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參數(shù)資料
| 型號(hào)： | ML4423 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 1, 2, or 3-Phase Variable Speed AC Motor Controller(一、二或三相可變速交流電機(jī)控制器) |
| 中文描述： | 1，2或3相交流電機(jī)調(diào)速控制器（一，二或三相可變速交流電機(jī)控制器） |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 235K |
| 代理商： | ML4423 |
ML4423
REV. 1.0 10/10/2000
3
PIN DESCRIPTION
PIN
NAME
FUNCTION
1
FB A
Differential input which, in
conjunction with FB C, feeds back the
voltage applied across motor winding
A-C.
2
FB C
Input which feeds back the voltage
applied to motor winding C. Reference
voltage for windings A and B.
3
FB B
Differential input which, in
conjunction with FB C, feeds back the
voltage applied across motor winding
B-C.
4
V
MIN
The voltage on this pin sets the
minimum sinewave amplitude at low
speeds.
5
V
SPEED
The voltage on this pin sets the
frequency and amplitude of the
sinewaves generated at SINE
A
and
SINE
B
.
6
R
SPEED
An external resistor to ground provides
a variable current to the sinewave
generator. The current is proportional
to V
SPEED
.
7
V
REF
8V reference output which can be
used for setting V
SPEED
and V
MIN
.
8
R
REF
An external resistor to ground provides
a constant current used for setting the
PWM frequency in conjunction with
C
T
.
9
R
DT
An external resistor to ground sets the
deadtime in the output stage to
prevent cross-conduction in the power
devices.
10
SINE A-C
A test output for observing the
internally generated sinewave used for
motor winding A-C.
11
SINE B-C
A test output for observing the
internally generated sinewave used for
motor winding B-C.
12
C
O
An external capacitor to ground sets
the sinewave frequency in conjunction
with V
SPEED
and R
SPEED
.
PIN
NAME
FUNCTION
13
C
T
An external capacitor to ground sets
the PWM triangle frequency in
conjunction with the external resistor
R
REF
.
14
COAST
A logic low input causes all output
drive transistors to turn OFF. An
internal pull-up drives
COAST
to V
DD
if left unconnected.
15
F/
R
A logic high input causes phase A to
lead phase B, while a logic low input
causes phase A to lag phase B. An
internal pull-up drives F/
R
to V
DD
if
left unconnected.
16
I
SENSE
Motor current sense input.
17
GND
Signal and power ground.
18
3PH
/2PH
Leaving this pin unconnected selects
3-phase drive. Connecting this pin to
V
DD
selects single/2-phase drive.
19
LB
Low side drive output for phase B.
20
LC
Low side drive output for phase C.
21
LA
Low side drive output for phase A.
22
HB
High side drive output for phase B.
23
HC
High side drive output for phase C.
24
HA
High side drive output for phase A.
25
5V/12V
SELECT
Input to select 5V or 12V output drive.
Leaving this pin unconnected selects
5V output drive levels at the driver
outputs. Connecting this pin to V
CC
selects 12V output drive levels at the
driver outputs.
26
V
DD
12V power supply input.
27
C
GM1
An external capacitor to ground sets a
pole in the feedback loop.
28
C
GM2
An external capacitor to ground sets a
pole in the feedback loop.
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相關(guān)代理商/技術(shù)參數(shù) |
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| ML4423CP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4423CS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4423IP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4423IS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4425 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless BLDC Motor Controller |
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