SG2524, SG3524
REGULATING PULSE WIDTH MODULATORS
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003
D
Complete Pulse-Width Modulation (PWM)
D
D
D
Power-Control Circuitry
Uncommitted Outputs for Single-Ended or
Push-Pull Applications
Low Standby Current . . . 8 mA Typ
Interchangeable With Industry Standard
SG2524 and SG3524
SG2524 . . . D OR N PACKAGE
SG3524 . . . D, N, OR NS PACKAGE
(TOP VIEW)
description/ordering information
The SG2524 and SG3524 incorporate all the
9
8
functions required in the construction of a
regulating power supply, inverter, or switching
regulator on a single chip. They also can be used
as the control element for high-power-output
applications. The SG2524 and SG3524 were
designed for switching regulators of either polarity, transformer-coupled dc-to-dc converters, transformerless
voltage doublers, and polarity-converter applications employing fixed-frequency, pulse-width modulation
(PWM) techniques. The complementary output allows either single-ended or push-pull application. Each device
includes an on-chip regulator, error amplifier, programmable oscillator, pulse-steering flip-flop, two uncommitted
pass transistors, a high-gain comparator, and current-limiting and shutdown circuitry.
ORDERING INFORMATION
TA
INPUT
REGULATION
MAX (mV)
PACKAGE†
PDIP (N)
0°C to 70°C
30
SOIC (D)
SOP (NS)
PDIP (N)
–25°C to 85°C
20
SOIC (D)
Tube of 25
Tube of 40
Reel of 2500
Reel of 2000
Tube of 25
Tube of 40
Reel of 2500
ORDERABLE
PART NUMBER
SG3524N
SG3524D
SG3524DR
SG3524NSR
SG2524N
SG2524D
SG2524DR
SG2524
SG3524
SG3524
SG2524N
TOP-SIDE
MARKING
SG3524N
IN–
IN+
OSC OUT
CURR LIM+
CURR LIM–
RT
CT
GND
1
2
3
4
5
6
7
16
15
14
13
12
11
10
REF OUT
V
CC
EMIT 2
COL 2
COL 1
EMIT 1
SHUTDOWN
COMP
† Package drawings, standard packing quantities, thermal data, symboliztion, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2003, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
