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參數(shù)資料
| 型號： | PW-82351-120 |
| 廠商： | DATA DEVICE CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 150 A, XMA |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 273K |
| 代理商： | PW-82351-120 |
4
INTRODUCTION
The PW-82351 is a complete 3-phase motor drive intended for
use with brushless dc motors in aerospace applications. The
PW-82351 can be used with either analog or digital servo con-
trol systems and provides the interface between the power
stage and control electronics.
The isolation barrier, which separates the power and control
stage, attenuates the ground noise generated from high speed,
high power switching. All signals from the control to the power
sections are isolated from power and ground of the other sec-
tion. This eliminates false triggering of the input signals and
the need for creative grounding schemes. The isolation barrier
also allows the user to operate the output stage from either
unipolar or bipolar power supplies without level shifting the
input signals.
A built in DC-DC power supply located in the control stage pro-
vides power to all electronics in the power stage. This elimi-
nates the need for refresh cycles or external power supplies to
FIGURE 2. INTERNAL INPUT LOGIC NOISE FILTERING
power the gate drive circuitry and allows switching duty cycles
from 0 - 100%. The PW-82351 has no power supply sequenc-
ing requirement.
Motor Current is measured in the output of the PW-82351 and
is available as a composite current or individual phase current
signal. This current signal can be used as a feedback signal in
a servo drive to create a torque loop.
The output power transistors are protected from a short circuit
or overvoltage condition applied to the output pins. When a
short circuit condition is detected, the output transistor is shut
down and a flag is set indicating a short has occurred. The
PW-82351 will continue to restart until a short is removed or
the user disables the drive. When an overvoltage condition is
detected, the overvoltage switch is enabled and a load is
applied to the high voltage bus. A status flag is set indicating
an overvoltage condition has occurred.
LOGIC CONTROL INPUTS
UA / DIR
UB / BRAKE
UC / 2Q-4Q
LA / PWM
LB / IDIR
LC / BRAKE PWM
33k
1k
270pF
TO LOGIC
TEST
CONDITION
SYMBOL
Notes: 1. VCC to RTN. VCC to RTN must be
≥ 10V for short circuit protection to operate.
2. tr is ≥ rise time of the +5V power supply. See description of the uncommanded motion control operation.
3. For output switching tr and tf are measured from 10% - 90% of output voltage.
4. For output switching td on and off and tsd are measured from 50% of the input voltage to 10% of the output voltage.
°C
in-lbs
oz (gr)
°C/W
°C
kHz
+250
3
14 (399)
0.55
0.85
+150
+125
+150
25
0.5
0.7
2
-55
-65
5
UNITS
MAX
TYP
MIN
MECHANICAL
Maximum Lead Soldering Temperature
Mounting Torque
Weight
THERMAL
Maximum Thermal Resistance
Junction Temperature Range
Case Operating Temperature
Case Storage Temperature
SWITCHING FREQUENCY
PARAMETER
TABLE 2. PW-82351 SPECIFICATIONS (CONTINUED)
(TC = +25°C UNLESS OTHERWISE SPECIFIED)
Ts
θjc
Tj
Tc
Tcs
f
Each Output Switch
Over Voltage Switch
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