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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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34716 датащи(PDF) 10 Page - Freescale Semiconductor, Inc |
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34716 датащи(HTML) 10 Page - Freescale Semiconductor, Inc |
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10 / 25 page  Analog Integrated Circuit Device Data 10 Freescale Semiconductor 34716 ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics Characteristics noted under conditions 3.0 V ≤ V IN ≤ 6.0 V, - 40°C ≤ T A ≤ 85°C, GND = 0 V unless otherwise noted. Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted. Characteristic Symbol Min Typ Max Unit CHANNEL 1 BUCK CONVERTER (PVIN1, SW1, PGND1, BOOT1, INV1, COMP1, ILIM1) Switching Node (SW1) Rise Time (22) (PVIN = 3.3 V, IOUT1 = 5.0 A) tRISE1 - 8.0 - ns Switching Node (SW1) Fall Time (22) (PVIN = 3.3 V, IOUT1 = 5.0 A) tFALL1 - 5.0 - ns Soft Start Duration (Normal Mode) ILIM1: 1.25V to 1.49V 1.5V to 1.81V 1.82V to 2.13V 2.14V to 2.5V tSS1 - - - - 3.2 1.6 0.8 0.4 - - - - ms Over Current Limit Timer tLIM1 - 10 - ms Over Current Limit Retry Time-out Period tTIMEOUT1 80 - 120 ms Output Undervoltage/Overvoltage Filter Delay Timer tFILTER1 5.0 - 25 µs CHANNEL 2 BUCK CONVERTER (PVIN2, SW2, PGND2, BOOT2, INV2, COMP2) Switching Node (SW2) Rise Time (22) (PVIN = 3.3 V, IOUT2 = ±3.0 A) tRISE2 - 28 - ns Switching Node (SW2) Fall Time (22) (PVIN = 3.3 V, IOUT2 = ±3.0 A) tFALL2 - 12.0 - ns Soft Start Duration (Normal Mode) tSS2 - 1.6 - ms Over Current Limit Timer tLIM2 - 10 - ms Over Current Limit Retry Time-out Period tTIMEOUT2 80 - 120 ms Output Undervoltage/Overvoltage Filter Delay Timer tFILTER2 5.0 - 25 µs OSCILLATOR (FREQ) (23) Oscillator Default Switching Frequency (FREQ = GND) fSW - 1.0 - MHz Oscillator Switching Frequency Range fSW 200 - 1000 kHz CONTROL AND SUPERVISORY (STBY, SD, PG) PG Reset Delay tPGRESET 8.0 - 12 ms Thermal Shutdown Retry Time-out Period (22) tTIMEOUT 80 - 120 ms Notes 22. Design information only, this parameter is not production tested. 23. Oscillator Frequency tolerance is ±10%. |
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