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参数资料
| 型号： | PWR-82520-800 |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 15 A, DIP41 |
| 封装： | DIP-41 |
| 文件页数： | 11/12页 |
| 文件大小： | 174K |
| 代理商： | PWR-82520-800 |
8
OUTPUT CURRENT
Output current derating as a function of the hybrid case temper-
ature is provided in FIGURE 10. The hybrid contains internal
pulse by pulse current limit circuitry to limit the output current dur-
ing fault conditions.(See TABLE 2) Current Limit accuracy is
+10/-15%.
THERMAL OPERATION
It is recommended the PWR-82520 be mounted to a heat sink.
This heat sink shall have the capacity to dissipate heat generat-
ed by the hybrid at all levels of current output, up to the peak
limit, while maintaining the case temperature limit as per FIG-
URE 10.
Accuracy = ± 5% (of
rated output)
-10
-8
-6
-4
-2
0
2
4
6
8
10
-10
-5
0
5
10
Current
(Amps)
Input Command (Volt), Inductive Load
FIGURE 9. LINEARITY CURVE
CURRENT MONITOR OUT (Pin 35)
This is a bipolar analog output voltage representative of motor
current. The Current Monitor Output will have the same scaling
as the Current Command input, 1.0 V/A. The output resistance
will be less than 100
.
BRUSH MOTOR OPERATION
The PWR-82520 can also be used as a brush motor controller
for current or voltage control in an H-Bridge configuration. The
PWR-82520 would be connected as shown in FIGURE 8. All
other connections are as shown in either FIGURE 12 or 13
depending on current or voltage mode operation. The Hall inputs
are wired per TABLE 4. A positive input command will result in
positive current to the motor out of Phase A.
TABLE 4. HALL INPUTS FOR H-BRIDGE CONTROLLER
H
L
ENABLE
—
Negative
Positive
COMMAND
IN
1
HA
1
HB
0
HC
INPUT
Z
L
H
PH A
OUTPUT
Z
PH B
Z
H
L
PH C
PHASE A
PHASE C
VBUS-
PHASE B
VBUS+
PHASE C
HALL C
HALL B
HALL A
+15V HALL SUPPLY OUT
HALL SUPPLY
GND
6
5
4
16
15
14
9
8
7
3
2
1
13
12
11
39
38
37
41
40
GND
+28V
+5V
FIGURE 8. BRUSH MOTOR HOOK UP
WARNING: The PWR-82520 does not have short circuit pro-
tection. The PWR-82520 must see a minimum of 100uH
inductive load or enough line-to-line resistance to limit the
output current to <10A at all times. Operation into a short or
a condition that requires excessive output current will damage
the hybrid.
TABLE 3. COMMUTATION TRUTH TABLE
INPUTS
OUTPUTS
ENABLE
DIR **
HA
HB
HC
PHASE A PHASE B PHASE C
L
CW
1
0
H
L
Z
L
CW
1
0
H
Z
L
CW
0
1
0
Z
H
L
CW
0
1
L
H
Z
L
CW
0
1
L
Z
H
L
CW
1
0
1
Z
L
H
L
CCW
1
0
1
Z
H
L
CCW
0
1
H
Z
L
CCW
0
1
H
L
Z
L
CCW
0
1
0
Z
L
H
L
CCW
1
0
L
Z
H
L
CCW
1
0
L
H
Z
H
—
Z
1=Logic Voltage >3.5 VDC, 0=Logic voltage < 0.7 VDC
** DIR is based on the convention shown in Figure 4. Actual
motor set up might be different.
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