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參數(shù)資料
| 型號(hào)： | ML4428 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Sensorless Smart-Start BLDC PWM Motor Controller(無傳感智能啟動(dòng)無刷直流PWM電機(jī)控制器) |
| 中文描述： | 智能傳感器啟動(dòng)無刷電機(jī)控制器的PWM（無傳感智能啟動(dòng)無刷直流脈寬調(diào)制電機(jī)控制器） |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 151K |
| 代理商： | ML4428 |
ML4428
12
REV. 1.0 11/17/2000
Output Drivers
The P-channel drivers are emitter follower type with 5mA
pull down currents. The N-channel drivers are totem pole
with a 1200y resistor in series with the pull up device.
Crossover comparators are employed with each driver
pair, eliminating the potential of crossover, and hence,
shoot-through currents.
Braking
When
BRAKE
is pulled low all 3 P-channel drivers will
be turned off and all 3 N-channel drivers will be turned
on.
Power Fail
In the event of a power fail, i.e. V
CC
falls below 8.75V all
6 output drivers will be turned off.
Higher Voltage Motor Drive
The ML4428 can be used to drive higher voltage motors
by means of level shifters to the high side drive
transistors. This can be accomplished by using dedicated
high side drivers for applications greater than 80V or a
simple NPN level shift as shown in Figure 9 for
applications below 80V. Figure 10 shows how to interface
to the IR2118, high side drivers from I.R. This allows
driving motors up to 600V. The
BRAKE
pin can be pulsed
prior to startup with an RC circuit. This charges the
bootstrap capacitors for three inexpensive high side
drivers
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4428CP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless Smart-Start⑩ BLDC PWM Motor Controller |
| ML4428CS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless Smart-Start⑩ BLDC PWM Motor Controller |
| ML4428IP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless Smart-Start⑩ BLDC PWM Motor Controller |
| ML4428IS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless Smart-Start⑩ BLDC PWM Motor Controller |
| ML4428直流電機(jī)控制芯片 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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