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GRM21BR60J226ME39L Datasheet(PDF) 3 Page - Texas Instruments |
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GRM21BR60J226ME39L Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 27 page  TPS51463 www.ti.com SLUSAX2 – FEBRUARY 2012 RECOMMENDED OPERATING CONDITIONS VALUE UNIT MIN TYP MAX VIN, EN, MODE –0.1 6.5 V5DRV, V5FILT, VBST(with respect to SW) –0.1 5.5 Input voltage range VBST –0.1 11.75 V VID0, VID1 –0.1 3.5 VOUT –0.8 2.0 SW –0.8 6.5 COMP, SLEW, VREF –0.1 3.5 Output voltage range V PGOOD –0.1 6.5 PGND –0.1 0.1 Ambient temperature range, TA -40 85 °C ELECTRICAL CHARACTERISTICS over recommended free-air temperature range, VVIN = 5.0 V, VV5DRV = VV5FILT = 5 V, MODE = OPEN, PGND = GND (unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX UNIT SUPPLY: VOLTAGE, CURRENTS AND 5 V UVLO IVINSD Input voltage shutdown current EN = 'LO' 0.02 5 µA V5VIN 5-V supply voltage V5DRV and V5FILT voltage range 4.5 5.0 5.5 V I5VIN 5-V supply current EN =’HI’, V5DRV + V5FILT supply current 1.6 3.0 mA I5VINSD 5-V shutdown current EN = ‘LO’, V5DRV + V5FILT shutdown current 10 50 µA VV5UVLO V5FILT pin undervoltage lockout Ramp up; EN = 'HI' 4.2 4.3 4.5 V V5FILT undervoltage lockout VV5UVHYS Falling hysteresis 440 mV hysteresis VVREFUVLO Reference undervoltage lockout(1) Rising edge of VREF, EN = 'HI' 1.8 V VVREFUVHYS Reference undervoltage hysteresis(1) 100 mV VPOR5VFILT Reset OVP latch is reset by V5FILT falling below the reset threshold 1.5 2.3 3.1 V VOLTAGE FEEDBACK LOOP: VREF, VOUT, AND VOLTAGE GM AMPLIFIER VOUTTOL Output voltage accuracy VVOUT = 0.85 V –1.5% 0% 1.5% VVREF Reference voltage IVREF = 0 µA, TA = 25°C 2 V GM Transconductance 1 mS VDM Differential mode input voltage 0 80 mV ICOMPSRC COMP pin maximum sourcing current VCOMP = 2 V –80 µA VOFFSET Input offset voltage TA = 25°C –5 0 5 mV RDSCH Output voltage discharge resistance 42 Ω f–3dbVL –3dB Frequency(1) 6 MHz CURRENT SENSE: CURRENT SENSE AMPLIFIER, OVER CURRENT AND ZERO CROSSING Gain from the current of the low-side FET to PWM comparator ACSINT Internal current sense gain 43 50 59 mV/A when PWM = "OFF" IOCL Positive overcurrent limit (valley) 4.0 5.5 A IOCL(neg) Negative overcurrent limit (valley) –5 A VZXOFF Zero crossing comp internal offset 0 mV DRIVERS: BOOT STRAP SWITCH RDSONBST Internal BST switch on-resistance IVBST = 10 mA, TA = 25°C 5 10 Ω IBSTLK Internal BST switch leakage current VVBST = 14 V, VSW = 7 V, TA = 25°C 1 µA (1) Ensured by design, not production tested. Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS51463 |
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