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LM26001 Folha de dados(PDF) 6 Page - Texas Instruments |
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LM26001 Folha de dados(HTML) 6 Page - Texas Instruments |
6 / 31 page LM26001, LM26001-Q1 SNVS430I – MAY 2006 – REVISED MARCH 2015 www.ti.com Electrical Characteristics (continued) Unless otherwise stated, Vin=12 V. Minimum and Maximum limits are ensured 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. (1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ISS_Source Soft-start source current 2.2 µA –40°C ≤ TJ ≤ 125°C 1.5 4.6 Vbias_th VBIAS On Voltage Specified at IBIAS = 92.5% of full 2.64 2.9 3.07 V value SWITCHING RDS(ON) Switch on Resistance Isw = 1A 0.2 Ω Isw = 1A, –40°C ≤ TJ ≤ 125°C 0.12 0.42 Isw_off Switch off state leakage current Vin = 38 V, VSW = 0 V 0.002 µA Vin = 38 V, VSW = 0 V, –40°C ≤ 5.0 TJ ≤ 125°C fsw Switching Frequency RFREQ = 62k, 124k, 240k ±10% VFREQ FREQ voltage 1.0 V fSW range Switching Frequency range –40°C ≤ TJ ≤ 125°C 150 500 kHz VSYNC Sync pin threshold SYNC rising 1.2 V SYNC rising, –40°C ≤ TJ ≤ 125°C 1.6 SYNC falling 1.1 SYNC falling, –40°C ≤ TJ ≤ 125°C 0.8 Sync pin hysteresis 114 mV ISYNC SYNC leakage current 6 nA FSYNC_UP Upper frequency synchronization range As compared to nominal fSW, 30% –40°C ≤ TJ ≤ 125°C FSYNC_DN Lower frequency synchronization range As compared to nominal fSW, –20% –40°C ≤ TJ ≤ 125°C TOFFMIN Minimum Off-time 365 ns TONMIN Minimum On-time 155 ns THSLEEP_HYS Sleep mode threshold hysteresis VFB rising, % of THWAKE 101.2% THWAKE Wake up threshold Measured at falling FB, COMP = 1.234 V 0.6 V IBOOT BOOT pin leakage current BOOT = 16 V, SW = 10 V 0.0006 µA BOOT = 16 V, SW = 10 V, –40°C 5.0 ≤ TJ ≤ 125°C PROTECTION ILIMPK Peak Current Limit 2.5 A –40°C ≤ TJ ≤ 125°C 1.85 3.2 VFB_SC Short circuit frequency foldback Measured at FB falling 0.87 V threshold F_min_sc Min Frequency in foldback VFB < 0.3 V 71 kHz VTH_PGOOD Power Good Threshold Measured at FB, PGOOD rising 92% Measured at FB, PGOOD rising, 89% 95% –40°C ≤ TJ ≤ 125°C PGOOD hysteresis 2% 7% 8% IPGOOD_HI PGOOD leakage current PGOOD = 5 V 0.2 nA RDS_PGOOD PGOOD on resistance PGOOD sink current = 500 µA 64 Ω 6 Submit Documentation Feedback Copyright © 2006–2015, Texas Instruments Incorporated Product Folder Links: LM26001 LM26001-Q1 |
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