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參數(shù)資料
| 型號： | ML4411A |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Sensorless Spindle Motor Controller(無傳感器主軸電機(jī)控制器) |
| 中文描述： | 傳感器主軸電機(jī)控制器（無傳感器主軸電機(jī)控制器） |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 241K |
| 代理商： | ML4411A |
ML4411/ML4411A
2
REV. 1.0 10/10/2000
PIN CONFIGURATION
1
2
GND
P1
Signal and Power Ground
Drives the external P-channel
transistor driving motor PH1
3
P2
Drives the external P-channel
transistor driving motor PH2
4
V
CC2
12V power and power for the
braking function
Drives the external P-channel
transistor driving motor PH3
5
P3
6
C
OTA
Compensation capacitor for linear
motor current amplifier loop
7
C
BRK
Capacitor which stores energy to
charge N-channel MOSFETs for
braking with power off.
A logic 0 on this pin turns off the N
and P outputs and causes the TACH
comparator output to appear on TACH
OUT
9-11 N1, N2 N3 Drives the external N-channel
MOSFETs for PH1, PH2, PH3
8
DIS PWR
12
I
SENSE
C
OS
Motor current sense input
Timing capacitor for fixed off-time
PWM current control
Timing capacitor for VCO
13
14
C
VCO
VCO/TACH Logic Output from VCO or TACH
OUT
comparator
15
16
RESET
Input which holds VCO off and sets the
IC to the RESET condition
A “0” output indicates 5V or 12V is
under-voltage. This is an open
collector output with a 4.5k
pull-up
to +5V
ENABLE E/A A ”1” logic input enables the error
amplifier and closes the back-EMF
feedback loop
17
PWR FAIL
18
19
20
21
+5V
RC
I
RAMP
5V power supply input
VCO loop filter components
Current into this pin sets the initial
acceleration rate of the VCO during
start-up
22
23
24
PH1
PH2
PH3
Motor Terminal 1
Motor Terminal 2
Motor Terminal 3
25
V
CC
12V power supply. Terminal which is
sensed for power fail
A ”0” activates the braking circuit
26
BRAKE
27
I
LIMIT
Sets the threshold for the PWM
comparator
Current Command for Linear Current
amplifier
28
I
CMD
PIN NAME
FUNCTION
PIN NAME
FUNCTION
PIN DESCRIPTION
ML4411
28-Pin SOIC (S28W)
GND
P1
P2
VCC2
P3
C
OTA
C
BRK
DIS PWR
N1
N2
N3
I
SENSE
C
OS
C
VCO
I
CMD
I
LIMIT
BRAKE
VCC
PH3
PH2
PH1
I
RAMP
RC
+5V
ENABLE E/A
PWR FAIL
RESET
VCO/TACH OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TOP VIEW
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML4411 | Sensorless Spindle Motor Controller(無傳感器主軸電機(jī)控制器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4411ACS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ML4411CS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless Spindle Motor Controller |
| ML44126N | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:FOR OPTICAL INFORMATION SYSTEMS |
| ML44126R | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:FOR OPTICAL INFORMATION SYSTEMS |
| ML4420 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:ENHANCED SENSORLESS BLDC MOTOR CONTROLLER |
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