 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
LTC1735IGN-1 датащи(PDF) 3 Page - Linear Technology |
|
|
|||||||||||||||||||||||||||||
LTC1735IGN-1 датащи(HTML) 3 Page - Linear Technology |
|
|
3 / 28 page  3 LTC1735-1 Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formulas: LTC1735CS-1, LTC1735IS-1: TJ = TA + (PD • 110 °C/W) LTC1735CGN-1, LTC1735IGN-1: TJ = TA + (PD • 130°C/W) Note 3: The LTC1735-1 is tested in a feedback loop that servos VOSENSE to the balance point for the error amplifier (VITH = 1.2V). Note 4: The minimum on-time condition corresponds to an inductor peak-to-peak ripple current > 40% of IMAX (see Minimum On-Time Considerations in the Applications Information section). Note 5: Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. See Applications Information. Note 6: Oscillator frequency is tested by measuring the COSC charge current (IOSC) and applying the formula: f kHz CpF I I OSC OSC CHG DIS () .() () – = + + 8 477 10 11 11 8 1 Note 7: Rise and fall times are measured using 10% to 90% levels. Delay times are measured using 50% levels. ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, VRUN/SS = 5V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS TG Transition Time: (Note 7) TG tr Rise Time CLOAD = 3300pF 50 90 ns TG tf Fall Time CLOAD = 3300pF 50 90 ns BG Transition Time: (Note 7) BG tr Rise Time CLOAD = 3300pF 50 90 ns BG tf Fall Time CLOAD = 3300pF 40 80 ns TG/BG T1D Top Gate Off to Synchronous CLOAD = 3300pF Each Driver 100 ns Gate-On Delay Time TG/BG T2D Synchronous Gate Off to Top CLOAD = 3300pF Each Driver 70 ns Gate-On Delay Time Internal VCC Regulator VINTVCC Internal VCC Voltage 6V < VIN < 30V, VEXTVCC = 4V 5.0 5.2 5.4 V VLDO(INT) INTVCC Load Regulation ICC = 0mA to 20mA, VEXTVCC = 4V 0.2 1 % VLDO(EXT) EXTVCC Drop Voltage ICC = 20mA, VEXTVCC = 5V 130 200 mV VEXTVCC EXTVCC Switchover Voltage ICC = 20mA, EXTVCC Ramping Positive q 4.5 4.7 V VEXTVCC(HYS) EXTVCC Hysteresis 0.2 V Oscillator fOSC Oscillator Frequency (Note 6), COSC = 43pF 265 300 335 kHz fH/fOSC Maximum Sync Frequency Ratio 1.3 PGOOD Pin VPG(SYNC) PGOOD Threshold for Sync Ramping Negative 0.9 1.2 V VPG(FC) PGOOD Threshold for Force Cont. 0.76 0.8 0.84 V VPGL PGOOD Voltage Low IPGOOD = 2mA 110 200 mV IPGOOD PGOOD Pull-Up Current VPGOOD = 0.85V – 0.17 µA VPG PGOOD Trip Level VOSENSE With Respect to Set Output Voltage VOSENSE Ramping Negative – 6.0 –7.5 –9.5 % VOSENSE Ramping Positive 6.0 7.5 9.5 % |
|
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
