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TPS61500PWP Datasheet(PDF) 4 Page - Texas Instruments |
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TPS61500PWP Datasheet(HTML) 4 Page - Texas Instruments |
4 / 19 page ELECTRICAL CHARACTERISTICS TPS61500 SLVS893 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com FSW = 1.2MHz(Rfreq=80k Ω), Vin=3.6V, CRTL=Vin, 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 VIN Input voltage range 2.9 18 V IQ Operating quiescent current into Vin Device PWM switching without load,Vin 3.5 mA =3.6V ISD Shutdown current EN = GND, Vin = 3.6 V 1.5 µA VUVLO Under-voltage lockout threshold VIN falling 2.5 2.7 V Vhys Under-voltage lockout hysteresis 130 mV ENABLE AND REFERENCE CONTROL Venh EN logic high voltage Vin = 2.9 V to 18 V 1.2 V Venl EN logic low voltage Vin = 2.9 V to 18 V 0.4 V Ren EN pull down resistor 400 800 1600 k Ω Toff Shutdown delay, SS discharge EN high to low 10 ms VOLTAGE AND CURRENT CONTROL VREF Voltage feedback regulation voltage 195 200 205 mV IFB Voltage feedback input bias current 200 nA VEA_OFF Error amplifier offset -10 0 10 mV Isink Comp pin sink current VFB = VREF+200 mV, VCOMP = 1 V 40 µA Isource Comp pin source current VFB = VREF –200 mV, VCOMP = 1 V 40 µA VCCLP Comp pin Clamp Voltage High Clamp 3 V Low Clamp 0.75 VCTH Comp pin threshold Duty cycle = 0% 0.95 V Gea Error amplifier transconductance 240 340 440 µmho Rea Error amplifier output resistance 10 M Ω fea Error amplifier crossover frequency 500 kHz FREQUENCY fS Oscillator frequency Rfreq = 480 k Ω 0.16 0.21 0.26 MHz Rfreq = 80 k Ω 1.0 1.2 1.4 Rfreq = 40 k Ω 1.76 2.2 2.64 Dmax Maximum duty cycle Rfreq = 80 k Ω 89% 93% VFREQ FREQ pin voltage 1.229 V Tmin_on Minimum on pulse width Rfreq = 80 k Ω 60 ns Rdim_fil Dimming filter resistance 25 k Ω POWER SWITCH RDS(ON) N-channel MOSFET on-resistance VIN = VGS = 3.6 V 0.13 0.25 Ω VIN = VGS = 3.0 V 0.3 ILN_NFET N-channel leakage current VDS = 40 V, TA = 25°C 1 µA OC, OVP and SS ILIM N-Channel MOSFET current limit D = Dmax 3 3.8 5 A ISS Soft start bias current Vss = 0 V 6 µA VOVP Over voltage protection threshold 1.192 1.229 1.266 V VOVP_hys Over voltage protection hysteresis 40 mV THERMAL SHUTDOWN Tshutdown Thermal shutdown threshold 160 °C T hysteresis Thermal shutdown threshold hysteresis 15 °C 4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): TPS61500 |
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