Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
TPS51315 Datasheet(PDF) 4 Page - Texas Instruments |
|
TPS51315 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 33 page Not Recommended for New Designs TPS51315 SLUS881B – MAY 2009 – REVISED AUGUST 2012 www.ti.com ELECTRICAL CHARACTERISTICS over recommended free-air temperature range (unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT V5IN current, TA = 25°C, No Load, IV5IN V5IN supply current 0 1 μA EN_PSV = 5V, VVFB = 0.75 V, VLL = 0.5 V V5FILT current, TA = 25°C, No Load, IV5FILT V5FILT supply current 400 μA VEN_PSV = 5 V, VVFB = 0.75 V, LL = 0.5 V V5IN current, TA = 25°C, No Load, IV5INSDN V5IN shutdown current 0 1 μA VEN_PSV = 0 V V5FILT current, TA = 25°C, No Load, IV5FILTSDN V5FILT shutdown current 1.5 4.5 7.5 μA VEN_PSV = 0 V VOUT AND VREF VOLTAGES VOUT Output voltage Adjustable output range 0.75 5.5 V VVFB VFB regulation voltage VFB voltage 751 mV TA = 25°C, bandgap initial accuracy –0.9% 0.9% VVFB_TOL VFB regulation voltage tolerance 0°C ≤ TA ≤ 85°C –1.3% 1.3% –40°C ≤ TA ≤ 85°C –1.6% 1.6% IVFB VFB input current VVFB = 0.75 V, TA = 25°C –0.025 μA RDischg VOUT_DS discharge resistance VEN_PSV = 0 V, VOUT_DS = 0.75 V 20 Ω HOUSEKEEPING CLOCK, ON-TIME TIMER, and INTERNAL SOFT START TONN Nominal on-time VIN = 10 V, VOUT = 2.5 V, RT(on) = 250 kΩ 1115 ns TONF Fast switch on-time VIN = 10 V, VOUT = 2.5 V, RT(on) = 100 kΩ 865 ns TONS Slow switch on-time VIN = 10 V, VOUT = 2.5 V, RT(on) = 400 kΩ 1515 ns TON Minimum on-time VIN = 10 V, VOUT = 0.75 V, RT(on) = 100 kΩ (1) 170 200 ns TA = 25°C, VVFB = 0.75 V, VLL = –0.1V, TOFF(min) Minimum off-time 385 ns VTRIP = OPEN TSS Internal soft-start time TA = 25°C, VEN_PSV > 3 V 1.06 ms f CLK Clock frequency Soft-start, UVP, OVP, PGOOD(2) 240 250 260 kHz INTERNAL BST DIODE VFBST Forward voltage VV5IN-VBST, IF = 10 mA, TA = 25°C 0.7 0.8 0.9 V IVBSTLK VBST leakagecurrent VVBST = 26 V, LL = 20 V, TA = 25°C 0.1 1 μA PROTECTIONS: OVERCURRENT LIMIT (OCL), UNDERCURRENT LIMIT (UCL) (VTRIP-GND– VPGND-LL) voltage VOCL(off) Overcurrent limit comparator offset –10 0 10 mV VTRIP-GND = 60 mV (VTRIP-GND– VLL-PGND) voltage VUCL(off) Undercurrent limit comparator offset –9.5 0.5 10.5 mV VTRIP-GND = 60 mV, EN_PSV=FLOAT VZC(off) Zero crossing comparator offset VPGND-LL voltage, V EN_PSV = 3.3V –9.5 0.5 10.5 mV VRTRIP Current limit threshold setting range VTRIP-GND voltage (2) , T A = 25°C 30 mV ITRIP TRIP source current VTRIP < 0.3 V, TA = 25°C 9 10 11 μA Trip source current temperature TCITRIP TA = 25°C (2) 4500 ppm/°C coefficient (1) Design constraint. Ensure actual on-time is greater than the maxiumum value (design RT(on) so that the minimum tolerance is 100 kΩ). (2) Ensured by design. Not production tested. 4 Submit Documentation Feedback Copyright © 2009–2012, Texas Instruments Incorporated Product Folder Links: TPS51315 |
Número de pieza similar - TPS51315_14 |
|
Descripción similar - TPS51315_14 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |