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参数资料
| 型号： | A8904SLP-T |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.4 A, PDSO28 |
| 封装： | 1.20 MM HEIGHT, LEAD FREE, TSSOP-28 |
| 文件页数： | 15/18页 |
| 文件大小： | 736K |
| 代理商： | A8904SLP-T |
3-Phase Brushless DC Motor Controller/Driver
with Back EMF Sensing
A8904
6
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
CWD Current
ICWD
Charging, D26 = 0, D27 = 0
-9.0
-10
-11
μA
Charging, D26 = 0, D27 =1
-18
-20
-22
μA
Charging, D26 = 1 D27 = 0
-27
-30
-33
μA
Charging, D26 = 1, D27 =1
-36
-40
-44
μA
CWD Threshold Voltage
VTL
0.22
0.25
0.28
V
VTH
2.25
2.5
2.75
V
Max. FLL Oscillator Frequency
fOSC
20*
—
MHz
Oscillator High Duration
ton
20
—
ns
Oscillator Low Duration
toff
20
—
ns
Maximum Output Current
IOUT(MAX)
D3 = 0, D4 = 0, D28 = 0
1.0
1.2
1.4
A
D3 = 0, D4 = 1, D28 = 0
0.9
1.0
1.1
A
D3 = 1, D4 = 0, D28 = 0
500
600
700
mA
D3 = 1, D4 = 1, D28 = 0
—
250
—
mA
D3 = 0, D4 = 0, D28 = 1
500
600
700
mA
D3 = 0, D4 = 1, D28 = 1
415
500
585
mA
D3 = 1, D4 = 0, D28 = 1
—
300
—
mA
D3 = 1, D4 = 1, D28 = 1
—
125
—
mA
Transconductance Gain
gm
D28 = 1
210
250
290
mA/V
D28 = 0
420
500
580
mA/V
Centertap Resistors
RCT
5.0
10
13
k
Ω
Back-EMF Threshold with respect
—
5.0
20
37
mV
to VCTAP at FCOM transition
-5.0
-20
-37
mV
ELECTRICAL CHARACTERISTICS (continued) at TA = +25°C, VDD = 5.0 V
Negative current is dened as coming out of (sourcing) the specied device terminal.
* Operation at an oscillator frequency greater than the specied minimum value is possible but not waranteed.
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相关代理商/技术参数 |
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| A8905CLB | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING |
| A8906CLB | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING |
| A8909CLB | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING AND POWER DMOS OUTPUTS |
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