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KA431L Schematic ( PDF Datasheet ) - Fairchild

Teilenummer KA431L
Beschreibung Programmable Shunt Regulator
Hersteller Fairchild
Logo Fairchild Logo 




Gesamt 12 Seiten
KA431L Datasheet, Funktion
KA431/KA431A/KA431L
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 KA431/KA431A/KA431L are three-terminal adjustable
regulator series with a guaranteed thermal stability over
applicable temperature ranges. The output voltage may be
set to any value between VREF (approximately 2.5 volts)
and 36 volts with two external resistors These devices have a
typical dynamic output impedance of 0.2W Active output
circuitry provides a very 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
2.5 Vref
CATHODE
REFERENCE (R)
©2002 Fairchild Semiconductor Corporation
ANODE
CATHODE (K)
ANODE(A)
Rev. 1.0.6






KA431L Datasheet, Funktion
KA431/KA431A/KA431L
Typical Performance Characteristics (Continued)
140
120 A VKA = Vref
A
B
B V = 5.0 V @ I = 10
KA K mA
C VKA = 10 V @ IK = 10mA
100 D VKA = 15 V @ IK = 10mA
C
TA = 25oC
80
60
40
D
20
0
100p
1n
10n 100n
CL, LOAD CAPACITANCE
Figure 10. Stability Boundary Conditions
10µ
6

6 Page









KA431L pdf, datenblatt
KA431/KA431A/KA431L
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
8/20/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation

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