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RT9527 Datasheet(PDF) 5 Page - Richtek Technology Corporation |
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RT9527 Datasheet(HTML) 5 Page - Richtek Technology Corporation |
5 / 14 page RT9527 5 DS9527-00 May 2012 www.richtek.com © Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Parameter Symbol Test Conditions Min Typ Max Unit Pre-Charge Current Factor KCHG_P ICHG_P = KCHG_P / RISET 30 60 90 A Ω Pre-Charge BAT Pre-Charge Threshold VPRECH VBAT Falling 2.7 2.8 2.9 V BAT Pre-Charge Threshold Hysteresis ΔVPRECH -- 200 -- mV Charge Termination Termination Current Ratio ITERMI VBAT > VPREC, ICHG < ITERMI, CHG = L to H 5 10 15 % Protection Thermal Regulation TREG -- 125 -- °C Over Voltage Protection VOVP 6.2 6.5 6.8 V Over Voltage Protect Hysteresis ΔVOVP -- 0.2 -- V ISET Pin Short Protection RSHORT 375 500 625 Ω NTC Cold Temperature Fault Threshold Voltage VCOLD Rising Threshold 60 61 62 %VIN Cold Temperature Fault Threshold Hysteresis ΔVCOLD -- 2 -- %VIN Hot Temperature Fault Threshold Voltage VHOT Falling Threshold 29 30 31 %VIN Hot Temperature Fault Threshold Hysteresis ΔV HOT -- 2 -- %VIN Timer Pre-Charge Fault Time tPCHG CTIMER = 1μF (1 / 8 x tFCHG) 1440 1800 2160 s Fast-Charge Fault Time tFCHG CTIMER = 1μF 11520 14400 17280 s Other PGOOD Pull Down Voltage VPGOOD IPGOOD = 5mA -- 200 -- mV CHG Pull Down Voltage VCHG ICHG = 5mA -- 200 -- mV PGOOD Deglitch Time tPGOOD Time measured from the edge VIN = 0V to 5V in 1μs to PGOOD = L -- 2 -- ms Input Over Voltage Blanking Time tOVP -- 50 -- μs Input Over Voltage Recovery Time tOVP_R -- 2 -- ms Pre-Charge to Fast-Charge Deglitch Time tPF -- 25 -- ms Fast-charge to Pre-Charge Deglitch Time tFP -- 25 -- ms Termination Deglitch Time tTERMI -- 25 -- ms Recharge Deglitch Time tRECHG -- 100 -- ms Sleep Deglitch Time tNO-IN -- 25 -- ms Pack Temperature Fault Detection Deglitch Time tTS -- 25 -- ms |
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