TL497A Datasheet, PDF (2/9 Pages) Texas Instruments – SWITCHING VOLTAGE REGULATORS

TL497A
SWITCHING VOLTAGE REGULATORS
SLVS009D – JUNE 1976 – REVISED JULY 1999
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
TA
SMALL-OUTLINE
(D)
PLASTIC DIP
(N)
SHRINK
SMALL-OUTLINE
(PW)
FORM
(Y)
0°C to 70°C
TL497ACD
TL497ACN
TL497ACPW
TL497AY
–40°C to 85°C
TL497AID
TL497AIN
—
—
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† ¹¹
BASE DRIVE† ¹²
13
CUR LIM SENS
3
FREQ CONTROL
INHIBIT ²
COMP INPUT ¹
4
SUBSTRATE
6
CATHODE
Current
Limit
Sense
1.2-V
Reference
Oscillator
10
COL OUT
8
EMIT OUT
7 _ANODE
† _{BASE and BASE DRIVE are used for device testing only. They normally are not used in circuit applications of the device.}
2
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