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TS431IZT

P1-P3P4-P6P7-P9P10-P12P13-P14
Electrical characteristics TS431
4/14 DocID5558 Rev 10
Figure 2. Reference voltage vs. temperature Figure 3. Test circuit for V
KA
= V
ref
-40-200 20406080100120
Temperature (°C)
1.228
1.232
1.236
1.24
1.244
1.248
1.252
Reference voltage (V)
Vka = Vref
Ik = 100 µA
Input
Vka
Vref
Ik
Output
Figure 4. Cathode voltage vs. cathode current Figure 5. Cathode voltage vs. cathode current
-1 -0.5 0 0.5 1 1.5
Vka Cathode voltage (V)
-15
-10
-5
0
5
10
15
Ika Cathode current (mA)
Vka = Vref
T = 25°C
0 102030405060
Ika Cathode current (µA)
0
0.5
1
1.5
Vka Cathode voltage (V)
-40°C
+25°C
+85°C
+125°C
Figure 6. Reference input current vs.
temperature
Figure 7. Static impedance vs. temperature
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
0
20
40
60
80
100
Iref Reference current (nA)
Ik = 10mA
R1 = 10 K
R2 = +
-40-200 20406080100120
Temperature (°C)
0
0.1
0.2
0.3
0.4
Rka Static Impedance (Ohms)
Vka = Vref
Ik = 100µA to 15mA
DocID5558 Rev 10 5/14
TS431 Electrical characteristics
Figure 8. Off-state current vs. temperature Figure 9. Test circuit for off-state current
measurement
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
0
50
100
150
200
IOff Off-State current (nA)
Input
Vka=6V
Ioff
Figure 10. Ratio of change in reference input
voltage to change in V
KA
voltage vs.
temperature
Figure 11. Test circuit for V
KA
> V
ref
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
-3
-2
-1
0
Ratio of change in reference input voltage (mV/V)
Ik = 10mA
Vka = 6V to Vref
Input
Ik
Vka = Vref . (1+R1/R2) + Iref . R1
Vka
R1
R2
Iref
Vref
Figure 12. Phase and gain vs. frequency Figure 13. Test circuit for phase and gain
measurement
1E+3 1E+4 1E+5 1E+6
Frequency (Hz)
0
10
20
30
40
50
60
Gain (dB)
-150
-100
-50
0
50
100
150
Phase (°)
Phase margin # 50°
Gain
Phase
Input
Vref
Ik=100µA
Output
10µF
10µF
6.8K
4.3K
Electrical characteristics TS431
6/14 DocID5558 Rev 10
Figure 14. Pulse response at I
k
= 100 µA Figure 15. Test circuit for pulse response at
I
k
= 100 µA
012345678910
Time (µs)
0
1
2
3
input and output voltage (V)
Input voltage
Output voltage
Ik=100µA
Output
50
18K
Pulse
Generator
f=100KHz
Intput
Figure 16. Pulse response at I
k
= 1mA Figure 17. Test circuit for pulse response at
I
k
= 1 mA
01234567
Time (µs)
0
1
2
3
input and output voltage (V)
Input voltage
Output voltage
Ik=1mA
Output
50
1.8K
Pulse
Generator
f=100KHz
Intput
Figure 18. Equivalent input noise vs. frequency
0.1 1 10 100 1000
Frequency (KHz)
0
50
100
150
200
250
Equivalent input noise (nv/VHz)
Vka = Vref
Ik = 100 µA
T=25°C
P1-P3P4-P6P7-P9P10-P12P13-P14

TS431IZT

Mfr. #:
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Manufacturer:
STMicroelectronics
Description:
Voltage References 1.24-6V Adjust Shunt
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