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PDF LM431BCM Data sheet ( Hoja de datos )
| Número de pieza | LM431BCM | |
| Descripción | Programmable Shunt Regulator | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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LM431A/LM431B/LM431C
Programmable Shunt Regulator
www.fairchildsemi.com
Features
• Programmable Output Voltage to 36 Volts
• Low Dynamic Output Impedance 0.20 Typical
• Sink Current Capability of 1.0 to 100mA
• Equivalent Full-Range Temperature Coefficient of
50ppm/°C Typical
• Temperature Compensated for Operation Over Full Rated
Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response
Description
The LM431A/LM431B/LM431C are three terminal output
adjustable regulators with thermal stability over operating
temperature range. The output voltage can be set any value
between VREF (approximately 2.5 volts) and 36 volts with
two external resistors. These devices have a typical dynamic
output impedance of 0.2Ω Active output circuit provides a
sharp turn-on characteristic, making these devices excellent
replacement for Zener Diodes in many applications.
TO-92
Internal Block Diagram
1
1. Ref 2. Anode 3. Cathode
8-DIP
8-SOP
1
1.Cathode 2.3.4.5.7.NC
6.Anode 8.Ref
1
1.Cathode 2.3.6.7.Anode
4.5.NC 8.Ref
REFERENCE
REFERENCE (R)
2.5 Vref
ANODE
CATHODE (K)
ANODE (A)
©2002 Fairchild Semiconductor Corporation
CATHODE
Rev. 1.0.6
1 page  
Typical Performance Characteristics
LM431A/LM431B/LM431C
Figure 4. Cathode Current vs. Cathode Voltage
Figure 5. Cathode Current vs. Cathode Voltage
Figure 6. Change In Reference Input Voltage vs.
Cathode Voltage
Figure7. Dynamic Impedance Frequency
Figure 8. Small Signal Voltage Amplification vs. Frequency
Figure 9. Pulse Response
5
5 Page 
Ordering Information
Product Number
LM431CCZ
LM431CCM
LM431BCZ
LM431BCM
LM431ACN
LM431ACZ
LM431ACM
LM431CIZ
LM431CIM
LM431BIZ
LM431BIM
LM431AIZ
LM431AIM
Output Voltage Tolerance
0.5%
1%
2%
0.5%
1%
2%
LM431A/LM431B/LM431C
Package
TO-92
8-SOP
TO-92
8-SOP
8-DIP
TO-92
8-SOP
TO-92
8-SOP
TO-92
8-SOP
TO-92
8-SOP
Operating Temperature
-25 ~ +85°C
-40 ~ +85°C
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LM431BCM.PDF ] | |
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