ACT5026 Просмотр технического описания (PDF) - Aeroflex Corporation
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ACT5026 Datasheet PDF : 2 Pages
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ACT5026 10 AMP 3-PHASE
BRUSHLESS DC MOTOR CONTROLLER
Features
Preliminary
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 (-55°C to +125°C) Temperature Range
CIRCUIT TECHNOLOGY
www.aeroflex.com
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
16.7 KHz
Clock
(Optional)
SYNC
Cktry
OSC
BLOCK DIAGRAM
V Supply
Hall
Inputs
PWM
Input
External
Loop
Comp
Current +
Command
Inputs -
Current
Monitor
FW
Rect
PWM
Logic
3Ø
MOSFET
H-Bridge
Direction
Brushless
Motor
Internal use
+15V
Reg
+15V
≤ 70mA
FW
Rect
DC/DC
Conv
Current -15V
Sense Reg
Internal use
-15V
≤ 20mA
V RTN
eroflex Circuit Technology – Motor Driver Modules For The Future © SCD5026 REV A 8/21/98
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