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參數(shù)資料
| 型號(hào)： | ML4425CS |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Sensorless BLDC Motor Controller |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.05 A, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 167K |
| 代理商： | ML4425CS |
PRODUCT SPECIFICATION
ML4425
REV. 1.0.2 7/2/01
3
Absolute Maximum Ratings
Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum
ratings are stress ratings only and functional device operation is not implied.
Operating Conditions
16
17
18
R
VCO
C
AT
An resistor to GND sets up a current proportional to the input voltage of the VCO.
A capacitor to GND sets the time that the controller stays in the align mode.
This output goes low when V
DD
drops below the UVLO threshold, and indicates that
all output drivers have been disabled.
A capacitor to GND sets the time that the controller stays in the ramp mode.
Output of the back-EMF sampling circuit and input to the VCO. An RC network
connected to SPEED FB sets the compensation for the PLL loop formed by the
back-EMF sampling circuit, the VCO, and the commutation state machine.
A capacitor to between C
RR
and SPEED FB sets the ramp rate (acceleration) of the
motor when the controller is in ramp mode.
The motor feedback voltage from phase A is monitored through a resistor divider for
back-EMF sensing at this pin.
The motor feedback voltage from phase B is monitored through a resistor divider for
back-EMF sensing at this pin.
The motor feedback voltage from phase C is monitored through a resistor divider for
back-EMF sensing at this pin.
A logic low input activates motor braking by shutting off the high-side output drivers
and turning on the low-side output drivers.
A capacitor to GND sets the time that the low-side output drivers remain off after
I
SENSE
exceeds its threshold .
An 137k
resistor to GND sets a current proportional to V
the internal bias currents except for the VCO.
Signal and power ground.
UV FAULT
19
20
C
RT
SPEED FB
21
C
RR
22
FB A
23
FB B
24
FB C
25
BRAKE
26
C
IOS
27
R
REF
REF
that is used to set all
28
GND
Parameter
V
DD
Logic Inputs (SPEED FB, BRAKE)
All Other Inputs and Outputs
Output Current (LA, LB, LC, HA, HB, HC
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering 10 sec.)
Thermal Resistance (
28-Pin Narrow PDIP
28-Pin SOIC
Min.
Max.
14
7
+ 0.3
±50
150
150
260
Units
V
V
V
mA
°
C
°
C
°
C
GND
–
0.3
GND
–
0.3
V
DD
)
-65
θ
JA
)
48
75
°
C/W
°
C/W
Parameter
Temperature Range
ML4425CX
ML4425IX
V
DD
Min.
Max.
Units
0
–
40
10.8
70
85
13.2
°
C
°
C
V
Pin Description
(continued)
Pin
Name
Function
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML4425IP | Sensorless BLDC Motor Controller |
| ML4425IS | Sensorless BLDC Motor Controller |
| ML4426 | Bi-directional Sensorless BLDC Motor Controller(雙向無傳感無刷直流電機(jī)控制器) |
| ML4428 | 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) |
| ML4761 | Adjustable Output Low Voltage Boost Regulator(可調(diào)輸出低壓差的升壓穩(wěn)壓器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4425CSX | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 BLDC Motor Control Sensorless RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML4425IH | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless BLDC Motor Controller |
| ML4425IP | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 BLDC Motor Control Sensorless RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML4425IS | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 BLDC Motor Control Sensorless RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML4425ISX | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 BLDC Motor Control Sensorless RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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