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LM3414MRX データシート(PDF) 6 Page - Texas Instruments |
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LM3414MRX データシート(HTML) 6 Page - Texas Instruments |
6 / 30 page LM3414, LM3414HV SNVS678F – JUNE 2010 – REVISED NOVEMBER 2015 www.ti.com Electrical Characteristics (continued) MIN and MAX limits apply for TJ = –40°C to 125°C unless specified otherwise. VIN = 24 V unless otherwise indicated. PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT INTERNAL VOLTAGE REGULATOR CVCC = 1 µF, No Load to IVCC = 2 4.7 5.4 6 V mA VCC VCC regulator output voltage (3) VIN = 4.5 V, 2-mA Load 3.8 4.2 V MAIN SWITCH RLX Resistance across LX and GND Main Switch Turned ON 1.8 Ω THERMAL PROTECTION TSD Thermal shutdown temperature TJ Rising 170 °C Thermal shutdown temperature TSD-HYS TJ Falling 10 °C hysteresis (3) VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading to the pin. 6.6 Typical Characteristics All curves taken at VIN = 48 V with configuration in typical application for driving twelve power LEDs with ILED = 1 A shown in this data sheet. TA = 25°C, unless otherwise specified. Figure 1. IOUT vs VIN, (4 - 8 LED), LM3414HV Figure 2. IOUT vs VIN, (10 - 18 LED), LM3414HV Figure 3. Efficiency vs VIN, (4 - 8 LED), LM3414HV Figure 4. Efficiency vs VIN, (10 - 18 LED), LM3414HV 6 Submit Documentation Feedback Copyright © 2010–2015, Texas Instruments Incorporated Product Folder Links: LM3414 LM3414HV |
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