TL497ACN 参数 Datasheet PDF下载

TL497A

SWITCHING VOLTAGE REGULATORS

SLVS009D – JUNE 1976 – REVISED JULY 1999

AVAILABLE OPTIONS

PACKAGED DEVICES

TA

0°C to 70°C

–40°C to 85°C

SMALL-OUTLINE

(D)

TL497ACD

TL497AID

PLASTIC DIP

(N)

TL497ACN

TL497AIN

SHRINK

SMALL-OUTLINE

(PW)

TL497ACPW

—

CHIP

FORM

(Y)

TL497AY

—

The D and PW packages are only taped and reeled. Add the suffix R to the device type (e.g.,

TL497ACPWR). Chip forms are tested at 25°C.

functional block diagram

BASE†

BASE DRIVE†

CUR LIM SENS

FREQ CONTROL

INHIBIT

COMP INPUT

SUBSTRATE

CATHODE

11

12

13

3

2

1

4

6

1.2-V

Reference

Oscillator

10

8

7

COL OUT

EMIT OUT

ANODE

Current

Limit

Sense

† BASE and BASE DRIVE are used for device testing only. They normally are not used in circuit applications of the device.

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POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265