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BQ296213DSGT Datasheet(PDF) 1 Page - Texas Instruments |
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BQ296213DSGT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page Pack + 100 Q VCELL2 VCELL1 OUT VDD VSS Pack ± V2 V1 REG_EN 1 kQ V3 REG VCELL3 PWPD bq2960xy MCU CTL 0.1 µF 0.1 µF 0.1 µF 0.1 µF Protector FETs 0.47 µF 10 M (Optional) External Circuit e.g., RTC 1 kQ 1 kQ 5 (*) * can be removed if Vss will be connected first during cell connection bq2960xy REG out is controlled by MCU VCELL2 VCELL1 OUT VDD VSS 1 kQ 1 kQ Pack ± V3 V2 V1 1 kQ V4 REG VCELL3 PWPD bq2961xy 0.1 µF 0.1 µF 0.1 µF 0.1 µF Pack + Protector FETs 0.47 µF External Circuit e.g., RTC 0.1 µF VCELL4 1 kQ 5 (*) * can be removed if Vss will be connected first during cell connection 100 Q Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. bq2961, bq2962 SLUSBU5C – NOVEMBER 2013 – REVISED OCTOBER 2016 bq296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply 1 1 Features 1 • 2-Series, 3-Series, and 4-Series Cell Overvoltage Protection (OVP) • Fixed Delay Timer to Trigger FET Drive Output (3-s, 4-s, 5.5-s or 6.5-s Options) • Factory Programmed OVP Threshold (Threshold Range 3.85 V to 4.6 V) • Output Options: Active High • High-Accuracy Overvoltage Protection: ±10 mV • Regulated Supply Output with self-disable and/or external enable/disable control – Options: 3.3-V, 2.5-V, and 1.8-V (bq2960/61) – Options: 3.3-V, 3.15-V, 3.0-V (bq2962) • Low Power Consumption ICC ≈ 4 µA (VCELL(ALL) < VPROTECT) • Extra Low Power Consumption with REG output disabled, ICC ~ 1.2 µA • Low Leakage Current Per Cell Input < 100 nA • Small Package Footprint – 8-Pin WSON (2 mm × 2 mm) 2 Applications • Notebook PC • Ultrabooks • Medical • UPS Battery Backup 3 Description The bq296xxx family is a high accuracy, low power overvoltage protector with a 1-mA regulated output supply for Li-Ion battery pack applications. Each cell in a 2-series to 4-series cell stack is individually monitored for an overvoltage condition. An internally fixed-delay timer is initiated upon detection of an overvoltage condition on any cell; upon expiration of the delay timer, an output pin is triggered into an active state to indicate that an overvoltage condition has occurred. The regulated output supply delivers up to 1-mA (max) output current to drive always-on circuits, such as a real-time clock (RTC) oscillator. The bq296xxx family has a self-disable function to turn off the regulated output if any cell voltage falls below a certain threshold, thereby preventing drain on the battery, and provides an external control to enable or disable the regulated output. Device Information(1)(2) PART NUMBER PACKAGE BODY SIZE (NOM) bq2960 WSON (8) 2.00 mm × 2.00 mm bq2961 bq2962 (1) For all available packages, see the orderable addendum at the end of the datasheet. (2) The bq2960 is a 2-S to 3-S device. The bq2961 and bq2962 are 2-S to 4-S devices. Simplified Schematic |
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