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參數(shù)資料
| 型號(hào)： | A8902 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Three-Phase Brushless DC Motor Controller/ Driver(用于5V或12V硬盤驅(qū)動(dòng)器的三相無刷直流電機(jī)控制器/驅(qū)動(dòng)器) |
| 中文描述： | 三相無刷直流電動(dòng)機(jī)控制器/驅(qū)動(dòng)器（用于5V的或12V的硬盤驅(qū)動(dòng)器的三相無刷直流電機(jī)控制器/驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 156K |
| 代理商： | A8902 |
8902–A
3-PHASE BRUSHLESS DC
MOTOR CONTROLLER/DRIVER
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
SERIAL PORT TIMING CONDITIONS
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
C
WD
Current
I
CWD
Charging
-9.0
-10
-11
μ
A
C
WD
Threshold Voltage
V
TL
0.22
0.25
0.28
V
V
TH
2.25
2.5
2.75
V
Max. FLL Oscillator Frequency
f
OSC
V
DD
= 5.0 V, T
A
= 25
°
C
12
—
—
MHz
I
OUT
(MAX)
—
D3 = 0, D4 = 0
1.0
1.2
1.4
A
D3 = 0, D4 = 1
0.9
1.0
1.1
A
D3 = 1, D4 = 0
0.5
0.6
0.7
A
D3 = 1, D4 = 1
—
250
—
mA
BRAKE Threshold
V
BRK
1.5
1.75
2.0
V
BRAKE Hysteresis Current
I
BRKL
V
BRK
= 750 mV
—
20
—
μ
A
Transconductance Gain
g
m
0.42
0.50
0.58
A/V
Centertap Resistors
R
CT
5.0
10
13
k
Back-EMF Hysteresis
—
V
BEMF
- V
CTAP
at
5.0
20
37
mV
FCOM Transition
-5.0
-20
-37
mV
ELECTRICAL CHARACTERISTICS continued
DATA
CLOCK
Dwg. WP-019
A
C
B
D
C
D
CHIP SELECT
E
A.
Minimum CHIP SELECT setup time before CLOCK rising edge..........
100 ns
B.
Minimum CHIP SELECT hold time after CLOCK rising edge...............
150 ns
C.
Minimum DATA setup time before CLOCK rising edge........................
150 ns
D.
Minimum DATA hold time after CLOCK rising edge.............................
150 ns
E.
Minimum CLOCK low time before CHIP SELECT..................................
50 ns
F.
Maximum CLOCK frequency ..............................................................
3.3 MHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A8902CLBA | 制造商:Allegro MicroSystems LLC 功能描述:DC Motor Driver 24-Pin SOIC(300mil) |
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| A8902SLB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC Motor Controller/Driver |
| A8903SLB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC Motor Controller/Driver |
| A8904 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING |
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