công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

AN2839 bảng dữ liệu(PDF) 3 Page - STMicroelectronics

tên linh kiện AN2839
Giải thích chi tiết về linh kiện  L6228 fully-integrated two-phase stepper motor driver
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2839 bảng dữ liệu(HTML) 3 Page - STMicroelectronics

  AN2839 Datasheet HTML 1Page - STMicroelectronics AN2839 Datasheet HTML 2Page - STMicroelectronics AN2839 Datasheet HTML 3Page - STMicroelectronics AN2839 Datasheet HTML 4Page - STMicroelectronics AN2839 Datasheet HTML 5Page - STMicroelectronics AN2839 Datasheet HTML 6Page - STMicroelectronics AN2839 Datasheet HTML 7Page - STMicroelectronics AN2839 Datasheet HTML 8Page - STMicroelectronics AN2839 Datasheet HTML 9Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 40 page
background image
AN2839
List of figures
Doc ID 15104 Rev 1
3/40
List of figures
Figure 1.
L6228 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2.
Supply voltage of high-side gate drivers versus supply voltage . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3.
Currents and voltages during the dead time at the beginning of the off time . . . . . . . . . . . . 5
Figure 4.
Voltage at the two outputs at the beginning of the off-time. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 5.
Typical application and layout suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6.
Two situations that must be avoided . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7.
Charge pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 8.
Sharing the charge-pump circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 9.
Obtaining a variable voltage through a PWM output of a µC . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10.
Logic input pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 11.
EN input pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 12.
Simplified schematic of the PWM current controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 13.
Output current regulation waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 14.
Typical off time vs. COFF for several values of ROFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 15.
Minimum on time vs. COFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 16.
Fast decay mode output stage configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 17.
Slow decay mode output stage configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 18.
PWM controller loses the current regulation due to minimum on time . . . . . . . . . . . . . . . . 18
Figure 19.
PWM controller loses the current regulation due to minimum on time - detail . . . . . . . . . . 18
Figure 20.
Simplified circuitry of the overcurrent detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 21.
Overcurrent operation: timing 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 22.
Overcurrent operation: timing 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 23.
Typical disable time vs. CEN for several values of REN . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 24.
Typical delay time vs. CEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 25.
IC dissipated power versus output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 26.
Maximum output current vs. selectable devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 27.
Power dissipation and thermal analysis with PractiSPINTM software . . . . . . . . . . . . . . . . . 24
Figure 28.
Torque instability in full-step mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 29.
Balanced half step for low torque ripple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 30.
Realizing half-step current shaping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 31.
Microstepping application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 32.
Microstepping reference voltages, output currents and CLOCK signal
. . . . . . . . . . . . . . 27
Figure 33.
Using fast decay during a high, negative current slope . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 34.
Application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 35.
PractiSPINTM PC software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 36.
PractiSPINTM ST7 demonstration board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 37.
EVAL6208N electrical schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 38.
EVAL6228QR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 39.
EVAL6228QR component placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 40.
EVAL6228QR top layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 41.
EVAL6228QR bottom layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 42.
EVAL6228QR electrical schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com