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LM25141QRGERQ1 Datasheet(PDF) 7 Page - Texas Instruments |
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LM25141QRGERQ1 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 49 page 7 LM25141-Q1 www.ti.com SNVSAP9 – MARCH 2017 Product Folder Links: LM25141-Q1 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) TJ = –40°C to +125°C, Typical values TJ = 25°C, VIN = 12 V, VCCX = 5 V, VOUT = 5 V, EN = 5 V, OSC = VDD, FSW = 2.2 MHz, no-load on the Drive Outputs (HO, HOL, LO, and LOL outputs), over operating free-air temperature range (unless otherwise noted) (1)(2) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT FB(EXTRES) Thevenin equivalent resistance at FB for external regulation detection FB < 2 V 5 kΩ TRANSCONDUCTANCE AMPLIFIER Gm Gain Feedback to COMP 1010 1200 µS Input bias current 15 nA Transconductance Amplifier source current COMP = 1 V, FB = 1 V 100 µA Transconductance Amplifier sink current COMP = 1 V, FB = 1.4 V 100 µA POWER GOOD PG(UV) PG undervoltage trip levels Falling with respect to the regulation voltage 90% 92% 94% PG(OVP) PG overvoltage trip levels Rising with respect to the regulation voltage 108% 110% 112% PG(HYST) 3.4% PG(VOL) PG Open collector, Isink = 2 mA 0.4 V PG(rdly) OV filter time VOUT rising 25 µs PG(fdly) UV filter time VOUT falling 30 µs HO GATE DRIVER VOLH HO low-state output voltage IHO = 100 mA 0.05 V VOHH HO high-state output voltage IHO = –100 mA, VOHH = VHB – VHO 0.07 V trHO HO rise time (10% to 90%) CLOAD = 2700 pf 4 ns tfHO HO fall time (90% to 10%) CLOAD = 2700 pf 3 ns IOHH HO peak source current VHO = 0 V, SW = 0 V, HB = 5 V, VCCX = 5 V 3.25 Apk IOLH HO peak sink current VCCX = 5 V 4.25 Apk V(BOOT) UVLO HO falling 2.5 V Hysteresis 110 mV I(BOOT) Quiescent current 3 µA LO GATE DRIVER VOLL LO low-state output voltage ILO = 100 mA 0.05 V VOHL LO high-state output voltage ILO = –100 mA, VOHL = VCC – VLO 0.07 V trLO LO rise time (10% to 90%) CLOAD = 2700 pf 4 ns tfLO LO fall time (90% to 10%) CLOAD = 2700 pf 3 ns IOHL LO peak source current VCCX = 5 V 3.25 Apk IOLL LO peak sink current VCCX = 5 V 4.25 Apk ADAPTIVE DEAD TIME CONTROL V(GS-DET) VGS detection threshold VGS falling, no-load 2.5 V tdly1 HO off to LO on dead time 20 40 ns tdly2 LO off to HO on dead time 20 38 ns DIODE EMULATION VIL DEMB input low threshold 0.8 V VIH FPWM input high threshold 2.0 V SW Zero cross threshold –5 mV ENABLE INPUT VIL Enable input low threshold VCCX = 0 V 0.8 V |
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