RESET

V

DD

t

d

V

+V

IT

HYS

-

1.1V

ValidOutput

V

DD

Transient

Amplitude

Duration

V

IT-

8

TLV809

SLVSA03D – JUNE 2010 – REVISED MARCH 2016

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Copyright © 2010–2016, Texas Instruments Incorporated

9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

duration and the amplitude of the transient. The amplitude of the transient is measured from the bottom of the

transient to the negative threshold voltage of the device, as shown in Figure 8.

Figure 8. Voltage Transient Measurement

The device does not respond to transients that are fast duration and low amplitude or long duration and small

amplitude. Figure 7 illustrates the relationship between the transient amplitude and duration needed to trigger a

reset. Any combination of duration and amplitude above the curve generates a reset signal.

9.1.2 Reset During Power-Up and Power-Down

turns off and becomes high impedance. The voltage on the RESET pin rises to the voltage level connected to the

pullup resistor. Figure 9 shows a typical waveform for power-up.

Figure 9. Power-Up Response