TL431 datasheet(17/41 Pages) TI

17 / 41 page

TL431, TL431A, TL431B

TL432, TL432A, TL432B

ADJUSTABLE PRECISION SHUNT REGULATORS

SLVS543H − AUGUST 2004 − REVISED JANUARY 2005

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Table 1. Graphs

FIGURE

Reference voltage vs Free-air temperature

Reference current vs Free-air temperature

Cathode current vs Cathode voltage

7, 8

OFF-state cathode current vs Free-air temperature

Ratio of delta reference voltage to delta cathode voltage vs Free-air temperature

Equivalent input noise voltage vs Frequency

Equivalent input noise voltage over a 10-s period

Small-signal voltage amplification vs Frequency

Reference impedance vs Frequency

Pulse response

Stability boundary conditions

Table 2. Application Circuits

FIGURE

Shunt regulator

Single-supply comparator with temperature-compensated threshold

Precision high-current series regulator

Output control of a three-terminal fixed regulator

High-current shunt regulator

Crowbar circuit

Precision 5-V 1.5-A regulator

Efficient 5-V precision regulator

PWM converter with reference

Voltage monitor

Delay timer

Precision current limiter

Precision constant-current sink

TL431 数据表(PDF) 17 Page - Texas Instruments

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