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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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BQ25708 Folha de dados(PDF) 13 Page - Texas Instruments |
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BQ25708 Folha de dados(HTML) 13 Page - Texas Instruments |
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13 / 77 page  13 bq25708 www.ti.com SLUSCU2 – NOVEMBER 2017 Product Folder Links: bq25708 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IBATOVP Discharge current during BATOVP on SRP and SRN 20 mA tBATOVP_RISE Overvoltage rising deglitch to turn off BATDRV to disable charge 20 ms CONVERTER OVER-CURRENT COMPARATOR (Q2) VOCP_limit_Q2 Converter Over-Current Limit Reg0x31[5]=1 150 mV Reg0x31[5]=0 210 VOCP_limit_SYSSH ORT_Q2 System Short or SRN<2.5 V Reg0x31[5]=1 45 mV Reg0x31[5]=0 60 CONVERTER OVER-CURRENT COMPARATOR (ACX) VOCP_limit_ACX Converter Over-Current Limit Reg0x31[4]=1 150 mV Reg0x31[4]=0 280 VOCP_limit_SYSSH ORT_ ACX System Short or SRN<2.5 V Reg0x31[4]=1 90 mV Reg0x31[4]=0 150 THERMAL SHUTDOWN COMPARATOR TSHUT_RISE Thermal shutdown rising temperature Temperature increasing 155 °C TSHUTF_FALL Thermal shutdown falling temperature Temperature reducing 135 °C TSHUT_HYS Thermal shutdown hysteresis 20 °C tSHUT_RDEG Thermal shutdown rising deglitch 100 µs tSHUT_FHYS Thermal shutdown falling deglitch 12 ms VSYS PROCHOT COMPARATOR VSYS_PROCHOT VSYS threshold falling threshold Reg0x36[7:6] = 00, 1 s 2.85 V Reg0x36[7:6] = 00, 2–4 s 5.75 V Reg0x36[7:6] = 01, 1 s 2.95 3.1 3.25 V Reg0x36[7:6] = 01, 2–4 s 5.8 5.95 6.1 V Reg0x36[7:6] = 10, 1 s 3.3 V Reg0x36[7:6] = 10, 2–4 s 6.25 V Reg0x36[7:6] = 11, 1 s 3.5 V Reg0x36[7:6] = 11, 2–4 s 6.5 V tSYS_PRO_RISE_DEG VSYS rising deglitch for throttling 8 µs ICRIT PROCHOT COMPARATOR VICRIT_PRO Input current rising threshold for throttling as percentage above ILIM2 (REG0x33[15:11]) Reg0x36[15:11] = 00000 105% 110% 116% Reg0x36[15:11] = 01001 142% 150% 155% Reg0x36[15:11] = 11110 410% 430% 455% INOM PROCHOT COMPARATOR VINOM_PRO INOM rising threshold as percentage of IIN (REG0x3F()) 105% 110% 116% IDCHG PROCHOT COMPARATOR VIDCHG_PRO IDCHG threshold for throttling for IDSCHG of 6 A Reg0x38 [15:10]=001100 6144 mA 95% 102% |
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