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TPS61042DRBR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS61042DRBR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 27 page ![]() www.ti.com ELECTRICAL CHARACTERISTICS TPS61042 SLVS441C – DECEMBER 2002 – REVISED MARCH 2007 V I = 3.6 V, CTRL= VI, TA = -40°C to + 85°C, typical values are at TA= 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Supply current VI Input voltage range 1.8 6.0 V I(Q) Operating quiescent current into VIN IO = 0 mA, not switching 38 65 µA IO(sd) Shutdown current CTRL = GND 0.1 1 µA VUVLO Under-voltage lockout threshold VI falling 1.5 1.7 V CTRL VIH CTRL high level input voltage 1.3 V VIL CTRL low level input voltage 0.3 V IIkg CTRL input leakage current CTRL = GND or VIN 0.1 µA ton Minimum CTRL pulse width to enable CTRL = low to high 50 us toff Minimum CTRL pulse width to disable CTRL = high to low 10 32 ms f(CTRL) PWM switching frequency applied to 0.1 50 kHz CTRL D(CTRL) PWM duty cycle applied to CTRL 1% 100% Power switch and current limit (SW) VS Maximum switch voltage 30 V rds(ON) MOSFET on-resistance VI = 3.6 V; I(SW) = 200 mA 300 600 m Ω Ilkg MOSFET leakage current V(SW) = 28 V 0.1 10 µA ILIM MOFSET current limit 400 500 600 mA LED switch and current limit (LED) VS Maximum switch voltage 30 V rds(ON) MOSFET on-resistance VI = 3.6 V; IS = 20 mA 1 2 Ω Ilkg MOSFET leakage current V(LED)= 28 V 0.1 10 µA Output VO Output voltage range VI 27.5 V I(FB) Feedback input bias current(1) V(FB) = 0.252 V 100 nA VFB Feedback trip point voltage 1.8 V ≤ V I≤ 6 V 244 252 260 mV V(OVP) Output overvoltage protection VO rising 27.5 29 30 V Vhys(OVP) Output overvoltage protection hysteresis 5 7 V I(OVP) OVP input current VO = 15 V 9 12 µA (1) The feedback input is high impedance MOSFET Gate input. 3 Submit Documentation Feedback |
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