TC1043 查看數據表（PDF） - Microchip Technology

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TC1043

Linear Building Block – Low Power Voltage Reference with Dual Op Amp, Dual Comparator, and Shutdown Mode

Microchip Technology 

TC1043

FIGURE 4-4:

RA

VSRC

RB

COMPARATOR

EXTERNAL HYSTERESIS

CONFIGURATION

RC

VDD

TC1043

+

– Comparator

VOUT

VR

FIGURE 4-5:

VDD

32.768 KHZ “TIME-OF-

DAY” CLOCK

OSCILLATOR

32.768 kHz

RA

150k

RB

150k

VDD

+

–

RC

CA

1M

100 pF

TC1043

Comparator

VOUT

TPER = 30.52 µsec

FIGURE 4-6:

NON-RETRIGGERABLE MULTI-VIBRATOR

VDD

In

In

t0

R3

1M

R4

1M

R1

A

100k

R2

100k B

GND

–

CMPTR1

+

R10

61.9k

R5

10M

D1

TC1043

R6

562k

C

C1

100 pF

TC1025

–

CMPTR2

+

R8

R9

243k

10M

D2

R7

1M

Out

Out

C

VDD

GND

VDD

GND

FIGURE 4-7:

SQUARE WAVE GENERATOR

VDD

R1

100k

C1

TC1043

R4

VDD

–

+

R2

100k

R3

100k

Comparator

VH = R2 (VDD)

R2 + (R1||R3)

VL = (VDD) (R2||R3)

R1 + (R2||R3)

FREQ =

1

2(0.694)(R4)(C1)

DS21347B-page 10

© 2002 Microchip Technology Inc.

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