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LT1424-9 数据表(PDF) 3 Page - Linear Technology |
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LT1424-9 数据表(HTML) 3 Page - Linear Technology |
3 / 16 page 3 LT1424-9 Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: VREF is a parameter which is measured at the VSW pin. It differs from the output voltage because it accounts for output diode drop, transformer leakage inductance, etc. Nominal output voltage is 9V in the intended application circuit. Note 3: Feedback amplifier transconductance is RREF referred. Note 4: Voltage gain is RREF referred. ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VSW Open, VC = 1.4V, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Timing f Switching Frequency 260 285 300 kHz q 240 285 320 kHz tON Minimum Switch ON Time 170 200 260 ns tED Flyback Enable Delay Time 150 ns tEN Minimum Flyback Enable Time 180 ns Maximum Switch Duty Cycle q 85 90 % Load Compensation ∆VREF/∆ISW 1.5 Ω SYNC Function Minimum SYNC Amplitude q 1.5 2.2 V Synchronization Range q 330 450 kHz SYNC Pin Input Resistance 40 k Ω |
类似零件编号 - LT1424-9 |
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类似说明 - LT1424-9 |
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