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TL4242 数据表(PDF) 4 Page - Texas Instruments |
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TL4242 数据表(HTML) 4 Page - Texas Instruments |
4 / 14 page OUTPUT ELECTRICAL CHARACTERISTICS PWM INPUT ELECTRICAL CHARACTERISTICS REFERENCE (REF) ELECTRICAL CHARACTERISTICS STATUS OUTPUT (ST) ELECTRICAL CHARACTERISTICS STATUS DELAY (D) ELECTRICAL CHARACTERISTICS TL4242 SLVS641A – APRIL 2008 – REVISED MAY 2009 .............................................................................................................................................................. www.ti.com over recommended operating free-air temperature range, VI = 13.5 V, RREF = 0.47 Ω, VPWM,H, TJ = –40°C to 150°C, all voltages with respect to ground (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VQ – VREF (1) = 6.6 V 357 376 395 VQ – VREF = 6.6 V, RREF = 1 Ω 168 177 185 IQ Output current mA VQ – VREF = 6.6 V, RREF = 0.39 Ω 431 454 476 VQ – VREF = 5.4 V to 7.8 V, VI = 9 V to 16 V 357 376 395 IQmax Output current limit RREF = 0 Ω 600 mA Vdr Drop voltage IQ = 300 mA 0.35 0.7 V (1) VQ – VREF equals the forward voltage sum of the connected LEDs (see Figure 3). over recommended operating free-air temperature range, VI = 13.5 V, RREF = 0.47 Ω, VPWM,H, TJ = –40°C to 150°C, all voltages with respect to ground (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VPWM, High-level PWM voltage 2.6 V H VPWM, Low-level PWM voltage 0.7 V L IPWM,H High-level PWM input current VPWM = 5 V 220 500 µA IPWM,L Low-level PWM input current VPWM = 0 V –1 1 µA tPWM,O Delay time, turn on 70% of IQnom, See Figure 6 0 15 40 µs N tPWM,O Delay time, turn off 30% of IQnom, See Figure 6 0 15 40 µs FF over recommended operating free-air temperature range, VI = 13.5 V, RREF = 0.47 Ω, VPWM,H, TJ = –40°C to 150°C, all voltages with respect to ground (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VREF Reference voltage RREF = 0.39 Ω to 1 Ω 168 177 185 mV IREF Reference input current VREF = 180 mV –1 0.1 1 µA over recommended operating free-air temperature range, VI = 13.5 V, RREF = 0.47 Ω, VPWM,H, TJ = –40°C to 150°C, all voltages with respect to ground (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIQL Lower status-switching threshold ST = L 15 25 mV VIQH Upper status-switching threshold ST = H 30 40 mV VSTL Low-level status voltage IST = 1.5 mA 0.4 V ISTLK Leakage current VST = 5 V 5 µA over recommended operating free-air temperature range, VI = 13.5 V, RREF = 0.47 Ω, VPWM,H, TJ = –40°C to 150°C, all voltages with respect to ground (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tSTHL Delay time, status reaction CD = 47 nF, ST H→L 6 10 14 ms tSTLH Delay time, status release CD = 47 nF, ST L→H 10 20 µs 4 Submit Documentation Feedback Copyright © 2008–2009, Texas Instruments Incorporated |
类似零件编号 - TL4242_09 |
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类似说明 - TL4242_09 |
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