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LM4510 Datasheet(PDF) 4 Page - Texas Instruments |
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LM4510 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 23 page LM4510 SNVS533C – SEPTEMBER 2007 – REVISED MAY 2013 www.ti.com Electrical Characteristics (1) (2) Limits in standard type face are for TJ = 25°C only. Limits in boldface type apply over the full operating junction temperature range ( −40°C ≤ TJ ≤+125°C). Unless otherwise stated the following conditions apply: VIN = 3.6V, EN = 3.6V. Parameter Test Conditions Min (1) Typ (2) Max (1) Units VFB FB Pin Voltage 2.7V ≤ VIN ≤ 5.5V 1.24 1.265 1.29 V IFB FB Pin Bias Current(3) 0.050 1.5 µA NMOS Switch RDS(on) ISW = 0.3A 0.45 1.1 RDS(on) Ω PMOS Switch RDS(on) ISW = 0.3A, VOUT = 10V 0.9 1.1 ICL NMOS Switch Current Limit 1.0 1.2 1.8 A Device Switching EN = 3.6V, FB = COMP 1.7 2.5 mA IQ Non-switching Current EN = 3.6V, FB > 1.29V 0.8 2.0 mA Shutdown Current EN = 0V 0.002 0.050 µA IL SW Leakage Current(3) SW = 20V 0.01 0.150 µA IVOUT VOUT Bias Current(3) VOUT = 20V 50 90 150 µA PMOS Switch Leakage SW = 0V, VOUT = 20V IVL 0.001 0.100 µA Current fSW Switching Frequency 0.85 1.0 1.2 MHz DMAX Maximum Duty Cycle FB = 0V 88 94 % DMIN Minimum Duty Cycle 15 20 % Error Amplifier Gm 70 130 200 µmho Transconductance Device Enable HIGH 1.2 0.81 EN V Threshold Device Shutdown LOW 0.78 0.4 IEN EN Pin Bias Current 0 < EN < 3.6V 3.2 8.0 µA ON Threshold 18.0 19.7 20.7 V FB Fault Feedback Fault Protection Protection OFF Threshold 17.0 18.7 20.0 ON Threshold 2.5 2.65 UVLO Input Undervoltage Lockout V OFF Threshold 2.1 2.35 ISS Soft-Start Pin Current(4) 9 11.3 15 µA (1) All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are production tested, specified through statistical analysis or by design. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (2) Typical numbers are at 25°C and represent the most likely norm. (3) Current flows into the pin. (4) Current flows out of the pin. 4 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: LM4510 |
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