PLM393LVDR datasheet(20/29 Pages) TI1

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100 NŸ

SET

100 NŸ

RESET

50 NŸ

RPU

4.7 NŸ

1 0Ÿ

1N4148

100 pF

1N4148

+VIN

RPULLUP

VCC

Logic

Out

VLOGIC

RPULLUP

VLOGIC

Logic

10 kŸ

VCC

Open

Drain

Output

LM393LV-Q1

SNOSDB3 – JUNE 2020

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Typical Applications (continued)

Figure 15. Universal Logic Level Shifter

The two 10 kΩ resistors bias the input to half of the input logic supply level to set the threshold in the mid-point of

the input logic levels. Only one shared output pull-up resistor is needed and may be connected to any pull-up

voltage between 0 V and 5.5 V. The pullup voltage should match the driven logic input "high" level.

10.2.6 One-Shot Multivibrator

Figure 16. One-Shot Multivibrator

A monostable multivibrator has one stable state in which it can remain indefinitely. It can be triggered externally

to another quasi-stable state. A monostable multivibrator can thus be used to generate a pulse of desired width.

The desired pulse width is set by adjusting the values of C2 and R4. The resistor divider of R1 and R2 can be

used to determine the magnitude of the input trigger pulse. The output will change state when V1 < V2. Diode D2

provides a rapid discharge path for capacitor C2 to reset at the end of the pulse. The diode also prevents the

non-inverting input from being driven below ground.

10.2.7 Bi-Stable Multivibrator

Figure 17. Bi-Stable Multivibrator

PLM393LVDR Datasheet(PDF) 20 Page - Texas Instruments

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