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L9963E Fiches technique(PDF) 158 Page - STMicroelectronics

No de pièce L9963E
Description  Automotive Multicell battery monitoring and balancing IC
PDF  184 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9963E Fiches technique(HTML) 158 Page - STMicroelectronics

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6.11.4
Single module BMS
In the single module approach, the MCU and L9963E monitoring the battery pack are placed on the same PCB.
Two scenarios are possible:
Isolated BMS: in case BMS ground is different from MCU ground, an isolation stage is needed. The L9963T
transceiver can be used along with Capacitive-Based Insulation. L9963E is configured with SPIEN = 0
Non-Isolated BMS: in case BMS and MCU share the same ground, no isolation stage is needed. L9963E is
configured with SPIEN = 1 and directly connected to MCU SPI Master.
Figure 52. Single pack BMS (with isolation stage)
MCU
SDI
SDO
SCK
SCS
ISOLP_SDI
ISOLM_NCS
L9963E
SINGLE PACK CONTROLLER PCB
SDO
SDI
NCS
SCK
L9963T
ISOP
ISOM
MCU
SDI
SDO
SCK
SCS
L9963E
SINGLE PACK CONTROLLER PCB
SDO
SDI
NCS
SCK
L9963E
Communication architectures
DS13636 - Rev 12
page 158/184



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