TC1039 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC1039

Linear Building Block – Single Comparator in SOT Packages

Microchip Technology 

TC1037/TC1038/TC1039

FIGURE 4-6:

PULSE WIDTH MODULATOR

VDD

R1

TC1037

VC

R6

100k

10k

1/4

R4

VDD

–

C1

+

R2

100k

R3

100k

VH =

VDD (R1R2R6 + R2R3R6) + VC (R1R2R3)

R1R2R6 + R1R3R6 + R2R3R6 + R1R2R3

VL =

VDD (R2R3R6) + VC (R1R2R3)

R1R2R6 + R1R3R6 + R2R3R6 + R1R2R3

FREQ =

1

2 (0.694) (R4) (C1)

For Square Wave Generation

Select R1 = R2 = R3

VC =

VDD

2

© 2002 Microchip Technology Inc.

DS21344B-page 9

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