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BQ771802DPJT Datasheet(PDF) 1 Page - Texas Instruments |
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BQ771802DPJT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 16 page 1 2 3 4 8 7 6 5 VDD V5 V4 V3 OUT VSS V1 V2 bq771800, bq771801 bq771802, bq771803 www.ti.com SLUSAX1 – DECEMBER 2012 Overvoltage Protection for 2-Series to 5-Series Cell Li-Ion Batteries with Internal Delay Timer Check for Samples: bq771800, bq771801, bq771802, bq771803 1 FEATURES • Small Package Footprint – 8-pin QFN (3 mm × 4 mm) • 2-, 3-, 4-, and 5-Series Cell Overvoltage Protection APPLICATIONS • Internal Delay Timer • Protection in Li-Ion Battery Packs in: • Fixed OVP Threshold – Power Tools • High-Accuracy Overvoltage Protection: ± 10 mV – UPS Battery Backup • Low Power Consumption ICC ≈ 1 µA – Light Electric Vehicles (eBike, eScooter, (VCELL(ALL) < VPROTECT) Pedal Assist Bicycles) • Low Leakage Current Per Cell Input < 100 nA DESCRIPTION The bq7718xy family of products is an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. In the bq7718xy device, an internal delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, the output is triggered into its active state (either high or low depending on the configuration). For quicker production-line testing, the bq7718xy device provides a Customer Test Mode with greatly reduced delay time. Figure 1. bq771800 Pinout 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 © 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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