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

X  

Preview PDF HTML

DRV8434E/P bảng dữ liệu(PDF) 21 Page - Texas Instruments

tên linh kiện DRV8434E/P
Giải thích chi tiết về linh kiện  DRV8434E/P Dual H-Bridge Motor Driver With Integrated Current Sense and Smart Tune Technology
PDF  48 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  TI [Texas Instruments]
Trang chủ  http://www.ti.com
Logo TI - Texas Instruments

DRV8434E/P bảng dữ liệu(HTML) 21 Page - Texas Instruments

Back Button DRV8434E/P Datasheet HTML 17Page - Texas Instruments DRV8434E/P Datasheet HTML 18Page - Texas Instruments DRV8434E/P Datasheet HTML 19Page - Texas Instruments DRV8434E/P Datasheet HTML 20Page - Texas Instruments DRV8434E/P Datasheet HTML 21Page - Texas Instruments DRV8434E/P Datasheet HTML 22Page - Texas Instruments DRV8434E/P Datasheet HTML 23Page - Texas Instruments DRV8434E/P Datasheet HTML 24Page - Texas Instruments DRV8434E/P Datasheet HTML 25Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 48 page
background image
7.3.3.4 Smart tune Ripple Control
t
BLANK
t
OFF
t
DRIVE
I
TRIP
t
BLANK
t
DRIVE
t
OFF
t
BLANK
t
DRIVE
I
TRIP
t
BLANK
t
DRIVE
t
OFF
I
VALLEY
t
OFF
t
OFF
t
BLANK
t
DRIVE
t
BLANK
t
DRIVE
I
VALLEY
t
BLANK
t
DRIVE
t
OFF
Figure 7-8. Smart tune Ripple Control Decay Mode
Smart tune Ripple Control operates by setting an IVALLEY level alongside the ITRIP level. When the current level
reaches ITRIP, instead of entering slow decay until the tOFF time expires, the driver enters slow decay until IVALLEY
is reached. Slow decay operates similar to mode 1 in which both low-side MOSFETs are turned on allowing the
current to recirculate. In this mode, tOFF varies depending on the current level and operating conditions.
This method allows much tighter regulation of the current level increasing motor efficiency and system
performance. Smart tune Ripple Control can be used in systems that can tolerate a variable off-time regulation
scheme to achieve small current ripple in the current regulation.
7.3.3.5 Blanking time
After the current is enabled (start of drive phase) in an H-bridge, the current sense comparator is ignored for a
period of time (tBLANK) before enabling the current-sense circuitry. The blanking time also sets the minimum drive
time of the PWM. The blanking time is approximately 1 µs.
7.3.4 Charge Pump
A charge pump is integrated to supply a high-side N-channel MOSFET gate-drive voltage. The charge pump
requires a capacitor between the VM and VCP pins to act as the storage capacitor. Additionally a ceramic
capacitor is required between the CPH and CPL pins to act as the flying capacitor.
www.ti.com
DRV8434E
SLOSE49 – NOVEMBER 2020
Copyright © 2020 Texas Instruments Incorporated
Submit Document Feedback
21
Product Folder Links: DRV8434E



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 41 42 43 44 45 46 47 48


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