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RT5047BF Datasheet(PDF) 5 Page - Richtek Technology Corporation |
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RT5047BF Datasheet(HTML) 5 Page - Richtek Technology Corporation |
5 / 17 page RT5047BF Copyright © 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5047BF-00 December 2017 www.richtek.com 5 Parameter Symbol Test Conditions Min Typ Max Unit Ripple and Noise on LNB Output VRIP_PP 20MHz bandwidth limit (Note 6) -- 20 -- mVPP Load Regulation VOUT_LOAD VLNB = 13.3V, ILNB = 50mA to 450mA -- 38 76 mV VLNB = 18.3V, ILNB = 50mA to 450mA -- 45 90 Line Regulation VOUT_LINE VIN = 9 to 14V, VLNB = 13.3V, ILNB = 50mA 10 -- 10 mV VIN = 9 to 14V, VLNB = 18.3V, ILNB = 50mA 10 -- 10 Protection Output Over-Current Limit ILIM_LNB1 VLNB = 13.3V/18.3V 500 550 650 mA Output Over-Current Disable Time tDIS_ON VLNB short to GND -- 6 -- ms Output Over-Current Disable Time tDIS_OFF VLNB short to GND (Note 6) -- 1800 -- ms VIN Under-Voltage Lockout Threshold VUVLO VIN falling -- 7.35 -- V VIN Turn On Threshold VIN_TH VIN rising -- 7.7 8 V VIN Under-Voltage Lockout Hysteresis VUVLOHYS -- 350 -- mV OTP Threshold TOTP -- 140 -- C OTP Hysteresis TOTPHYS -- 15 -- C TONE TONE Frequency fTONE 20 22 24 kHz TONE Amplitude, Peak to Peak VTONE_PP ILNB = 50 to 450mA, CLNB = 200nF 550 700 900 mVPP TONE Duty Cycle DCTONE ILNB = 0 to 450mA, CLNB = 570nF 40 50 60 % TONE Rise Time tRTONE ILNB = 0 to 450mA, CLNB = 570nF 5 10 15 s TONE Fall Time tFTONE ILNB = 0 to 450mA, CLNB = 570nF 5 10 15 s TONE Logic Input VTONE_H 1.2 -- -- V VTONE_L -- -- 0.4 V TONE Input Leakage ITONELKG -- 5 10 A ENABLE, SEL FAULT Pins EN Logic Input VEN_H 1.2 -- -- V VEN_L -- -- 0.4 V EN Input Leakage IENLKG -- 5 10 A SEL Logic Input VSEL_H 1.2 -- -- V VSEL_L -- -- 0.4 V SEL Input Leakage ISELLKG -- 5 10 A FAULT Logic Low VFAULT_L -- -- 0.4 V FAULT Input Leakage VFAULTLKG -- 5 10 A |
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