TL431(1999) Просмотр технического описания (PDF) - Microsemi Corporation
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TL431 Datasheet PDF : 12 Pages
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PRODUCT DATABOOK 1996/1997
TL431/TL431A/TL431B
PRECISION PROGRAMMABLE REFERENCES
PRODUCTION DATA SHEET
TYPICAL CHARACTERISTICS
FIGURE 14. — PULSE RESPONSE
6
5
4
3
2
1
0
3
2
1
0
0
1
2
3
45
6
(t) Time - (µs)
220W
Pulse
Generator
50W
f = 100kHz
Test Circuit for Pulse Response
Output
GND
FIGURE 15. — STABILITY BOUNDARY CONDITIONS
100
90
A VKA = VREF
B VKA = 5V
80
C VKA = 10V
D VKA = 15V
70
Stable
60
A*
50
B*
C*
IK = 10mA
TA = 25°C
Stable
40
30
D*
20
10
0
0.001
0.01
0.1
1
10
(CL) Load Capacitance - (µF)
* The areas under the curves represent conditions that may cause the
device to oscillate. For curves B, C, and D, R2 and V+ were adjusted to
establish the initial VKA and IK conditions with CL = 0. VBATT and CL were
then adjusted to determine the ranges of stability.
R1=10kW
IK
CL
R2
150W
VBATT
Test Circuit for Curve A
150W
IK
CL
VBATT
Test Circuit for Curves B, C, and D
10
Copyright © 1999
Rev. 1.3 9/99
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