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LM3424-Q1 Datasheet(PDF) 6 Page - Texas Instruments |
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LM3424-Q1 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 69 page  LM3424, LM3424-Q1 SNVS603C – AUGUST 2009 – REVISED AUGUST 2015 www.ti.com 6.6 Electrical Characteristics MIN and MAX limits apply over the full Operating Temperature Range (TA = TJ = −40°C to 125°C) unless otherwise specified. Minimum and Maximum limits are ensured through test, design, or statistical correlation. Unless otherwise stated the following condition applies: TJ = 25°C, VIN = 14 V. PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT STARTUP REGULATOR (VCC) VCC-REG VCC Regulation ICC = 0 mA 6.3 6.9 7.35 V ICC-LIM VCC Current Limit VCC = 0 V 20 25 mA IQ Quiescent Current EN = 3 V, Static 2 3 mA ISD Shutdown Current EN = 0 V, MAX: TJ = 25°C 0.1 1 µA VCC-UVLO VCC UVLO Threshold VCC Increasing 4.17 4.50 V VCC Decreasing 3.7 4.08 V VCC-HYS VCC UVLO Hysteresis 0.1 V ENABLE (EN) VEN-ST EN Startup Threshold EN Increasing 1.75 2.4 V EN decreasing 0.8 1.63 V VEN-HYS EN Startup Hysteresis 0.1 V REN EN Pull-down Resistance 0.45 0.82 1.30 M Ω OVER-VOLTAGE PROTECTION (OVP) VTH-OVP OVP OVLO Threshold OVP Increasing 1.185 1.24 1.285 V IHYS-OVP OVP Hysteresis Source Current OVP Active (high) 13 20 27 µA ERROR AMPLIFIER VCSH CSH Reference Voltage With Respect to GND 1.21 1.235 1.26 V Error Amplifier Input Bias Current MIN, MAX: TJ = 25°C –0.6 0 0.6 µA COMP Sink / Source Current 17 26 35 µA Transconductance 100 µA/V Linear Input Range See(3) ±125 mV Transconductance Bandwidth –6-dB Unloaded Response(3) 1 MHz OSCILLATOR (RT) fSW Switching Frequency RT = 36 kΩ 164 207 250 kHz RT = 12 kΩ 525 597 669 kHz VRT-SYNC Sync Threshold 3.5 V PWM COMPARATOR VCP-BASE COMP to PWM Offset - No Slope 750 900 1050 mV Compensation SLOPE COMPENSATION (SLOPE) ΔVCP Slope Compensation Amplitude Additional COMP to PWM Offset 85 mV - SLOPE sinking 100 µA CURRENT LIMIT (IS) VLIM Current Limit Threshold 215 245 275 mV VLIM Delay to Output 35 75 ns tON-MIN Leading Edge Blanking Time 140 240 340 ns HIGH SIDE TRANSCONDUCTANCE AMPLIFIER Input Bias Current 10 µA Transconductance 20 mA/V Input Offset Current –1.5 0 1.5 µA Input Offset Voltage –5 0 5 mV (1) All limits ensured 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 ensured 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) These electrical parameters are ensured by design, and are not verified by test. 6 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: LM3424 LM3424-Q1 |
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