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TPS25944ARVCR Datasheet(PDF) 6 Page - Texas Instruments |
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TPS25944ARVCR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 54 page TPS25942A, TPS25942L, TPS25944A, TPS25944L SLVSCE9A – JUNE 2014 – REVISED MARCH 2015 www.ti.com 8.5 Electrical Characteristics Conditions are –40°C ≤ TJ = TA ≤ 125°C, 2.7 V ≤ V(IN) ≤ 18 V, V(EN/UVLO) = 2 V, V(OVP) = V(DMODE) = V(PGTH) = 0 V, R(ILIM) = 150 k Ω, C(OUT) = 1 µF, C(dVdT) = OPEN, PGOOD = FLT = IMON = OPEN. Positive current into terminals. All voltages referenced to GND (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE AND INTERNAL UNDERVOLTAGE LOCKOUT V(IN) Operating Input Voltage 2.7 18 V V(UVR) Internal UVLO threshold, rising 2.2 2.3 2.4 V V(UVRhys) Internal UVLO hysteresis 105 116 125 mV V(EN/UVLO) = 2 V, V(IN) = 3 V 140 210 300 IQ(ON) Supply current, Enabled V(EN/UVLO) = 2 V, V(IN) = 12 V 140 199 260 µA V(EN/UVLO) = 2 V, V(IN) = 18 V 140 202 270 V(EN/UVLO)= 0 V, V(IN) = 3 V 4 8.6 15 IQ(OFF) Supply current, Disabled V(EN/UVLO)= 0 V, V(IN) = 12 V 6 15 20 µA V(EN/UVLO)= 0 V, V(IN) = 18 V 8 18.5 25 ENABLE AND UNDERVOLTAGE LOCKOUT (EN/UVLO) INPUT V(ENR) EN/UVLO threshold voltage, rising 0.97 0.99 1.01 V V(ENF) EN/UVLO threshold voltage, falling 0.9 0.92 0.94 V EN threshold voltage for Low IQ V(SHUTF) 0.3 0.47 0.63 V shutdown, falling EN hysteresis for low IQ shutdown, V(SHUTFhys) 66 mV hysteresis(1) IEN EN Input leakage current 0 V ≤ V(EN/UVLO) ≤ 18 V –100 0 100 nA OVER VOLTAGE PROTECTION (OVP) INPUT Overvoltage Threshold Voltage, V(OVPR) 0.97 0.99 1.01 V Rising, Overvoltage Threshold Voltage, V(OVPF) 0.9 0.92 0.94 V Falling I(OVP) OVP Input Leakage Current 0 V ≤ V(OVP) ≤ 5 V -100 0 100 nA DIODE MODE INPUT (DMODE): ACTIVE HIGH DMODE threshold voltage, rising 1.6 1.85 2 V V(DMODE) DMODE threshold voltage, falling 0.8 0.96 1.1 V I(DMODE) DMODE input leakage current 0.2 V ≤ V(DMODE) ≤ 18 V 0.6 1 1.25 µA OUTPUT RAMP CONTROL (dVdT) I(dVdT) dVdT charging current V(dVdT) = 0 V 0.85 1 1.15 µA R(dVdT) dVdT discharging resistance EN/UVLO = 0 V, I(dVdT) = 10 mA sinking 16 24 Ω V(dVdTmax) dVdT maximum capacitor voltage 2.6 2.88 3.1 V GAIN(dVdT) dVdT to OUT gain ΔV(OUT)/ΔV(dVdT) 11.65 11.9 12.05 V/V CURRENT LIMIT PROGRAMMING (ILIM) V(ILIM) ILIM bias voltage 0.87 V R(ILIM) = 150 kΩ, (V(IN) - V(OUT)) = 1 V 0.53 0.58 0.63 R(ILIM) = 88.7 kΩ, (V(IN) - V(OUT)) = 1 V 0.9 0.99 1.07 R(ILIM) = 42.2 kΩ, (V(IN) - V(OUT)) = 1 V 1.92 2.08 2.25 R(ILIM) = 24.9 kΩ, (V(IN) - V(OUT)) = 1 V 3.25 3.53 3.81 Current limit R(ILIM) = 20 kΩ, (V(IN) - V(OUT)) = 1 V 4.09 4.45 4.81 I(LIM) I(LIM) for TPS25942 (2) A R(ILIM) = 16.9 kΩ, (V(IN) - V(OUT)) = 1 V 4.78 5.2 5.62 I(FAULT) forTPS25944 (2) (3) R(ILIM) = OPEN, Open resistor current limit (Single Point 0.35 0.45 0.55 Failure Test: UL60950) R(ILIM) = SHORT, Shorted resistor current limit (Single 0.55 0.67 0.8 Point Failure Test: UL60950) DMODE = High; Non-ideal Diode Mode(1) 0.5 x I(LIM) (1) These parameters are provided for reference only and do not constitute part of TI's published device specifications for purposes of TI's product warranty. (2) Pulse-testing techniques maintain junction temperature close to ambient temperature. Thermal effects must be taken into account separately. (3) The TPS25942 limits current to the programmed I(LIM) level. TPS25944 does not limit current but runs the fault timer when I(LOAD) > I(LIM). 6 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: TPS25942A TPS25942L TPS25944A TPS25944L |
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