 |
Os motores de busca de Datasheet de Componentes eletrônicos |
|
|
Os motores de busca de Datasheet de Componentes eletrônicos |
|
ML4810CS Folha de dados(PDF) 6 Page - Micro Linear Corporation |
|
||||||||||||||||||||||||||||||
ML4810CS Folha de dados(HTML) 6 Page - Micro Linear Corporation |
|
|
6 / 12 page  ML4810, ML4811 6 Figure 4. Switching Current and Pin 4 Voltage — Normal 100k 10k 1k FREQUENCY (Hz) 100 1k 10k 1M 100k 100nF 47nF 22nF 0nF 4.7nF 2.2nF 1nF 470pF 160 140 120 100 80 FREQUENCY (Hz) 10k 100k 1M 1.0nF 470pF Figure 7. Oscillator Timing Resistance vs Frequency Figure 8. Oscillator Deadtime vs Frequency OSCILLATOR The ML4811 oscillator charges the external capacitor (CT) with a current (ISET) equal to 3/RT. When the capacitor voltage reaches the upper threshold (Ramp Peak), the comparator changes state and the capacitor discharges to the lower threshold (Ramp Valley) through Q1. While the capacitor is discharging, Q2 provides a high pulse. A discharge of the oscillator con be initiated by applying a high level to the Sync pin. A short pulse of a frequency higher than the oscillator’s free running frequency can be used to synchronize the ML4811 to an external clock. The pulse can be equal to the desired deadtime (TD) or the deadtime can be determined by IDIS and CT, whichever is greater. I(1) V(1) I(1) V(1) Figure 5. Switching Current and Pin 4 Voltage — Load Fault The oscillator period can be described by the following relationship: tOSC = tRAMP + tDEADTIME where: t C Ramp Valley to Peak I RAMP SET = () and: t C Ramp Valley to Peak I DEADTIME Q = () 1 ISET IDIS ISET RT CLOCK OUT CT Q2 5V 3V SYNC Q1 CLOCK tD RAMP PEAK RAMP VALLEY CT 5 7 6 10 + – Figure 6. Simplified Oscilator Block Diagram and Timing |
Nº de peça semelhante - ML4810CS |
|
Descrição semelhante - ML4810CS |
|
|
|
Ligação URL |
| Privacy Policy |
| ALLDATASHEETPT.COM |
| ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |
Portuguese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
