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LM25119 データシート(PDF) 6 Page - Texas Instruments |
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LM25119 データシート(HTML) 6 Page - Texas Instruments |
6 / 33 page LM25119/25119Q SNVS680E – AUGUST 2010 – REVISED FEBRUARY 2013 www.ti.com Electrical Characteristics Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature range of -40°C to +125°C. Unless otherwise specified, the following conditions apply: VIN = 12V, VCC = 8V, VCCDIS = 0V, EN2 = 5V, RT = 25k Ω, no load on LO and HO. Electrical characteristics are per channel where applicable. See (1), (2), and (3). Symbol Parameter Conditions Min Typ Max Units VIN Supply IBIAS VIN Operating Current SS1 = SS2 = 0V 6 7.3 mA VCCDIS = 2V, SS1 = SS2 = 0V 340 500 µA IVCC VCC1 Operating Current VCCDIS = 2V, SS1 = SS2 = 0V 3.9 4.5 mA VCC2 Operating Current VCCDIS = 2V, SS1 = SS2 = 0V 1.4 2.0 mA ISHUTDOWN VIN Shutdown Current UVLO = 0V, SS1 = SS2 = 0V 15 33 µA VCC Regulator(4) VCC(REG) VCC Regulation 6.77 7.6 8.34 V VCC Regulation VIN = 4.5V, No external load 4.4 4.46 V VCC Sourcing Current Limit VCC = 0V 25 40 mA VCCDIS Switch Threshold VCCDIS Rising 1.19 1.25 1.29 V VCCDIS Switch Hysteresis 0.07 V VCCDIS Input Current VCCDIS = 0V -20 nA VCC Under-voltage Threshold Positive going VCC 3.8 4.0 4.2 V VCC Under-voltage Hysteresis 0.2 V EN2 Input VIL EN2 Input Low Threshold 2.0 1.5 V VIH EN2 Input High Threshold 2.9 2.5 V EN2 Input pull-up resistor 50 k Ω UVLO UVLO Threshold UVLO Rising 1.20 1.25 1.29 V UVLO Hysterisis Current UVLO = 1.4V 15 20 25 µA UVLO Shutdown Threshold 0.4 V UVLO Shutdown Hysterisis Voltage 0.1 V Soft Start SS Current Source SS = 0V 7 10 13 µA SS Pull Down RDSON 10 Ω Error Amplifier VREF FB Reference Voltage Measured at FB pin, FB = COMP 0.788 0.8 0.812 V FB Input Bias Current FB = 0.8V 1 nA FB Disable Threshold Interleaved Threshold 2.5 V COMP VOH Isource = 3mA 2.8 V COMP VOL Isink = 3mA 0.31 V AOL DC Gain 80 dB fBW Unity Gain Bandwidth 3 MHz PWM Comparators tHO(OFF) Forced HO Off-time 220 320 430 ns tON(min) Minimum HO On-time CRAMP = 50pF 100 ns (1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional. For specifications and test conditions see the Electrical Characteristics Table. (2) All limits are specified. All electrical characteristics having room temperature limits are tested during production at TA = 25°C. All hot and cold limits are specified by correlating the electrical characteristics to process and temperature variations and applying statistical process control. (3) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Texas Instrument's Average Outgoing Quality Level (AOQL). (4) Per VCC Regulator 6 Submit Documentation Feedback Copyright © 2010–2013, Texas Instruments Incorporated Product Folder Links: LM25119/25119Q |
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同様の説明 - LM25119 |
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