 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
LP8543 bảng dữ liệu(PDF) 19 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
LP8543 bảng dữ liệu(HTML) 19 Page - Texas Instruments |
|
|
19 / 40 page  100 0 DISPLAY1 CONFIG 4 5 1 3 6 1 3 5 7 25 50 75 1-4 1-5 1-6 1-7 4 5 6 1 2 3 1 2 3 2 4 2 4 LP8543 www.ti.com SNVS604D – AUGUST 2009 – REVISED MARCH 2013 Phase shift frequency can either be the same as the PWM frequency or a lower frequency can be selected with <PHASE_SHIFT_FREQ[1:0]> EEPROM bits. At highest 19.5 kHz PSPWM frequency, the boost will use a constant voltage based on the highest VF string because of timing constraints of the high PWM frequency. PSPWM is enabled by default, but it can be disabled by setting <DISABLE_PS> EEPROM bit to 1. Two PSPWM modes are available. PSPWM mode is selected with <PWM_MODE> EEPROM bit. Difference between modes is in the PWM frequencies available. PWM and PSPWM frequency settings are shown in Table 4. Number of strings simultaneously on in PSPWM mode with different PWM values and different output configurations is shown in the following diagram. Figure 14. Number of Simultaneously Active Strings Table 4. PSPWM Frequency Selection in EEPROM Registers (N = number of strings used) PWM_MODE = 0 PWM_MODE = 1 PWM_FREQ[2:0] + PWM Frequency Shift Frequency Output Frequency Output Frequency Shift Frequency PSPWM_FREQ[1:0] (Hz) (Hz) (Hz) (Hz) (Hz) 00000 992 992 992/N 229 229 x N 00001 992 496 496/N 305 305 x N 00010 992 248 248/N 381 381 x N 00011 992 124 124/N 458 458 x N 00100 1526 1526 1526/N 534 534 x N 00101 1526 763 763/N 610 610 x N 00110 1526 382 382/N 687 687 x N 00111 1526 191 191/N 763 763 x N 01000 1983 1983 1983/N 839 839 x N 01001 1983 993 993/N 916 916 x N 01010 1983 496 496/N 992 992 x N 01011 1983 248 248/N 1068 1068 x N 01100 2441 2441 2441/N 1144 1144 x N 01101 2441 1221 1221/N 1221 1221 x N 01110 2441 610 610/N 1297 1297 x N 01111 2441 305 305/N 1373 1373 x N 10000 2974 2974 2974/N 1450 1450 x N 10001 2974 1487 1487/N 1526 1526 x N 10010 2974 744 744/N 1602 1602 x N 10011 2974 372 372/N 1678 1678 x N Copyright © 2009–2013, Texas Instruments Incorporated Submit Documentation Feedback 19 Product Folder Links: LP8543 |
|
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 |
| 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 |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
