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Direct connection for series battery terminals
Measures 2.10 X 0.70 inches
盲
盲
盲
盲
Low standby and operating currents
General Description
The bq2158 provides a complete solution for the supervi-
sion of three or four series Li-Ion cells. Designed for bat-
tery pack integration, the bq2158 incorporates a bq2058
Pack Supervisor, two FETs, and all other components re-
quired to monitor overvoltage, undervoltage, and over-
cu rr en t c on d i ti o n s. T he b o a r d p r o v id es d ir ec t
connections for the negative and positive terminals of
each cell. See Figure 1. Please refer to the bq2058 data
sheet for specific information on the operation of the
bq2058.
Unitrode configures the bq2158 based on the informa-
tion in Table 1.
Pin Descriptions
B1P
B1N
B2N
B3N
B4N
POS
NEG
Battery 1 positive input/pack positive
Battery 1 negative input
Battery 2 negative input
Battery 3 negative input
Battery 4 negative input
Pack positive
Pack negative
5/99 B
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