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

SMBCLK

SMBDAT

CELL 4

CELL 3

CELL 2

CELL 1

S0342-03

bq76PL102

Figure 4. bq78PL114 Simplified 6-Cell Gateway Controller Circuit With bq76PL102

10

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