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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) 12 Page - Texas Instruments |
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BQ25708 Folha de dados(HTML) 12 Page - Texas Instruments |
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12 / 77 page  12 bq25708 SLUSCU2 – NOVEMBER 2017 www.ti.com 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 BATTERY UNDER VOLTAGE LOCKOUT COMPARATOR VVBAT_UVLOZ VBAT undervoltage rising threshold VSRN rising 2.35 2.55 2.75 V VVBAT_UVLO VBAT undervoltage falling threshold VSRN falling 2.2 2.4 2.6 V VVBAT_UVLO_HYST VBAT undervoltage hysteresis 150 mV BATTERY LOWV COMPARATOR (Pre-charge to Fast Charge Thresold for 1S) VBATLV_FALL BATLOWV falling threshold 1 s 2.80 V VBATLV_RISE BATLOWV rising threshold 3.00 V VBATLV_RHYST BATLOWV hysteresis 200 mV INPUT OVER-VOLTAGE COMPARATOR (ACOVP) VACOV_RISE VBUS overvoltage rising threshold VBUS rising 25 26 27 V VACOV_FALL VBUS overvoltage falling threshold VBUS falling 24 24.5 25 V VACOV_HYST VBUS overvoltage hysteresis 1.5 V tACOV_RISE_DEG VBUS overvoltage rising deglitch VBUS rising to stop converter 100 µs tACOV_FALL_DEG VBUS overvoltage falling deglitch VBUS falling to start converter 1 ms INPUT OVER CURRENT COMPARATOR (ACOC) VACOC ACP to ACN rising threshold, w.r.t. ILIM2 in REG0x33[15:11] Voltage across input sense resistor rising, Reg0x31[2] = 1 195% 210% 225% VACOC_FLOOR Measure between ACP and ACN Set IDPM to minimum 44 50 56 mV VACOC_CEILING Measure between ACP and ACN Set IDPM to maximum 172 180 188 mV tACOC_DEG_RISE Rising deglitch time Deglitch time to trigger ACOC 250 µs tACOC_RELAX Relax time Relax time before converter starts again 250 ms SYSTEM OVER-VOLTAGE COMPARATOR (SYSOVP) VSYSOVP_RISE System overvoltage rising threshold to turn off converter 1 s 4.85 5 5.1 V 2 s 11.7 12 12.2 V 3s 18 18.5 19 V VSYSOVP_FALL System overvoltage falling threshold 1 s 4.8 V 2 s 11.5 V 3s 18 V ISYSOVP Discharge current when SYSOVP stop switching was triggered on SYS 20 mA BAT OVER-VOLTAGE COMPARATOR (BATOVP) VBATOVP_RISE Overvoltage rising threshold as percentage of VBAT_REG in REG0x15() 1 s, 4.2 V 102.5% 104% 105.7% 2 s - 4 s 102.5% 104% 105% VBATOVP_FALL Overvoltage falling threshold as percentage of VBAT_REG in REG0x15() 1 s 100% 102% 104% 2 s - 4 s 100% 102% 103% VBATOVP_HYST Overvoltage hysteresis as percentage of VBAT_REG in REG0x15() 1 s 2% 2 s - 4 s 2% |
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