PWR-82331 AND PWR-82333
DESCRIPTION
The PWR-82331 and PWR-82333 are
30 A, 3-phase motor drive hybrids. The
PWR-82331 has a +200 V rating and
uses MOSFETs in the output stage
while the PWR-82333 has a +500 V rat-
ing and an IGBT output stage. Both
types have individual fast recovery
diodes internally connected across the
output drive transistors to clamp induc-
tive flyback.
This new series of Smart Power Motor
Drives has CMOS Schmitt Trigger inputs
for high noise immunity. High- and low-
side input logic signals are XOR’d in
each phase to prevent simultaneous
turn-on of in-line transistors, thus elimi-
nating a shoot thru condition. The inter-
nal logic controls the high- and low-side
gate drives for each phase and can
operate from +5 to +15 V logic levels.
The internal power supply provides a
constant voltage source to the floating
high-side gate drives. This provides con-
stant output performance for switching
frequencies from dc to 50 kHz.
APPLICATIONS
Packaged in small cases, these hybrids
are an excellent choice for high-perfor-
mance, high-reliability motor drives for
Military and Aerospace servo-amps and
speed controls. Among the many appli-
cations are robotics; electro-mechanical
valve assemblies; actuator systems for
flight control surfaces on military and
commercial aircraft; antenna and radar
positioning; fan and blower motors for
environmental conditioning; thrust and
vector position control of mini-subs,
drones, and RPV’s; compressor motors
for cryogenic coolers; and high power
inverters.
The PWR-82331/82333 hybrids are
ideal for harsh military environments
where shock, vibration, and temperature
extremes are evident, such as missile
applications where fin actuator systems
control missile direction.
The PWR-82331/82333 operates over
the -55°C to +125°C temperature range
and is available with military processing.
SMART POWER 3-PHASE MOTOR DRIVES
FEATURES
Small Size (3.0" x 2.1" x 0.39")
200 V and 500 V Capability
30 A Current Capability
High-Efficiency MOSFET or IGBT
Drive Stage
Direct Drive from Commutation
Logic
Six Step Trapezoidal or
Sinusoidal Drive
Four Quadrant Operation
0.85° C/W θθ j-c Max
Military Processing Available
DIGITAL
CONTROL
AND
PROTECTION
CIRCUITRY
1991 ILC Data Device Corporation
NOTE: Pins 3, 7, and 11 are internally connected; Pins 19, 22, and 26 are internally connected.
FIGURE 1. PWR-82331/82333 BLOCK DIAGRAM