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LM3525 数据表(PDF) 4 Page - National Semiconductor (TI) |
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LM3525 数据表(HTML) 4 Page - National Semiconductor (TI) |
4 / 10 page AC Electrical Characteristics Limits in standard typeface are for T J = 25˚C, and limits in boldface type apply over the full operating temperature range. Un- less otherwise specified: V IN = 5.0V. Symbol Parameter Conditions Min Typ Max Units t r OUT Rise Time R L =10Ω 200 µs t f OUT Fall Time R L =10Ω 20 µs t ON Turn on Delay, EN to OUT R L =10Ω 200 µs t OFF Turn off Delay, EN to OUT R L =10Ω 20 µs t OC Over Current Flag Delay R L =0 1 ms Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device beyond its rated operating conditions. Products are not tested under negative Absolute Maximum conditions. Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX (maximum junction temperature), θJA (junction to am- bient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDMAX = (TJMAX −TA)/θJA or the number given in the Absolute Maximum Ratings, which ever is lower. The thermal resistance θJA of the LM3525 in the SO-8 package is 150˚C/W. Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. Note 4: Thermal shutdown will protect the device from permanent damage. Note 5: For the LM3525-L, OFF is EN ≥ 2.4V and ON is EN ≤ 0.8V. For the LM3525-H, OFF is EN ≤ 0.8V and ON is EN ≥ 2.4V Pin Description Pin Number Pin Name Pin Function 1EN (LM3525-L) EN (LM3525-H) Enable (Input): Logic-compatible enable input. 2 FLG Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent, UVLO and thermal shutdown. 3 GND Ground 4, 5 NC Not internally connected. 7 IN Supply Input: This pin is the input to the power switch and the supply voltage for the IC. 6, 8 OUT Switch Output: This pin is the output of the high side switch. Pins6&8 must be tied together. Typical Application Circuit DS101055-3 www.national.com 4 |
类似零件编号 - LM3525 |
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类似说明 - LM3525 |
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