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TL431_10 Datasheet, PDF (26/75 Pages) Texas Instruments – PRECISION PROGRAMMABLE REFERENCE | |||
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TL431, TL431A, TL431B
TL432, TL432A, TL432B
SLVS543K â AUGUST 2004 â REVISED JUNE 2010
6
TA = 25°C
5
PULSE RESPONSE
Input
4
3
Output
2
1
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220 â¦
Pulse
Generator
f = 100 kHz
50 â¦
Output
GND
TEST CIRCUIT FOR PULSE RESPONSE
0
â1 0 1 2 3 4 5 6 7
t â Time â µs
Figure 14.
STABILITY BOUNDARY CONDITIONS
FOR ALL TL431 AND TL431A DEVICES
(EXCEPT FOR SOT23-3, SC-70, AND Q-TEMP DEVICES)
100
A V KA = Vref
90 B VKA = 5 V
C VKA = 10 V
80 D VKA = 15 Vf
TA = 25°C
B
70
60
Stable
50
Stable
C
A
40
30
D
20
10
0
0.001
0.01
0.1
1
10
150 â¦
IKA
+
CL
VBATT
â
TEST CIRCUIT FOR CURVE A
R1 = 10 kâ¦
CL
R2
IKA
150 â¦
+
VBATT
â
CL â Load Capacitance â µF
TEST CIRCUIT FOR CURVES B, C, AND D
A. The areas under the curves represent conditions that may cause the device to oscillate. For curves B, C, and D, R2 and V+ are adjusted
to establish the initial VKA and IKA conditions, with CL = 0. VBATT and CL then are adjusted to determine the ranges of stability.
Figure 15.
26
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Product Folder Link(s): TL431 TL431A TL431B TL432 TL432A TL432B
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