 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AN009 Datasheet(PDF) 5 Page - Analog Intergrations Corporation |
|
||||||||||||||||||||||||||||||
AN009 Datasheet(HTML) 5 Page - Analog Intergrations Corporation |
|
|
5 / 6 page  AN009 5 For High Efficiency? For large Output Current? Operation Efficiency Stand by Efficiency For Small Ripple Voltage? Decreasing L Increasing L Select small dc inductance resistance Increase output capacitance, reduce ESR Using External Tr. AIC1639 Using Built-in Tr. AIC1638 UsingAIC1639, select smaller RB Using AIC1639, select larger RB Table 1. A quick table of selecting elements Notes: • For the circuit implementation, the external elements should be as close to IC as possible. • Make sure an effective grounding. If not so, increasing impedance relative to the ground would occur when switching current flows through ground pin. This can cause instability of IC. • The capacitor value should be larger than 10 µF and behave good frequency characteristics. Additionally, a voltage spike usually occurs when the transistor is switching on/off. It is suggested to use a capacitor with high voltage endurance, e.g., three times as the output voltage. • Schottky diode with low forward voltage VF is recommended • In switching regulator application, ripple voltage and spike noise is closely related to the magnitudes of coil and capacitor. Be sure the proper magnitude is used. • Make sure the power loss of switching transistor is within safe operating area (SOA). • The performance of AIC1638/1639 is strongly correlated to the selection of peripheral elements. The magnitudes of voltage, current and power loss should not exceed the safe nominal value. |
Similar Part No. - AN009 |
|
Similar Description - AN009 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
