374-3 DS011374-5 = 30k R S DS011374-7 www.national.com ...

Page 4

Functional Block Diagram Applications Information The LM4431 is a micro-power curvature-corrected 2.5V bandgap shunt voltage reference. For space critical applica- tions, the LM4431 is available in the sub-miniature SOT-23 surface-mount package. The LM4431 has been designed for stable operation without ...

Page 5

Typical Applications (Continued) FIGURE 2. Bounded amplifier reduces saturation-induced delays and can prevent succeeding stage damage. Nominal clamping voltage is FIGURE 3. Protecting Op Amp input. The bounding voltage is (LM4431’s reverse breakdown voltage + 3 diode V DS011374-10 ± ...

Page 6

Typical Applications (Continued) FIGURE 5. Precision 1 µ Current Sources www.national.com FIGURE 4. Programmable Current Source DS011374-13 6 DS011374-12 DS011374-14 ...

Page 7

7 ...

Page 8

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

Related keywords