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BQ296111DSGR Datasheet(PDF) 10 Page - Texas Instruments |
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BQ296111DSGR Datasheet(HTML) 10 Page - Texas Instruments |
10 / 29 page OUT V3 V2 V1 VSS VDD REG PACK+ PACK± RIN C IN RIN C IN RIN C IN C VD R VD V OV 8 7 9 1 2 3 4 6 PWPD Enable Active Delay Charging/ Discharge circuit Delay Timer + - Vref + - Amp Comp UVP_Vref Programmable setting 5 REG_EN 10 bq2961 SLUSBU5A – MAY 2015 – REVISED JANUARY 2016 www.ti.com Product Folder Links: bq2961 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated 9 Detailed Description 9.1 Overview The bq2960xy and bq2961xy are second-level overvoltage (OV) protectors with a regulated output. Each cell is monitored independently by comparing the actual cell voltage to an overvoltage threshold VOV. The overvoltage threshold is preprogrammed at the factory with a range between 3.85 V to 4.65 V. The regulated output is enabled unless any of the cell voltages fall below the VUVREG threshold. This threshold is preprogrammed at the factory with a range between 2 V to 2.8 V. For bq2960xy family, an external control pin, REG_EN, is available to enable or disable the regulated output in addition to the VUVREG detection. Table 1. Programmable Parameters OVERVOLTAGE RANGE (V) OVERVOLTAGE DELAY (s) UNDERVOLTAGE RANGE (V) REGULATOR (V) 3.85 to 4.6 in 50 mV step 3, 4, 5.5, 6.5 2.0 to 2.8 in 50 mV step 1.8, 2.5, 3.3 9.2 Functional Block Diagram Figure 9. bq2960xy Block Diagram |
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