TL431 / TL431A / TL431B

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 4

Copyright

Rev. 1.4, 2006-09-26

Precision programmable References

TM

®

GRAPH / CURVE INDEX

F I GURE INDEX

Characteristic Curves

Figure #

1.

Reference Input Voltage vs. Free-Air Temperature

2.

Reference INput Current vs. Free-Air Temperature

3.

Cathode Current vs. Cathode Voltage

4.

Cathode Current vs. Cathode Voltage

5.

Off-State Cathode Current vs. Free-Air Temperature

6.

Ratio of Delta Reference Voltage to Delta Cathode

Voltage vs. Free-Air Temperature

7.

Equivalent Input Noise Voltage vs. Frequency

Parameter Measurement Information

Figure #

8.

9.

10.

Typical Characteristics

Figure #

11.

Equivalent Input Noise Voltage Over a 10-Second Period

12.

Small-Signal Voltage Amplification vs. Frequency

13.

Reference Impedance vs. Frequency

14.

Pulse Response

15.

Stability Boundary Conditions

Application Information

Figure #

16.

Shunt Regulator

17.

Single-Supply Comparator with Temperature-

Compensated Threshold

18.

High Current Shunt Regulator

19.

Crowbar Circuit

20.

Voltage Monitor

21.

Precision Constant-Current Sink