參數(shù)資料
型號: L8150
廠商: 意法半導(dǎo)體
英文描述: Brushless motor predriver
中文描述: 無刷電機(jī)預(yù)驅(qū)動
文件頁數(shù): 5/37頁
文件大?。?/td> 573K
代理商: L8150
L8150
List of figures
5/37
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Kval control by VSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
External circuit for Vsp control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
16 bit counter operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Smooth drive pattern (forward). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Phase shift vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Smooth Drive Pattern (Reverse). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Rectangular drive pattern (forward) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Rectangular Drive Pattern (Reverse) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Filtering circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Filter Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Duty cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Startup sequence forced by FS comparator, assuming the motor is not rotating. . . . . . . . 24
Startup sequence forced by FS comparator, supposing the motor rotating quickly
in the direction imposed by the FR signal: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Startup sequence forced by FS comparator, supposing the motor rotating quickly
in the direction opposite to that imposed by the FR signal . . . . . . . . . . . . . . . . . . . . . . . . . 26
Startup sequence forced by FS comparator, supposing the motor rotating too quickly . . . 27
Startup sequence forced by SD, supposing the motor stopped . . . . . . . . . . . . . . . . . . . . . 28
Startup sequence forced by SD, supposing the motor rotating quickly
in the direction imposed by the FR signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Startup sequence forced by SD, supposing the motor rotating quickly
in the direction not imposed by the FR signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Startup sequence forced by SD signal, supposing the motor rotating too quickly . . . . . . . 30
Basic motor control circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3 phases motor control circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Pins: TSD, OV, SDT, INTinN, INTinP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pins: TO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pins: RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pins: INTout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pins: OSC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pins: FG, DM, FAULT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
ESD clamping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Recirculation diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Pins: FR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Pins: HWN, HWP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Pins: HUN, HUVP, HVN, HVP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Pins: UH, UL, VH, VL, WH, WL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
SO-28 Mechanical data & package dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
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