BQ294602 Datasheet, PDF (8/17 Pages) Texas Instruments – Single-Cell Protector for Li-Ion Batteries

bq294602, bq294604
SLUSAS0B – DECEMBER 2011 – REVISED MARCH 2012
APPLICATION INFORMATION
Pack +
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RIN
VCELL
CIN
bq2946xy
NC
OUT
V1
VDD
VSS
VSS
RVD
CVD
Pack –
Figure 6. Application Configuration
NOTE
Connect VSS (Pins 3 and 4) externally to the CELL– terminal.
Changes to the ranges stated in Table 1 will impact the accuracy of the cell measurements. Figure 6 shows each
external component.
PARAMETER
Voltage monitor filter
resistance
Voltage monitor filter
capacitance
Supply voltage filter
resistance
Supply voltage filter
capacitance
External
Component
RIN
CIN
RVD
CVD
Table 1. Parameters
MIN
NOM
900
1000
0.01
0.1
100
0.1
MAX
1100
1K
UNIT
Ω
µF
Ω
µF
APPLICATION SCHEMATIC
Pack +
VCELL
1K
0.1 µF
bq2946xy
NC
OUT
V1
VDD
VSS
VSS
100
0.1 µF
Pack –
Figure 7. 1-Cell Configuration with Fixed Delay
NOTE
Connect VSS (Pins 3 and 4) externally to the CELL– terminal.
8
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