 |
Motore di ricerca datesheet componenti elettronici |
|
|
Motore di ricerca datesheet componenti elettronici |
|
TS5201 Scheda tecnica(PDF) 5 Page - Taiwan Semiconductor Company, Ltd |
|
||||||||||||||||||||||||||||||
TS5201 Scheda tecnica(HTML) 5 Page - Taiwan Semiconductor Company, Ltd |
|
|
5 / 6 page  TS5201 series 5-6 2005/08 rev. C Application Information (continues) Thermal Characteristics TS5201 series is designed to provide 200mA of continuous current in a very small package. Maximum power dissipation can be calculated based on the output current and the voltage drop across the part. To determine the maximum power dissipation of the package, use the junction-ambient thermal resistance of the device and the following basic equation: Pd(max) = [ Tj(max) – Ta ] /Θja Tj(max) is the maximum junction temperature of the die(125 oC), and Ta is the ambient operating temperature. Θja is layout dependent, the actual power dissipation of the regulator circuit can be determined using the equation: Pd = ( Vin – Vout ) * Iout + Vin * Ignd Substituting Pd(max) for Pd and solving for the operating conditions that are critical to the application will give the maximum operating conditions for the regulator circuit. For example, when operating the TS5201CX533 at room temperature with a minimum footprint layout, the maximum input voltage for a set output current can be determined as follows: Pd(max) = (125 oC – 25oC) / 220oC/W Pd(max) = 455mW The junction to ambient thermal resistance for the minimum footprint is 220 oC/W, the maximum power dissipation must not be exceeded for proper operation. Using the output voltage of 3.3V and an output current of 200mA, the maximum input voltage can be determined. Formt eh electrical characteristics table, the maximum ground current for 200mA output current is 2.5mA. 445mW = ( Vin – 3.3V ) * 200mA + Vin * 2.5mA 445mW = Vin * 200mA – 3.3 * 200mA + Vin * 2.5mA 445mW = Vin * 200mA – 495mW + Vin * 2.5mA 950mW = Vin * 152.5mA Vin(max) = 6.23v Therefore, a 3.3V application at 200mA of output current can accept a maximum input voltage of 6.23V in a SOT-25 package. Noise Reduction Capacitors On adjustable devices, a capacitor from ADJ to GND will decrease high frequency noise on the output. See following figure Minimum Load The TS5201 will remain stable and in regulation with no load unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications. Dual-Supply Systems When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground. |
Codice articolo simile - TS5201 |
|
Descrizione simile - TS5201 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEETIT.COM |
| Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |
Italian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
