Datasheet

PowerLAN Six-Cell Battery Monitor
bq78PL114
PowerLAN
Gateway Battery
Management
Controller
R
PRE
+
PACK+
–
R
SENSE
PACK–
XT1, XT2
XT3, XT4
Temperature
Sensor (typ.)
Temperature
Sensor (typ.)
SPROT
LED1–LED5
Typical six-cell configuration shown.
Additional cells added via PowerLAN connection.
Some components omitted for clarity.
V2
V3
V4
V1
VLDO2
C
RFI
C
RFI
VLDO1
RSTN
SDO2
SDI3
One of 2 external
sensors shown
One of 2 external
sensors shown
P-LAN
5
CELL 6
CELL 5
V2
V1
SDI1
SDO0
Level-Shift Circuits
CHG
DSG
PRE
ESD
Protection
SMBCLK
SMBDAT
SMBus
Thermal Pad
VSS
CSBAT CCBAT CCP
ACK
CSP
ACK
Cell Balancing
Circuits
Cell Balancing Circuits
bq76PL102
CELL 4
CELL 3
CELL 2
CELL 1
S0342-03
bq76PL102
SLUS887A – DECEMBER 2008 – REVISED OCTOBER 2009 .......................................................................................................................................... www.ti.com
Figure 4. bq78PL114 Simplified 6-Cell Gateway Controller Circuit With bq76PL102
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