t

t

0

+

_

V+

TLV1701

V-

GND

GND

t

t

0

+

_

V+

TLV1701

V-

GND

GND

(A) NON-INVERTING ZERO CROSSING DETECTOR

(B) INVERTING ZERO CROSSING DETECTOR

+

_

V+

TLV1701

V-

REF3333

GND

TLV1701

TLV1702

TLV1704

SBOS589 – DECEMBER 2013

www.ti.com

SETTING REFERENCE VOLTAGE

It is important to use a stable reference when setting the transition point for the TLV170x. The REF3333 as

shown in Figure 19 provides a 3.3-V reference voltage with low drift and only 3.9

μA of quiescent current.

Figure 19. Reference Voltage for TLV170x

APPLICATION EXAMPLES

Application exmaples are shown in Figure 20 to Figure 23.

Zero Crossing Detector

Figure 20. Zero Crossing Detector

8

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