SA01U Apex Microtechnology Corporation, SA01U Datasheet

SA01U

Manufacturer Part Number

SA01U

Description

PWM Amplifier

Manufacturer

Apex Microtechnology Corporation

Datasheet

1.SA01U.pdf (4 pages)

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GND

FEATURES

• SINGLE SUPPLY OPERATION

• WIDE SUPPLY RANGE — 16-100V

• 20A CONTINUOUS OUTPUT

• PROGRAMMABLE CURRENT LIMIT

• SHUTDOWN CONTROL

• HERMETIC PACKAGE

• 2 IN

APPLICATIONS

• BRUSH TYPE MOTOR CONTROL

• PELTIER CONTROL

• REACTIVE LOADS

• MAGNETIC COILS (MRI)

• ACTIVE MAGNETIC BEARING

• VIBRATION CANCELLING

DESCRIPTION

can supply 2KW to the load. The full bridge output amplifier can

be operated from a single power supply over a wide range of

voltages. An error amplifier is included which can provide gain

for the velocity control loop in brush type motor control appli-

cations. Current limit is programmable by a single resistor. A

shutdown input turns off all four drivers of the H bridge output.

A precision reference output is provided for use in offsetting

the error amplifier. The error amplifier can then be scaled for

standard input signals. The amplifier is protected from shorts

to supply or ground. The H bridge output MOSFETs are

protected from thermal overloads by directly sensing the

temperature of the die. The 10-pin hermetic power package

occupies only 2 square inches of board space and is isolated.

BLOCK DIAGRAM

–IN

+IN

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

M I C R O T E C H N O L O G Y

7.5V REF OUT

EA OUT

AS EA OUT (3) GOES MORE POSITIVE, HIGH STATE OF A OUT (6)

INCREASES AND HIGH STATE OF B OUT (9) DECREASES.

The SA01 amplifier is a pulse width modulation amplifier that

FOOTPRINT

ERROR

AMP

PWM

SUP/

REF

SHUTDOWN

CURRENT

CONTROL

DRIVERS

OUTPUT

LIMIT

AND

H T T P : / / W W W . A P E X M I C R O T E C H . C O M

PULSE WIDTH MODULATION AMPLIFIER

B OUT

A OUT

SHDN/

FILTER

SENSE

EXTERNALCONNECTIONS

TYPICAL APPLICATION

SA01

.1µF

EA OUT

.1µF

GND

REF

–IN

+IN

( 8 0 0 ) 5 4 6 - A P E X

Motor Driver With Tach Feedback

–IN

7.5V

REF

+IN

SA01

DOWN

SHUT

VIEW

SHDN/

FILTER

TOP

OUT

FILTER

( 8 0 0 ) 5 4 6 - 2 7 3 9

SENSE

LIMIT

PWM

Package: PD10/60S

LIMIT

SHDN/

FILTER

B OUT

A OUT

SENSE

LIMIT

GND

OUT

FILTER

LIMIT

–

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