參數資料
型號: L9935
廠商: 意法半導體
元件分類: 基準電壓源/電流源
英文描述: TWO-PHASE STEPPER MOTOR DRIVER
中文描述: 兩相步進電機驅動器
文件頁數: 6/19頁
文件大?。?/td> 159K
代理商: L9935
I
A
1.8
1.1
1
0.8
0.6
0.4
0.2
0.075
00
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
I
HL
I
LH
I
LL
typical current limitation of high side transistor
limit recommended for usual application
R
suggested range of operation
D99AT418
Figure 2. Typicalaverage loadcurrentdependence on R
Sense
.
DRIVE
LOGIC
CURRENT
LOGIC
bit3, (bit0)
bit5, (bit2)
bit4, (bit1)
CURRENT ADJUST
INHIBIT
ON HH
LOAD
+
-
τ
D
11
M
11
D
12
M
12
D
11
A
1
A
2
V
S
R
1
R
EXTERNAL
SENSE RESISTOR
D
12
COMP1
D
22
D
21
D
22
M
22
D
21
M
21
D99AT419
Full Bridge Function
Figure 3. Displaysa full bridge including the current sense circuit.
L9935
6/19
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L9937 FULL BRIDGE MOTOR DRIVER
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L9950 DOOR ACTUATOR DRIVER
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