CIRCUIT TECHNOLOGY
www.aeroflex.com
eroflex Circuit T
echnology
Motor Driver Modules For The Future SCD5026 REV A 8/21/98
Features
s
V Supply 28V to 40V
s
10 Amps Continuous Current (Up to 85
C)
s
Package Size 1.7" x 1.3" x 0.275"
s
4 Quadrant Control
s
3 Phase Commutational Logic
s
15VDC Regulators for External & Internal Use
s
Military Processing Available
s
MIL-PRF-38534 Compliant Circuits Available
s
Full Military (-55C to +125C) Temperature Range
General Description
The ACT5026 combines a high power MOSFET 3 phase H-bridge output stage with all of the control circuitry
required to form a closed loop motor controller. The input command voltage linearly controls the motor
current with a scale-factor of 2 Amps per volt and a small-signal bandwidth of 2KHz. Input command
polarity determines Motor direction. Only one supply is necessary due to the internal regulators and
converter which provide
15 Volts for internal as well as external use.
The circuitry includes:
Fully Differential Input Amplifier
A Pulse Width Modulator Internally clocked at 16.7KHz (Has external Sync pin)
15 Volt regulated outputs derived from main supply
Internal Current Sense Resistor
External Loop Compensation pins to tailor to specific motors
Current Monitor Output with Scale Factor of 1.67 Volts/Amp
V Supply
Hall
Brushless
Motor
Inputs
+15V
-15V
70mA
20mA
V RTN
+15V
Reg
-15V
Reg
DC/DC
Conv
FW
Rect
Current
Sense
Current
Monitor
Current
Command
Inputs
External
Loop
Comp
FW
Rect
16.7 KHz
Clock
(Optional)
SYNC
Cktry
OSC
PWM
Logic
3
H-Bridge
MOSFET
BLOCK
DIAGRAM
Direction
Internal use
Internal use
ACT5026 10 AMP 3-PHASE
BRUSHLESS DC MOTOR CONTROLLER
PWM
Input
Preliminary
+
-
2
Aeroflex Circuit Technology
SCD5026 REV A 8/21/98 Plainview NY (516) 694-6700
Pinout Descriptions
PIN Number
FUNCTION
1
+15V OUTPUT
2
EXTERNAL CAP +
3
EXTERNAL CAP -
4
-15V OUTPUT
8
COMMUTATOR INPUT A
7
COMMUTATOR INPUT B
6
COMMUTATOR INPUT C
13
CURRENT MONITOR OUT
15
CURRENT COMMAND (+)
14
CURRENT COMMAND RETURN (-)
17
MOTOR DRIVE OUTPUT A
18
MOTOR DRIVE OUTPUT B
19
MOTOR DRIVE OUTPUT C
20
V SUPPLY
10
V RETURN SIGNAL
16
V RETURN PWR
5
CLOCK
12
LOOP COMPENSATION, ERROR AMP OUTPUT
9
LOOP COMPENSATION, ERROR AMP SUMMING NODE
11
PWM INPUT
Aeroflex Circuit Technology
35 South Service Road
Plainview New York 11830
FAX: (516) 694-6715
Toll Free Inquiries: 1-(800) 843-1553
Telephone: (516) 694-6700
Specifications subject to change without notice
ACT 5026
88379
MADE IN U.S.A.
XXXX
1.300
1.700
2.200
1.125
.125
TYP
.280
TYP
1.950
1.050
.287
.010
.250
.010
(9 Spaces at .125)
.125
(2 Holes)
1.550
.020
.045
.600
.020
.155
.040
TYP
.275
MAX
Z
Package Outline Drawing
C I R C U I T T E C H N O L O G Y
PDF 
ZIP