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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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LT8697 bảng dữ liệu(PDF) 3 Page - Analog Devices |
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LT8697 bảng dữ liệu(HTML) 3 Page - Analog Devices |
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3 / 40 page  LT8698S/LT8698S-1 3 Rev. A For more information www.analog.com ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Shutdown Current VEN/UV = 0.25V, VIN = 12V 0.1 1 µA VIN Current in Regulation ILOAD = 0A, VSYNC/MODE = 0V, VIN = 12V (Note 4) ILOAD = 0A, VSYNC/MODE = Open, VIN = 12V (Note 4) l l 2.5 23 4 36 mA mA VCHG Regulator Output Voltage at BUS/ISN ILOAD = 0A, RCBL = 3.57k (Note 4) ILOAD = 2.4A, RCBL = 3.57k (Note 4) ILOAD = 0A, VUSB5V = 0V (Note 4) l l l 4.925 5.52 5.93 5.00 5.61 6.05 5.063 5.680 6.13 V V V USB5V Voltage VIN = 5V to 42V l 4.915 4.99 5.053 V Upper FLT Threshold Offset Percentage of VUSB5V, VUSB5V Falling l 4 7 10 % Lower FLT Threshold Offset Percentage of VUSB5V, VUSB5V Rising l 4 7 10 % FLT Threshold Hysteresis Percentage of VUSB5V 3 % ICDP Regulator Output Current Limit VBUS/ISN = 4.5V, RSEN = 10mΩ 2.55 2.65 2.75 A Latch-On Time in Current Limit VBUS/ISN = 0.2V 3.4 4.2 5 ms TSHTDWN_REC Latch-Off Time in Current Limit VBUS/ISN = 0.2V 48 59 70 ms Regulator Output Current STATUS Threshold IBUS/ISN Falling, RSEN = 10mΩ 20 100 180 mA Regulator Output Current STATUS Threshold Hysteresis RSEN = 10mΩ 20 mA Regulator Output Sink Current VBUS/ISN = 6.3V (Note 4) –2.9 –2.3 –1.7 A RCBL Monitor Voltage ILOAD = 0A, RSEN = 10mΩ ILOAD = 2.4A, RSEN = 10mΩ l l 0 1.05 2 1.10 50 1.15 mV V Oscillator Frequency RT = 9.09k RT = 66.5k RT = 5.76k l l l 1.8 255 2.7 2 300 3 2.2 345 3.3 MHz kHz MHz SYNC/MODE Low Threshold for Pulse-Skip Operation VSYNC/MODE Rising l 0.3 0.7 1.1 V SYNC/MODE Input High for Synced Operation l 1.5 V SYNC/MODE Input Low for Synced Operation l 0.4 V SYNC/MODE High Threshold for Spread Spectrum Operation VSYNC/MODE Rising l 2.7 3.2 3.7 V SYNC/MODE Pull Up Current for Forced Continuous Operation VSYNC/MODE = 2V l 2 4.25 6.5 µA Top Switch Max Current Limit 5 6 7 A Top Switch On Resistance ISW = 1A 75 mΩ Bottom Switch On Resistance ISW = 1A 75 mΩ SW Leakage Current –1 0 1 µA EN/UV Threshold VEN/UV Falling l 1.17 1.31 1.45 V EN/UV Threshold Hysteresis 150 mV EN/UV Current VEN/UV = 2V –100 100 nA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) |
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