TL431-Q1 Datasheet, PDF (6/26 Pages) Texas Instruments – ADJUSTABLE PRECISION SHUNT REGULATOR

TL431−Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D − MARCH 2005 − REVISED MARCH 2013
TYPICAL CHARACTERISTICS
Table 1. Graphs
Reference voltage vs Free-air temperature
Reference current vs Free-air temperature
Cathode current vs Cathode voltage
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
FIGURE
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7, 8
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15
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Table 2. Application Circuits
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
FIGURE
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18
19
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23
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27
28
29
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