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LM3814MX-7.0 数据表(PDF) 4 Page - National Semiconductor (TI) |
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LM3814MX-7.0 数据表(HTML) 4 Page - National Semiconductor (TI) |
4 / 14 page Electrical Characteristics (Continued) Common Device Parameters (Continued) Unless otherwise specified, V DD = 5.0V for the following specifications. Supply bypass capacitor is 1µF and filter capacitor is 0.1µF. Symbol Parameter Conditions Typ (Note 5) Limit (Note 6) Units V OL Logic Low Level for PWM Sink current = 1mA, 2V ≤ V DD ≤ 5.25V 0.04 V 0.2 V (max) P I Insertion Loss I SENSE = 1A (Note 9) 0.004 Ω Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: At elevated temperatures, devices must be derated based on package thermal resistance. The device in the surface-mount package must be derated at θJA= 150˚C/W (typically), junction-to-ambient. Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. Note 4: The absolute maximum peak and continuous currents specified are not tested. These specifications are dependent on the θJA, which is 150˚C/W for the S08 package. Note 5: Typical numbers are at 25˚C and represent the most likely parametric norm. Specifications in standard type face are for TJ= 25˚C and those with boldface type apply over full operating temperature ranges. Note 6: Limits are 100% production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control (SQC) methods. The limits are used to calculate National’s Averaging Outgoing Quality Level (AOQL). Note 7: There is a variation in accuracy over time due to thermal effects. Please refer to the PWM Output and Current Accuracy section for more information. Note 8: The PWM accuracy for LM3814-7.0 and LM3815-7.0 depends on the amount of copper area under pins 1 and 2, and the layout. Please refer to the "PWM Output and Current Accuracy" section for more information. Note 9: The tolerance of the internal lead frame resistor is corrected internally. The temperature coefficient of this resistor is 2600 ppm/˚C. Typical Performance Characteristics Supply bypass capacitor is 0.1µF and filter capacitor is 0.1µF. Measured Current vs Actual Current (LM3814-1.0 and LM3815-1.0) Measured Current vs Actual Current (LM3814-7.0 and LM3815-7.0) 10101315 10101324 www.national.com 4 |
类似零件编号 - LM3814MX-7.0 |
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类似说明 - LM3814MX-7.0 |
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