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LM5037 数据表(PDF) 5 Page - Texas Instruments |
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LM5037 数据表(HTML) 5 Page - Texas Instruments |
5 / 40 page LM5037 www.ti.com SNVS578D – NOVEMBER 2008 – REVISED MAY 2015 6.5 Electrical Characteristics over operating free-air temperature range, VVIN = 48 V, VVCC = 10 V, RRT1/SYNC = 30.1 kΩ, RRT2 = 30.1 kΩ, VUVLO = 3 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT STARTUP REGULATOR (VCC PIN) IVCC = 10 mA 7.4 8 VVCC VCC voltage V IVCC = 10 mA, TA = 25°C 7.7 VVCC = 7 V 45 IVCC(lim) VCC current limit mA VVCC = 7 V, TA = 25°C 60 VCC Reg- VVIN = VVCC 0.2 VCC undervoltage threshold VVCC(UV) VCC Reg- V VVIN = VVCC, TA = 25°C 0.1 Hysteresis 1.5 VVIN = 100 V, VUVLO = 0 V 430 VVIN = 100 V, VUVLO = 0 V, 350 TA = 25°C IVIN Startup regulator current µA VVIN = 48 V, VUVLO = 0 V 370 VVIN = 48 V, VUVLO = 0 V, TA = 25°C 325 Output pins and COMP = Open 5.5 Supply current into VCC from IVCC mA Output pins and COMP = Open, external source 3 TA = 25°C VOLTAGE REFERENCE REGULATOR (REF PIN) IREF = 0 mA 4.75 5.15 REF pin voltage V IREF = 0 mA, TA = 25°C 5 VREF 0 A ≤ IREF ≤ 2.5 mA 25 REF voltage regulation mV 0 A ≤ IREF ≤ 2.5 mA, TA = 25°C 7 VREF = 4.5 V 5 IREF(lim) REF current limit mA VREF = 4.5 V, TA = 25°C 10 3.7 4.3 VREF undervoltage threshold V TA = 25°C 4 VREF(UV) Hysteresis 0.35 V UNDERVOLTAGE LOCKOUT AND SHUTDOWN (UVLO PIN) 1.20 1.295 TA = 25°C 1.25 VUVLO Undervoltage lockout threshold V UVLO voltage rising 0.37 0.47 UVLO voltage rising, TA = 25°C 0.42 Hysteresis voltage 0.1 V UVLO pin sinking 18 25 IUVLO Hysteresis current µA UVLO pin sinking, TA = 25°C 22 CURRENT SENSE INPUT (CS PIN) 0.22 0.29 VCS Current limit threshold V TA = 25°C 0.25 tDLY(CS) CS delay to output(1) VCS rising from zero to 1 V. No load. 27 ns tBLK(CS) Leading edge blanking time at CS 66 ns 45 RCS(sink) CS sink impedance (clocked)(2) Ω TA = 25°C 21 (1) Time for OUTA pin and OUTB pin to fall to 90% of VCC. (2) Internal FET sink impedance. Copyright © 2008–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM5037 |
类似零件编号 - LM5037 |
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类似说明 - LM5037 |
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