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TPS6116XA Datasheet(PDF) 6 Page - Texas Instruments |
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TPS6116XA Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 31 page  6 TPS61160A, TPS61161A SLVS937C – MARCH 2009 – REVISED JULY 2016 www.ti.com Product Folder Links: TPS61160A TPS61161A Submit Documentation Feedback Copyright © 2009–2016, Texas Instruments Incorporated 6.6 Electrical Characteristics VIN = 3.6 V, CTRL = VIN; for Min/Max values 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, VIN 2.7 18 V IQ Operating quiescent current into VIN Device PWM switching no load 1.8 mA ISD Shutdown current CRTL = GND, VIN = 4.2 V 1 μA UVLO Undervoltage lockout threshold VIN falling 2.2 2.5 V Vhys Undervoltage lockout hysteresis 70 mV ENABLE AND REFERENCE CONTROL V(CTRLh) CTRL logic high voltage VIN = 2.7 V to 18 V 1.2 V V(CTRLl) CTRL logic low voltage VIN = 2.7 V to 18 V 0.4 V R(CTRL) CTRL pull down resistor 400 800 1600 k Ω toff CTRL pulse width to shutdown CTRL high to low 2.5 ms VOLTAGE AND CURRENT CONTROL VREF Voltage feedback regulation voltage 196 200 204 mV V(REF_PWM) Voltage feedback regulation voltage under brightness control VFB = 50 mV 47 50 53 mV VFB = 20 mV 17 20 23 IFB Voltage feedback input bias current VFB = 200 mV 2 μA fS Oscillator frequency 500 600 700 kHz Dmax Maximum duty cycle VFB = 100 mV 90% 93% tmin_on Minimum on pulse width 40 ns Isink Comp pin sink current 100 μA Isource Comp pin source current 100 μA Gea Error amplifier transconductance 240 320 400 μmho Rea Error amplifier output resistance 6 M Ω fea Error amplifier crossover frequency 5 pF connected to COMP 500 kHz POWER SWITCH RDS(on) N-channel MOSFET on-resistance VIN = 3.6 V 0.3 0.6 Ω VIN = 3 V 0.7 ILN_NFET N-channel leakage current VSW = 35 V, TA = 25°C 1 μA OC and OLP ILIM N-Channel MOSFET current limit D = Dmax 0.56 0.7 0.84 A ILIM_Start Start up current limit D = Dmax 0.4 A tHalf_LIM Time step for half current limit 5 ms Vovp Open LED protection threshold Measured on the SW pin, TPS61160A TPS61161A 25 37 26 38 27 39 V V(FB_OVP) Open LED protection threshold on FB Measured on the FB pin, percentage of Vref, Vref = 200 mV and 20 mV 50% tREF VREF filter time constant 180 μs tstep VREF ramp up time 213 μs THERMAL SHUTDOWN Tshutdown Thermal shutdown threshold 160 °C Thysteresis Thermal shutdown threshold hysteresis 15 °C |
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