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BQ24258 Datasheet(PDF) 4 Page - Texas Instruments |
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BQ24258 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 45 page bq24257 bq24258 SLUSBG0B – FEBRUARY 2013 – REVISED JULY 2013 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT IN –1.3 20 V SW –0.7 12 V Pin voltage range (with respect to PGND) PMID, BOOT –0.3 20 V CSIN, BAT, DPB, LDO, SCL, SDA, STAT, D+, D–, CE, ISET, ILIM, VDPM –0.3 7 V BOOT relative to SW –0.3 5 V IN 2 A Output Current (Continuous) CSIN, BAT 4 A Output Sink Current STAT 5 mA Operating free-air temperature range –40 85 °C Junction temperature, TJ –40 125 °C Storage temperature, TSTG –65 150 °C Lead temperature (soldering, 10 s) 300 °C ESD Rating human body model(2) 2 kV (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) The human body model is a 100-pF capacitor discharged through a 1.5-k Ω resistor into each pin. RECOMMENDED OPERATING CONDITIONS All voltages are with respect to PGND if not specified. Currents are positive into, negative out of the specified pin. Consult Packaging Section of the data book for thermal limitations and considerations of packages. MIN MAX UNITS IN voltage range 4.35 18 (1) VIN IN operating voltage range (bq24258) 4.35 10.5 V IN operating voltage range (bq24257) 4.35 6.5 IIN Input current 2 A ICHG Current in charge mode, BAT 2 A IDISCHG Current in discharge mode, BAT 4 A RISET Charge current programming resistor range 75 Ω RILIM Input current limit programming resistor range 105 Ω TJ Operating junction temperature range, TJ 0 125 ºC (1) The inherent switching noise voltage spikes should not exceed the absolute maximum rating on either the BOOT or SW pins. A tight layout minimizes switching noise. THERMAL INFORMATION bq24257 bq24258 THERMAL METRIC(1) UNITS YFF RGE θJA Junction-to-ambient thermal resistance 76.5 32.9 θJCtop Junction-to-case (top) thermal resistance 0.2 32.8 θJB Junction-to-board thermal resistance 44 10.6 °C/W ψJT Junction-to-top characterization parameter 1.6 0.3 ψJB Junction-to-board characterization parameter 43.4 10.7 θJCbot Junction-to-case (bottom) thermal resistance N/A 2.3 (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 4 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: bq24257 bq24258 |
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