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LM25141QRGETQ1 датащи(PDF) 8 Page - Texas Instruments |
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LM25141QRGETQ1 датащи(HTML) 8 Page - Texas Instruments |
8 / 49 page 8 LM25141-Q1 SNVSAP9 – MARCH 2017 www.ti.com 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 VIH Enable input high threshold VCCX = 0 V 2.0 V IIkg Leakage EN logic input only 1 µA SYN INPUT (DEMB pin) VIL DEMB input low threshold 0.8 V VIH DEMB input high threshold 2.0 V DEMB input low-frequency range 440 kHz 350 550 kHz DEMB input high-frequency range 2.2 MHz 1800 2600 kHz DITHER IDITHER Dither source/sink current 20 µA VDITHER Dither high threshold 1.26 V Dither low threshold 1.14 V SOFT-START ISS Soft-start current 16 22 28 µA RDS(ON) Soft-start pulldown resistance 3 Ω THERMAL TSD Thermal shutdown 175 ºC Thermal shutdown hysteresis 15 ºC 6.6 Switching Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Oscillator frequency 2.2 MHz OSC = VDDA, VIN = 8–18 V 2100 2200 2300 kHz Oscillator frequency 440 kHz OSC = GND, VIN = 8–18 V 420 440 460 kHz RT Adjustment range 2.2 MHz Minimum OSC = VDD, RTMIN = 61.9 kΩ 1710 1800 1890 kHz Typical OSC = VDD, RTTYP = 49.9 kΩ 2100 2200 2300 kHz Maximum OSC = VDD, RTMAX = 43.2 kΩ 2405 2530 2655 kHz RT Adjustment range 440kHz Minimum OSC = GND, RTMIN = 73.2 k 285 300 315 kHz Typical OSC = GND, RTTYP = 49.9 kΩ 420 440 460 kHz Maximum OSC = GND, RTMAX = 44.2 kΩ 475 500 525 kHz RT Response time RT= 61.9–43.2 k Ω 2 µs RT Response time RT = 43.2–61.9 k Ω 3.5 µs RT Response time 16 µs ton Minimum on-time 45 66 ns toff Minimum off-time 100 ns |
Аналогичный номер детали - LM25141QRGETQ1 |
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Аналогичное описание - LM25141QRGETQ1 |
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