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BQ296111DSGT Datasheet(PDF) 10 Page - Texas Instruments

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Part # BQ296111DSGT
Description  Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ296111DSGT Datasheet(HTML) 10 Page - Texas Instruments

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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, bq2962
SLUSBU5C – NOVEMBER 2013 – REVISED OCTOBER 2016
www.ti.com
Product Folder Links: bq2961 bq2962
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
8 Detailed Description
8.1 Overview
The bq2960, bq2961 and bq2962 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 (bq2960, bq2961)
3.0, 3.15, 3.3 (bq2962)
8.2 Functional Block Diagram
Figure 9. bq2960 Block Diagram


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