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参数资料
| 型号： | PWR-82342-100 |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
| 封装： | 2.25 X 2.1 INCH, 0.39 INCH HEIGHT, PACKAGE-18 |
| 文件页数： | 12/16页 |
| 文件大小： | 384K |
| 代理商： | PWR-82342-100 |
5
Data Device Corporation
www.ddc-web.com
PWR-82340/PWR-82342
H-06/05-0
An internal DC-DC converter supplies a floating output to each
of the two high-side drives. This provides a continuous high-side
gate drive even during a motor stall. Pin 11 (VLPO) supplies a
+15 V output, which can be used to power the internal logic when
system usage requires +15 V logic. The high- and low-side gate
drivers control the N-channel MOSFET or IGBT output stage.
The MOSFETs used in the PWR-82340 allow output switching
up to 50 kHz, while the high-speed IGBTs in the PWR-82342 can
switch at 25 kHz. A flyback diode parallels each output transis-
tor and controls the regenerative energy produced by the motor.
These fast recovery diodes have faster reverse switching times
than the intrinsic body diode of the MOSFETs used in the PWR-
82340. They also protect the IGBTs used in the PWR-82342
from exceeding their Emitter-to-Collector breakdown voltage.
Use of a copper case and solder attachment of the output tran-
sistors achieves a low thermal resistance of 0.85°C/W maximum.
Care should be taken to adequately heatsink these motor drives
to maintain a case temperature of +125°C. Junction tempera-
tures should not exceed +150°C. The PWR-82340/342 does not
have internal short circuit or overcurrent protection which, if
required, must be added externally to the hybrid.
BIAS VOLTAGES
The PWR-82340 and PWR-82342 motor drive hybrids only
require a single power supply for operation. The hybrid gener-
ates two independent, floating supplies, which eliminates the
need for external bias voltages for each phase.
In order for the internal power supply to generate these voltages,
the input bias voltage (Vb) must be from +15 to +50 Vdc. In most
avionic systems this can be accomplished by connecting the Vb
pin to the MIL-STD-704D, +28 Volt bus. See FIGURE 3A.
If the system bus voltage is greater than +50 Vdc (and a lower
voltage is not available), then the Vb pin and Vz pin can be tied
together with an external power resistor (Rb) and connected
from these pins to the system power bus. See FIGURE 3B.
See figures 4 and 5 for bias resistor characteristics.
If additional power dissipation in Rb is a concern, FIGURE 3C
shows a more efficient design, using a low-power resistor (R0)
and an additional transistor. To determine the proper resistor to
use, refer to FIGURE 6.
If there is another voltage available in the system in the +15 to
+50 VDC range, then this voltage can be directly connected to
the Vb pin of the hybrid. In any case, a 0.01 mf decoupling capac-
itor (Cb) must be connected between Vb (pin 8) and GND.
≤ ≤
FIGURE 3. CONNECTION TO BUS VOLTAGE TO DEVELOP PROPER INPUT BIAS VOLTAGE
VCC (VOLTS)
R
b
(O
HMS)
6000
5000
4000
3000
2000
1000
0
40
60
80
100
120
140
160
180
200
VCC (VOLTS)
R
b
(K
OHMS)
50 100 150 200 250 300 350 400 450 500
0.1
1
10
100
FIGURE 4A. BIAS RESISTOR VALUE VS. BUS
VOLTAGE PWR-82340
FIGURE 4B. BIAS RESISTOR VALUE VS. BUS
VOLTAGE PWR-82342
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PDF描述 |
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| PWR-82342-300 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
| PWR-82340-120 | BRUSHLESS DC MOTOR CONTROLLER, 50 A, UFM18 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PWR-82342-110 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC Motor Controller/Driver |
| PWR-82342-120 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC Motor Controller/Driver |
| PWR-82342-300 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC Motor Controller/Driver |
| PWR-82400-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC-to-DC Voltage Converter |
| PWR-82400-110 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC-to-DC Voltage Converter |
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