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BQ2148B-KT Datasheet(PDF) 7 Page - Texas Instruments |
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BQ2148B-KT Datasheet(HTML) 7 Page - Texas Instruments |
7 / 8 page 7 bq2148 Preliminary DC Electrical Characteristics (T A =TOPR) Symbol Parameter Minimum Typical Maximum Unit Conditions/Notes VOP Operating voltage, B1P to B4N 4.0 - 18 V ICCA Operating current - - 350 µA RON On resistance, B1P to POS - - 50 m Ω TA = 25 °C, VOP = 10V DC Thresholds (TA =TOPR) Symbol Parameter Value Tolerance Unit Notes VOV Overvoltage threshold 4.25 ± 50mV V VCE Charge enable voltage VOV - 100mV ± 50mV V VUV Undervoltage limit 2.25 ± 100mV V IOC Overcurrent limit 3.4 A TA = 25 °C 3.8 A TA = 60 °C tUVD Undervoltage delay 950 ±50% ms TA = 30°C VCD Charge detect threshold 70 -60, +80 mV tOVD Overvoltage delay 950 ±50% ms TA = 30°C tOCD Overcurrent delay 12 ±60% ms TA = 30°C Note: The thresholds above reflect the operation of a bq2148 using the standard bq2058 IC (VOV = 4.25V). Specify other versions of the bq2058 by indicating the appropriate VOV threshold in Table 1. LED Option: L = LEDs plus switch Blank = No LEDs or switch Notes: 1. Requires configuration sheet (Table 1) 2. Example production part number: bq2148LB-001 Ordering Information bq2148 B — Customer Code: Blank = Sample or Pre-production1 KT = Evaluation system XXX = Customer-specific; assigned by Unitrode2 Package Option: B = Board-level product Device: Smart Battery Module with LEDs and Pack Supervisor |
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