 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
DSPIC33EP128GS708 датащи(PDF) 20 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
DSPIC33EP128GS708 датащи(HTML) 20 Page - Microchip Technology |
|
|
20 / 484 page  dsPIC33EPXXXGS70X/80X FAMILY DS70005258C-page 20 2016-2018 Microchip Technology Inc. 2.7 Oscillator Value Conditions on Device Start-up If the PLL of the target device is enabled and configured for the device start-up oscillator, the maximum oscillator source frequency must be limited to 3 MHz < FIN < 5.5 MHz to comply with device PLL start-up conditions. This means that if the external oscillator frequency is outside this range, the application must start up in the FRC mode first. The default PLL settings, after a POR with an oscillator frequency outside this range, will violate the device operating speed. Once the device powers up, the application firmware can initialize the PLL SFRs, CLKDIV and PLLFBD, to a suitable value, and then perform a clock switch to the Oscillator + PLL clock source. Note that clock switching must be enabled in the device Configuration Word. 2.8 Unused I/Os Unused I/O pins should be configured as outputs and driven to a logic low state. Alternatively, connect a 1k to 10k resistor between VSS and unused pins, and drive the output to logic low. 2.9 Targeted Applications • Power Factor Correction (PFC) - Interleaved PFC - Critical Conduction PFC - Bridgeless PFC • DC/DC Converters - Buck, Boost, Forward, Flyback, Push-Pull - Half/Full-Bridge - Phase-Shift Full-Bridge - Resonant Converters • DC/AC - Half/Full-Bridge Inverter - Resonant Inverter Examples of typical application connections are shown in Figure 2-4 through Figure 2-6. FIGURE 2-4: INTERLEAVED PFC VAC VOUT+ PGA/ADC Channel PWM ADC PWM |VAC| k4 k3 FET dsPIC33EPXXXGS70X/80X Driver VOUT- ADC Channel PGA/ADC Channel Channel PGA/ADC Channel k2 FET Driver k1 |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
