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參數(shù)資料
| 型號(hào)： | MSK4462 |
| 廠商： | MS KENNEDY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 30A,75V,3 Phase MOSFET Brushless Motor Controller(30A,75V 3相位MOSFET無(wú)電刷電機(jī)控制器) |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 41 A, XMA31 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 516K |
| 代理商： | MSK4462 |
BRAKE -
is a pin for commanding the output bridge
into a motor BRAKE mode. When pulled low, nor-
mal operation commences. When pulled high, the
3 high side bridge switches turn off and the 3 low
side bridge switches turn on, causing rapid decel-
eration of the motor and will cease motor operation
until pulled high again. Logic levels for this input
are TTL compatible. It is internally pulled high.
DIS -
is a pin for externally disabling the output
bridge. A TTL logic low will enable the bridge and a
TTL logic high will disable it. It is internally pulled
up by a 100 μAmp pullup.
60/120-
is a pin for selecting the orientation of the
commutation scheme of the motor. A high state
will produce 60/300 degree commutation, whereas
a low state will produce 120/240 degree commuta-
tion. Logic levels for this input are TTL compatible.
It is internally pulled high.
APPLICATION NOTES CONTINUED
4
VOLTAGE REGULATOR POWER DISSIPATION -
To figure volt-
age regulator power dissipation and junction temperature, use
the following as an example:
Given:
V+ = 28V, MSK 4462 +15V IQ = 85mA, -15V IQ = 40mA.
External Loads: +15V = 25 mA, -15V = 25 mA
-15V Converter Efficiency = 50%
P
DISS
due to +15V IQ,85 mA x 13V = 1.11 W
P
DISS
due to -15V IQ, (40 mA / 0.5) x 13V = 1.04 W
P
DISS
due to +15V Ext load, 25 mA x 13V = 325 mW
P
DISS
due to -15V Ext load, (25 mA / 0.5) x 13V = 650 mW
P
DISS
Total = 1.11 W + 1.04 W + 325 mW+650 mW=3.13W
3.13 W x 7°C/W = 22°C RISE above case temperature
150°C - 22°C =128°C Case Temperature can go up to125°C
maximum from absolute maximum table
To lower power dissipation in the regulator, a dropping resistor
can be added in series from V+ to the +REG IN pin. Using the
above example, if V+ = 39V and there is no dropping resistor,
total power dissipation rises to about 5.76 watts. Temperature
rise is now 40°C above case temperature, limiting maximum
case temperature to 110°C. By adding a dropping resistor to
lower the +REG IN pin voltage to 24.1V, the regulator power
dissipation is lowered to 2.19 watts. Temperature rise is now
15°C above case temperature, allowing a maximum case tem-
perature all the way to +125°C.
Rev. D 10/00
ALTERNATE REGULATOR CONNECTION OPTIONS
By connecting the regulators in different ways, various capabilities can be obtained.
1.
Higher than 55 volt operation -
For operation at higher than 55 volt motor bus voltages, there are three options available:
相關(guān)PDF資料 |
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| MSK4470 | 10A,500V,3 Phase IGBT Brushless Motor Controller(10A,500V 3相位IGBT無(wú)電刷電機(jī)控制器) |
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| MSK5000BZS | DUAL POSITIVE/NEGATIVE, 3 AMP, LOW DROPOUT FIXED VOLTAGE REGULATORS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSK4462D | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:30 AMP, 75V, 3 PHASE MOSFET BRUSHLESS MOTOR CONTROLLER |
| MSK4462S | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:30 AMP, 75V, 3 PHASE MOSFET BRUSHLESS MOTOR CONTROLLER |
| MSK4462U | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:30 AMP, 75V, 3 PHASE MOSFET BRUSHLESS MOTOR CONTROLLER |
| MSK4470 | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:10 AMP, 500V, 3 PHASE IGBT BRUSHLESS MOTOR CONTROLLER |
| MSK4470D | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:10 AMP, 500V, 3 PHASE IGBT BRUSHLESS MOTOR CONTROLLER |
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