TL431CDR2 Просмотр технического описания (PDF) - ON Semiconductor

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TL431CDR2

Programmable Precision References

ON Semiconductor 

TL431, A, B Series, NCV431A, B

V+

Vout

V+

l

R1

R3

R2

R4

L.E.D. indicator is ‘on’ when V+ is between the

upper and lower limits.

ǒ Ǔ Lower Limit +

1

)

R1

R2

Vref

ǒ Ǔ Upper Limit +

1

)

R3

R4

Vref

Figure 26. Voltage Monitor

Vin

Vth = Vref

Vout

Vin

< Vref

> Vref

Vout

V+

≈ 2.0 V

Figure 27. Single−Supply Comparator with

Temperature−Compensated Threshold

25 V

1N5305

2.0 mA

5.0 k 50 k

1% 1%

10 kW

V

1.0 kW

V

500 k 5.0 M

1% 1%

100 kW

V 1.0 MW

V

Range

10 k

Calibrate

25 V

−

LM11

+

Vout

RX

−5.0 V

Rx + Vout D

W

V

Range

Figure 28. Linear Ohmmeter

Tl = 330 to 8.0 W

TI

8.0 W

*

* Thermalloy

* THM 6024

* Heatsink on

* LP Package

38 V

330

360 k

56 k

+

470 mF

1.0 mF

Volume

0.05 mF 47 k

Tone

10 k

25 k

Figure 29. Simple 400 mW Phono Amplifier

http://onsemi.com

9

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