Datenblatt-Suchmaschine für elektronische Bauteile |
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LM25011A Datenblatt(PDF) 4 Page - Texas Instruments |
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LM25011A Datenblatt(HTML) 4 Page - Texas Instruments |
4 / 27 page LM25011, LM25011-Q1 SNVS617G – APRIL 2009 – REVISED FEBRUARY 2013 www.ti.com ELECTRICAL CHARACTERISTICS Specifications with standard type are for TJ = 25°C only; limits in boldface type apply over the full Operating Junction Temperature (TJ) range. 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. Unless otherwise stated the following conditions apply: VIN = 12V, RT = 50 kΩ. Symbol Parameter Conditions Min Typ Max Unit Input (VIN Pin) IIN Input operating current Non-switching, FB = 3V 1200 1600 µA UVLOVIN VIN under-voltage lock-out threshold VIN Increasing 4.6 5.3 5.9 V VIN under-voltage lock-out threshold 200 mV hysteresis Switch Characteristics RDS(ON) Buck Switch RDS(ON) ITEST = 200 mA 0.3 0.6 Ω UVLOGD Gate Drive UVLO BST-SW 2.4 3.4 4.4 V UVLOGD Hysteresis 350 mV Pre-charge switch voltage ITEST = 10 mA into SW pin 1.4 V Pre-charge switch on-time 120 ns Soft-Start Pin VSS Pull-up voltage 2.51 V ISS Internal current source 10 µA VSS-SH Shutdown Threshold 70 140 mV Current Limit VILIM Threshold voltage at CS -146 -130 -115 mV CS bias current FB = 3V -120 µA CSG bias current FB = 3V -35 µA On Timer, RT Pin tON - 1 On-time VIN = 12V, RT = 50 kΩ 150 200 250 ns tON - 2 On-time VIN = 32V, RT = 50 kΩ 75 ns tON - 3 On-time (current limit) LM25011 VIN = 12V, RT = 50 kΩ 100 ns tON - 3 On-time (current limit) LM25011A VIN = 12V, RT = 50 kΩ 200 ns tON - 4 On-time VIN = 12V, RT = 301 kΩ 1020 ns tON - 5 On-time VIN = 9V, RT = 30.9 kΩ 130 171 215 ns tON - 6 On-time VIN = 12V, RT = 30.9 kΩ 105 137 170 ns tON - 7 On-time VIN = 16V, RT = 30.9 kΩ 79 109 142 ns Off Timer tOFF Minimum Off-time (LM25011) 90 150 208 ns Minimum Off-time (LM25011A) 52 75 93 Regulation Comparator (FB Pin) VREF FB regulation threshold SS pin = steady state 2.46 2.51 2.56 V FB bias current FB = 3V 100 nA Power Good (PGD pin) Threshold at FB, with respect to VREF FB increasing 91 95 % Threshold hysteresis 3.3 % PGDVOL Low state voltage IPGD = 1mA, FB = 0V 125 180 mV PGDLKG Off state leakage VPGD = 7V, FB = 3V 0.1 µA 4 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated Product Folder Links: LM25011 LM25011-Q1 |
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Ähnliche Beschreibung - LM25011A |
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