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LM3410 数据表(PDF) 4 Page - Texas Instruments |
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LM3410 数据表(HTML) 4 Page - Texas Instruments |
4 / 44 page LM3410 SNVS541F – OCTOBER 2007 – REVISED AUGUST 2010 www.ti.com Operating Ratings (1) VIN 2.7V to 5.5V VDIM (2) 0V to VIN VSW 3V to 24V Junction Temperature Range -40°C to 125°C Power Dissipation (Internal) SOT23-5 400 mW (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 does not guarantee specific performance limits. For guaranteed specifications and conditions, see the Electrical Characteristics. (2) Do not allow this pin to float or be greater than VIN +0.3V. Electrical Characteristics Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C to 125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. VIN = 5V, unless otherwise indicated under the Conditions column. Symbol Parameter Conditions Min Typ Max Units VFB Feedback Voltage 178 190 202 mV ΔVFB/VIN Feedback Voltage Line Regulation VIN = 2.7V to 5.5V - 0.06 - %/V IFB Feedback Input Bias Current - 0.1 1 µA LM3410-X 1200 1600 2000 FSW Switching Frequency kHz LM3410-Y 360 525 680 LM3410-X 88 92 - DMAX Maximum Duty Cycle % LM3410-Y 90 95 - LM3410-X - 5 - DMIN Minimum Duty Cycle % LM3410-Y - 2 - SOT23-5 and eMSOP-8 - 170 330 RDS(ON) Switch On Resistance m Ω LLP-6 190 350 ICL Switch Current Limit 2.1 2.80 - A SU Start Up Time - 20 - µs LM3410-X VFB = 0.25 - 7.0 11 Quiescent Current (switching) mA IQ LM3410-Y VFB = 0.25 - 3.4 7 Quiescent Current (shutdown) All Options VDIM = 0V - 80 - nA VIN Rising - 2.3 2.65 UVLO Undervoltage Lockout V VIN Falling 1.7 1.9 - Shutdown Threshold Voltage - - 0.4 VDIM_H V Enable Threshold Voltage 1.8 - - ISW Switch Leakage VSW = 24V - 1.0 - µA IDIM Dimming Pin Current Sink/Source - 100 - nA LLP-6 and eMSOP-8 Package - 80 - Junction to Ambient θJA °C/W 0 LFPM Air Flow (1) SOT23-5 Package - 118 - LLP-6 and eMSOP-8 Package - 18 - θJC Junction to Case (1) °C/W SOT23-5 Package - 60 - TSD Thermal Shutdown Temperature (2) - 165 - °C (1) Applies for packages soldered directly onto a 3” x 3” PC board with 2oz. copper on 4 layers in still air. (2) Thermal shutdown will occur if the junction temperature exceeds the maximum junction temperature of the device. 4 Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated Product Folder Links: LM3410 |
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类似说明 - LM3410 |
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