TL431_432 Datasheet, PDF (9/14 Pages) Diodes Incorporated – ADJUSTABLE PRECISION SHUNT REGULATOR

TL431/TL432
ADJUSTABLE PRECISION SHUNT REGULATOR
Typical Performance Characteristics (Continued)
6
In p ut
T_A = 25°C
5
4
3
Out put
2
1
0
01 2
10 0
90
D
345 67
t Time (μs)
Pulse Response
D
8 9 10
T_A = 25°C
80
70
Sta b le
60
C
C
A
B
Sta b le
Sta b le
50
B
40
30
20
A V_KA = V_REF
B V_KA = 5V
10
C V_KA = 10V
D V_KA = 15V
0
0.00001 0.0001 0.001 0.01 0.1
1
10
C_L -Load Capacitance - uF
Stability Boundary Conditions
Test Circuit for Pulse Response
Test Circuit for Curve A
Test circuit for curves B, C, D
Test Circuit for Curves B, C, D
The device is stable under all conditions with a load capacitance not exceeding 50pF. The device is stable under all conditions with a load
capacitance between 5nF and 20nF. The device is stable under all conditions with a load capacitance exceeding 300nF. With a cathode
current not exceeding 5mA, the device is stable with any load capacitance.
TL431/432
Document number: DS35050 Rev. 2 - 2
9 of 14
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September 2010
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