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LM3423Q1 Datasheet(PDF) 5 Page - Texas Instruments |
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LM3423Q1 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 65 page  LM3421, LM3421-Q1 LM3423, LM3423-Q1 www.ti.com SNVS574D – JULY 2008 – REVISED SEPTEMBER 2011 Electrical Characteristics (1) Specifications in standard type face are for TJ = 25°C and those with boldface type apply over the full Operating Temperature Range ( TJ = −40°C to +150°C for LM3421Q0/LM3423Q0, TJ = −40°C to +125°C for all others). Specifications that differ between the two operating ranges will be identified in the Temp Range column as Q0 for TJ = −40°C to +150°C and as Q1 for TJ = −40°C to +125°C. If no temperature range is indicated then the specification holds for both Q1 and Q0. Minimum and Maximum limits are specified 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 condition applies: VIN = +14V. Temp Symbol Parameter Conditions Min(2) Typ(3) Max(2) Units Range STARTUP REGULATOR VCCREG VCC Regulation ICC = 0 mA 6.30 6.90 7.35 V ICCLIM VCC Current Limit VCC = 0V 20 25 IQ Quiescent Current EN = 3.0V, Static Q1 3 mA 2 Q0 3.5 ISD Shutdown Current EN = 0V 0.1 1.0 µA VCC SUPPLY VCCUV VCC UVLO Threshold VCC Increasing 4.17 4.50 VCC Decreasing 3.70 4.08 V VCCHYS VCC UVLO Hysteresis 0.1 EN THRESHOLDS ENST EN Startup Threshold EN Increasing Q1 2.40 1.75 Q0 2.75 V EN Decreasing 0.80 1.63 ENSTHYS EN Startup Hysteresis 0.1 REN EN Pulldown Resistance EN = 1V Q1 1.30 0.45 0.82 M Ω Q0 1.80 CSH THRESHOLDS CSH High Fault CSH Increasing 1.6 V CSH Low Condition on LRDY CSH increasing 1.0 Pin (LM3423) OV THRESHOLDS OVPCB OVP OVLO Threshold OVP Increasing 1.185 1.240 1.285 V OVPHYS OVP Hysteresis Source OVP Active (high) Q1 25 20 23 µA Current Q0 26 DPOL THRESHOLDS DPOLTHRES DPOL Logic Threshold DPOL Increasing 2.0 2.3 2.6 V H RDPOL DPOL Pullup Resistance 500 1200 k Ω FAULT TIMER VFLTTH Fault Threshold Q1 1.285 1.185 1.240 V Q0 1.290 IFLT Fault Pin Source Current Q1 13.0 10.0 11.5 µA Q0 13.5 (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in the Operating Ratings is not implied. The recommended Operating Ratings indicate conditions at which the device is functional and the device should not be operated beyond such conditions. All voltages are with respect to the potential at the AGND pin, unless otherwise specified. (2) All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100% production tested. 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). (3) Typical numbers are at 25°C and represent the most likely norm. Copyright © 2008–2011, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3421 LM3421-Q1 LM3423 LM3423-Q1 |
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