TL431(1999) Просмотр технического описания (PDF) - Microsemi Corporation

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производитель

TL431
(Rev.:1999)

Precision programmable References

Microsemi Corporation 

PRODUCT DATABOOK 1996/1997

TL431/TL431A/TL431B

PRECISION PROGRAMMABLE REFERENCES

PRODUCTION DATA SHEET

VBATT

R (see Note)

R1 0.1%

VREF

R2 0.1%

APPLICATION INFORMATION

VO

IK

TL431/A

& TL431B

VBATT

TL431/A

& TL431B

Input

VO

VON » 2V

VOFF » VBATT

VO = 1 +

R1 

R2 

* VREF

Note: R should provide ≥ 1mA cathode current to

the TL431/A & TL1431 at minimum VBATT.

FIGURE 16 — SHUNT REGULATOR

GND

FIGURE 17 — SINGLE-SUPPLY COMPARATOR WITH

TEMPERATURE-COMPENSATED THRESHOLD

VBATT

VO

R1

R2

TL431/A

& TL431B

VO = 1 +

R1 

R2 

* VREF

FIGURE 18 — HIGH CURRENT SHUNT REGULATOR

VBATT

R1

TL431/A

& TL431B

R2

VO

C

(see Note)

Note: Refer to the stability boundary conditions in

Figure 15 to determine allowable values for C.

FIGURE 19 — CROWBAR CIRCUIT

Copyright © 1999

Rev. 1.3 9/99

11

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