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bq24193 Datasheet(PDF) 11 Page - Texas Instruments |
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bq24193 Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 46 page  bq24190, bq24192 bq24192I, bq24193 www.ti.com SLUSAW5A – JANUARY 2012 – REVISED OCTOBER 2012 ELECTRICAL CHARACTERISTICS (continued) VVBUS_UVLOZ < VVBUS < VACOV and VVBUS > VBAT + VSLEEP, TJ = –40°C to 125°C and TJ = 25°C for typical values unless other noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS BAT OVER-VOLTAGE PROTECTION VBATOVP Battery over-voltage threshold VBAT rising, as percentage of VBAT_REG 104% VBATOVP_HYST Battery over-voltage hysteresis VBAT falling, as percentage of VBAT_REG 2% Battery over-voltage deglitch time to disable tBATOVP 1 µs charge THERMAL REGULATION AND THERMAL SHUTDOWN TJunction_REG Junction temperature regulation accuracy REG06[1:0] = 11 115 120 125 °C TSHUT Thermal shutdown rising temperature Temperature increasing 160 °C TSHUT_HYS Thermal shutdown hysteresis 30 °C Thermal shutdown rising deglitch Temperature increasing delay 1 ms Thermal shutdown falling deglitch Temperature decreasing delay 1 ms COLD/HOT THERMISTER COMPARATOR (bq24190,bq24192,bq24192I) Cold temperature threshold, TS pin voltage VLTF Charger suspends charge. As Percentage to VREGN 73% 73.5% 74% rising threshold Cold temperature hysteresis, TS pin voltage VLTF_HYS As Percentage to VREGN 0.2% 0.4% 0.6% falling Hot temperature TS pin voltage falling VHTF As Percentage to VREGN 46.6% 47.2% 48.8% threshold Cut-off temperature TS pin voltage falling VTCO As Percentage to VREGN 44.2% 44.7% 45.2% threshold Deglitch time for temperature out of range VTS > VLTF, or VTS < VTCO, or VTS < VHTF 10 ms detection JEITA THERMISTER COMPARATOR (bq24193) T1 (0°C) threshold, Charge suspended T1 VT1 VTS rising, As Percentage to VREGN 70.2% 70.8% 71.4% below this temperature. Charge back to ICHG/2 and 4.2V above this VT1_HYS Hysteresis, VTS falling 0.6% temperature T2 (10°C) threshold, Charge back to ICHG/2 VT2 VTS rising, as percentage of VREGN 68.0% 68.6% 69.2% and 4.2V below this temperature Charge back to ICHG and 4.2V above this VT2_HYS Hysteresis, VTS falling 0.8% temperature T3 (45°C) threshold, Charge back to ICHG VT3 VTS falling, as percentage of VREGN 55.5% 56.1% 56.7% and 4.05V above this temperature Charge back to ICHG and 4.2V below this VT3_HYS Hysteresis, VTS rising 0.8% temperature T5 (60°C) threshold, charge suspended VT5 VTS falling, as percentage of VREGN 47.6% 48.1% 48.6% above this temperature Charge back to ICHG and 4.05V below this VT5_HYS Hysteresis, VTS rising 1.2% temperature CHARGE OVER-CURRENT COMPARATOR IHSFET_OCP HSFET over-Current threshold 5.3 7 A IBATFET_OCP System over load threshold 9 A CHARGE UNDER-CURRENT COMPARATOR (CYCLE-BY-CYCLE) LSFET charge under-current falling VLSFET_UCP From sync mode to non-sync mode 100 mA threshold PWM OPERATION FSW PWM Switching frequency, and digital clock 1300 1500 1700 kHz DMAX Maximum PWM duty cycle 97% VBTST-VSW when LSFET refresh pulse is 3.6 requested, VBUS=5V VBTST_REFRESH Bootstrap refresh comparator threshold V VBTST-VSW when LSFET refresh pulse is 4.2 requested, VBUS>6V Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: bq24190 bq24192 bq24192I bq24193 |
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