TL431C Datasheet, PDF (7/16 Pages) NXP Semiconductors – Adjustable precision shunt regulators

Philips Semiconductors
Adjustable precision shunt regulators
Product specification
TL431C, TL431AC, TL431I,
TL431AI, LM431AC
4
3
2
1
0
–1
–2
–3
–4
0
1
2
3
4
5
6
7
8
9
10
t – TIME – (SECONDS)
Equivalent Input Noise Voltage Over a 10-Second Period
19.1V
1kΩ
500µF
910Ω
2000µF
TL431
(DUT)
820Ω
16Ω
0.1µF
V_CC
1µF
TLE2027
A_V = 10V/mV
160kΩ
16kΩ 16kΩ
1µF
V_CC
TLE2027
A_V = 2V/V
33kΩ
33kΩ
V_EE
V_EE
Test Circuit
Figure 12.
22µF
1MΩ
CRO
SL01174
1997 Feb 25
400
I_K = 10mA
T_amb = 25°C
350
300
250
200
150
100
10
100
1K
10K
f–FREQUENCY–Hz
100K
Figure 13. Equivalent Input Noise Voltage vs. Frequency
7
SL01180