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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TPS40170RGYR Fiches technique(PDF) 4 Page - Texas Instruments |
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TPS40170RGYR Fiches technique(HTML) 4 Page - Texas Instruments |
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4 / 49 page  TPS40170 SLUS970 – MARCH 2011 www.ti.com ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for -40 ºC ≤ TJ ≤ 125ºC, VVIN=12 V PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY VVIN Input voltage range 4.5 60 V ISD Shutdown current VENABLE < 100 mV 1 2.5 µA IQQ Operating current, drivers not switching VENABLE ≥ 2 V, fSW = 300 kHz 4.5 mA ENABLE VDIS ENABLE pin voltage to disable the device 100 mV VEN ENABLE pin voltage to enable the device 600 mV IENABLE ENABLE pin source current 300 nA 8-V AND 3.3-V REGULATORS VENABLE ≥ 2 V, 8.2 V < VVIN ≤ 60 V, VVBP 8-V regulator output voltage 7.8 8.0 8.3 V 0 mA < IIN < 20 mA 8-V regulator dropout voltage, 4.5 < VVIN ≤ 8.2 V, VEN ≥ 2.0 V, VDO 110 200 mV VVIN-VVBP IIN = 10 mA VENABLE ≥ 2 V, 4.5 V < VVIN ≤ 60 V, VVDD 3.3-V regulator output voltage 3.22 3.30 3.42 V 0 mA < IIN < 5 mA FIXED AND PROGRAMMABLE UVLO Programmable UVLO ON voltage (at UVLO VUVLO VENABLE ≥ 2 V 878 900 919 mV pin) IUVLO Hysteresis current out of UVLO pin VENABLE ≥ 2 V , UVLO pin > VUVLO 4.06 5.00 6.20 µA VBPON VBP turn-on voltage 3.85 4.40 V VBPOFF VBP turn-off voltage VENABLE ≥ 2 V, UVLO pin > VUVLO 3.60 4.05 VBPHYS VBP UVLO Hysteresis voltage 180 400 mV REFERENCE TJ = 25°C, 4.5 V < VVIN ≤ 60 V 594 600 606 Reference voltage (+ input of the error VREF mV amplifier) –40°C ≤ TJ ≤ 125ºC, 4.5 V < VVIN ≤ 60 V 591 600 609 OSCILLATOR Range (typical) 100 600 RRT = 100 kΩ, 4.5 V <VVIN ≤ 60 V 90 100 110 fSW Switching frequency kHz RRT = 31.6 kΩ, 4.5 V <VVIN ≤ 60 V 270 300 330 RRT = 14.3 kΩ, 4.5 V <VVIN ≤ 60 V 540 600 660 VVALLEY Valley voltage 0.7 1 1.2 V KPWM (1) PWM Gain (VVIN / VRAMP) 4.5 V < VVIN ≤ 60 V 14 15 16 V/V PWM AND DUTY CYCLE VVIN = 4.5 V, fSW = 300 kHz 100 150 tON(min) (1) Minimum controlled pulse VVIN = 12 V, fSW = 300 kHz 75 100 ns VVIN = 60 V, fSW = 300 kHz 50 80 tOFF(max) (1) Minimum OFF time VVIN = 12V, fSW = 300 kHz 170 250 ns fSW = 100 kHz, 4.5 V < VVIN ≤ 60 V 95% DMAX (1) Maximum duty cycle FSW = 300 kHz, 4.5 V < VVIN ≤ 60 V 91% fSW = 600 kHz, 4.5 V < VVIN ≤ 60 V 82% (1) Ensured by design, not production tested. 4 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS40170 |
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