參數(shù)資料
型號(hào)： A8905CLB
廠商： Allegro MicroSystems, Inc.
英文描述： 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING
中文描述： 3相無(wú)刷直流電動(dòng)機(jī)控制器/驅(qū)動(dòng)器，反電動(dòng)勢(shì)遙感
文件頁(yè)數(shù)： 3/12頁(yè)
文件大小： 163K
代理商： A8905CLB
8905
3-PHASE BRUSHLESS DC
MOTOR CONTROLLER/DRIVER
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C, V
DD
= 5.0 V
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Logic Supply Voltage
V
DD
Operating
4.5
5.0
5.5
V
Logic Supply Current
I
DD
Operating
—
7.5
10
mA
Sleep Mode
—
—
1.5
mA
Load Supply Voltage
V
BB
Operating
4.5
—
14
V
Thermal Shutdown
T
J
—
165
—
°
C
Thermal Shutdown Hys.
T
J
—
20
—
°
C
Output Drivers
Output Leakage Current
I
DSX
V
BB
= 14 V, V
OUT
= 14 V
—
1.0
300
μ
A
V
BB
= 14 V, V
OUT
= 0 V
—
-1.0
-300
μ
A
Total Output ON Resistance
r
DS(on)
I
OUT
= 600 MA
—
1.1
1.4
Output Sustaining Voltage
V
DS(sus)
V
BB
= 14 V, I
OUT
= I
OUT
(MAX), L = 3 mH
14
—
—
V
Clamp Diode Forward Voltage
V
F
I
F
= 1.0 A
—
1.25
1.5
V
Control Logic
Logic Input Voltage
V
IN(0)
INDEX, RESET, CLK,
-0.3
—
1.5
V
V
IN(1)
CHIP SELECT, OSC, BRAKE
3.5
—
5.3
V
Logic Input Current
I
IN(0)
V
IN
= 0 V
—
—
-0.5
μ
A
I
IN(1)
V
IN
= 5.0 V
—
—
1.0
μ
A
DATA Output Voltage
V
OUT(0)
I
OUT
= 500
μ
A
—
—
1.5
V
V
OUT(1)
I
OUT
= -500
μ
A
3.5
—
—
V
C
ST
Current
I
CST
Charging
14
20
28
μ
A
Discharging
-14
-20
-28
μ
A
C
ST
Threshold
V
CSTH
2.1
2.5
2.9
V
V
CSTL
—
500
—
mV
Filter Current
I
FILTER
Charging
7.0
10
15
μ
A
Discharging
-7.0
-10
-15
μ
A
Leakage, V
FILTER
= 2.5 V
—
5.0
—
nA
C
D
Current
I
CD
Charging
14
22
28
μ
A
Discharging
-26
-35
-66
μ
A
C
D
Current Matching
—
I
CD(DISCHRG)
/I
CD(CHRG)
1.7
2.2
2.3
—
C
D
Threshold
V
CD
—
2.5
—
V
C
WD
Current
I
CWD
Charging
14
22
28
μ
A
Continued next page …
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