SG1731/SG2731/SG3731

Rev 1.3a

Copyright

 1999

11861

Western

Avenue

∞

∞

∞

∞

∞

Garden

Grove,

CA

92841

5

(714) 898-8121

∞

∞

∞

∞

∞

FAX: (714) 893-2570

APPLICATION CIRCUITS

FIGURE 5

FIGURE 6

Bi-directional speed control results when the feedback voltage

transducer is a tachometer.

The two-quadrant transfer function of the SG1731 is ideal for

pulse width modulated audio power amplifiers.

Ambient

Temperature Range

Part No.

Package

Connection Diagram

SG1731J/883B

-55

°C to 125°C

SG1731J

-55

°C to 125°C

SG2731J

-25

°C to 85°C

SG3731J

0

°C to 65°C

16-PIN CERAMIC DIP

J - PACKAGE

SG2731N

-25

°C to 85°C

SG3731N

0

°C to 65°C

16-PIN PLASTIC DIP

N - PACKAGE

Note 1. All packages are viewed from the top.

Note 2. Contact factory for flatpack and leadless chip carrier availability.

6

8

-V

T

2V

∆-

C

T

ERROR

-V

S

SUBSTRATE

-V

O

OUTPUT B

3

7

INV. INPUT

4

OUTPUT A

N. I. INPUT

+V

O

2V

∆+

SHUTDOWN

+V

T

+V

S

5

2

1

9

16

15

12

13

11

14

10

N Package: RoHS Compliant / Pb-free Transition DC: 0503

N Package: RoHS / Pb-free 100% Matte Tin Lead Finish