TL431B Datasheet, PDF (16/40 Pages) Texas Instruments – ADJUSTABLE PRECISION SHUNT REGULATORS

TL431, TL431A, TL431B, TL432, TL432A, TL432B
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS543A – AUGUST 2004 − REVISED AUGUST 2004
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
5
6
7, 8
9
10
11
12
13
14
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
17
18
19
20
21
22
23
24
25
26
27
28
29
16
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