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脉冲宽度调节控制电路放大类11 tl494.pdf

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TL494

PULSE-WIDTH-MODULATIONCONTROLCIRCUITS

SLVS074B–JANUARY1983–REVISEDJULY1999

AVAILABLEOPTIONS

PACKAGEDDEVICES

SHRINKCHIP

SMALLPLASTICSMALL

TASMALLFORM

OUTLINEDIPOUTLINE

OUTLINE(Y)

(D)(N)(NS)

(PW)

0°Cto70°CTL494CDTL494CNTL494CNSTL494CPWTL494Y

–40°Cto85°CTL494IDTL494IN———

TheD,NS,andPckagesareavailabletapedandreeled.AddthesuffixRtodevicetype(e.g.,

TL494CDR).Chipformsaretestedat25°C.

functionalblockdiagram

OUTPUTCTRL

(seeFunctionTable)

RT

CT

C1

E1

DTC

C2

1IN+

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