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BQ294684 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ294684 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 17 page DRV Package (Top View) 1 2 3 4 5 6 OUT VDD NC V1 VSS PWR PAD VSS bq294602, bq294604 www.ti.com SLUSAS0B – DECEMBER 2011 – REVISED MARCH 2012 Single-Cell Protector for Li-Ion Batteries Check for Samples: bq294602, bq294604 1 FEATURES • Low Power Consumption ICC ≈ 1 µA (VCELL(ALL) < VPROTECT) • Single-Cell Monitor for Secondary Protection • Low leakage current per cell input < 100 nA • Fixed Programmable Delay Timer • Small package footprint • Fixed OVP Threshold – 6-pin SON – bq294602 = 4.35 V with 4-s Delay Timer – bq294604 = 4.35 V with 6.5-s Delay Timer APPLICATIONS – bq294622 = 4.45 V with 4-s Delay Timer • 2nd-Level Protection in Li-Ion Battery Packs in: – bq294624 = 4.45 V with 6.5-s Delay Timer – Tablets – bq294682 = 4.225 V with 4-s Delay Timer – Slates – bq294684 = 4.225 V with 6.5-s Delay Timer – Portable Equipment and Instrumentation • High-Accuracy Overvoltage Protection: ± 10 mV DESCRIPTION The bq2946xy family of products is a secondary level voltage monitor and protector for Li-Ion battery pack systems. The cell is monitored for over voltage condition and triggers an internal counter once the OVP threshold is exceeded and after a fixed set delay the out is transitioned to a high level. The output is reset (goes low) if the cell voltage drops below the set threshold minus the hysteresis. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. UNLESS OTHERWISE NOTED this document contains Copyright © 2011–2012, Texas Instruments Incorporated PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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