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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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LTC1647-3IGN Arkusz danych(PDF) 3 Page - Linear Technology |
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LTC1647-3IGN Arkusz danych(HTML) 3 Page - Linear Technology |
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3 / 20 page  LTC1647-1/LTC1647-2/LTC1647-3 3 ∆VGATE External MOSFET Gate Drive (VGATE – VCC), VCC1 = VCC2 = 5V q 10 13 17 V (VGATE – VCC), VCC1 = VCC2 = 12V q 10 15 19 V VONHI ONX Threshold High q 1.20 1.29 1.38 V VONLO ONX Threshold Low q 1.17 1.21 1.25 V VONHYST ONX Hysteresis 70 mV IIN ONX Input Current ON = GND or VCC q ±1 ±10 µA VOL FAULT X Output Low Voltage IO = 1mA, VCC = 5V q 0.4 V (LTC1647-2, LTC1647-3) IO = 5mA, VCC = 5V 0.8 V ILEAK FAULT X Output Leakage Current No Fault, FAULT X = VCC = 5V ±1 ±10 µA (LTC1647-3) tFAULT Circuit Breaker Delay Time VCCX – VSENSEX = 0 to 100mV 0.3 µs tRESET Circuit Breaker Reset Time ONX High to Low, to FAULT X High q 50 100 µs tON Turn-On Time ONX Low to High, to GATE X On 2 µs tOFF Turn-Off Time ONX High to Low, to GATE X Off 1 µs ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified. Note 3: An internal Zener on the GATE pins clamp the charge pump voltage to a typical maximum operating voltage of 28V. External overdrive of the GATE pin beyond the internal Zener voltage may damage the device. The GATE capacitance must be < 0.15 µF at maximum VCC. If a lower GATE pin clamp voltage is desired, use an external Zener diode. Note 4: The total supply current ICC is measured with VCC1 and VCC2 connected internally (LTC1647-1, LTC1647-2) or externally (LTC1647-3). Note 5: The individual supply current ICCX is measured on the LTC1647-3. The lower of the two supplies, VCC1 and VCC2, will have its channel’s current. The higher supply will carry the additional supply current of the charge pump and the bias generator beside its channel’s current. LTC1647-1 Pinout PIN DESCRIPTION 1VCC 2 ON1 3 ON2 4 GND LTC1647-3 Pinout PIN DESCRIPTION 1VCC1 2 ON1 3 FAULT 1 4 ON2 5 FAULT 2 6NC 7NC 8 GND PIN DESCRIPTION 5 GATE 2 6 GATE 1 7 SENSE 2 8 SENSE 1 PIN DESCRIPTION 9NC 10 NC 11 NC 12 GATE 2 13 GATE 1 14 SENSE 2 15 SENSE 1 16 VCC2 LTC1647-2 Pinout PIN DESCRIPTION 1VCC 2 ON1 and FAULT 1 (Internally Tied Together) 3 ON2 and FAULT 2 (Internally Tied Together) 4 GND PIN DESCRIPTION 5 GATE 2 6 GATE 1 7 SENSE 2 8 SENSE 1 LTC1647-1 does not have the FAULT status feature. The ONX/FAULT X must be connected to a driver via a resistor if the autoretry feature is being used.. PI TABLES |
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