L9963E datasheet(156/184 Pages) STMICROELECTRONICS

tên linh kiện	L9963E

Giải thích chi tiết về linh kiện	Automotive Multicell battery monitoring and balancing IC

PDF	184 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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156 / 184 page

6.11.2

Centralized BMS

In the centralized approach, a single PCB holds the whole BMS circuitry. It features both Low Voltage and High

Voltage domains.

•

L9963E in the High Voltage domain are configured with SPIEN = 0, communicating on the vertical interface

through isolated SPI, implementing Capacitive-Based Insulation

•

L9963E in the Low Voltage domain as SPI Slave, translating commands sent by the MCU via SPI to

differential signals propagating through the vertical interface (and vice-versa). It implements Transformer-

Based Insulation

Figure 50. Centralized BMS

MCU

SDI

SDO

SCK

SCS

SDO

SDI

NCS

SCK

L9963T

ISOP

ISOM

LOW VOLTAGE PCB DOMAIN

L9963E

HIGH VOLTAGE PCB DOMAIN

L9963E

SLAVE 2

L9963E

SLAVE 3

L9963E

SLAVE N

ISOLP_SDI

ISOLM_NCS

ISOHP

ISOHM

ISOLP_SDI

ISOLM_NCS

ISOHP

ISOHM

ISOLP_SDI

ISOLM_NCS

ISOHP

ISOHM

ISOLP_SDI

ISOLM_NCS

ISOHP

ISOHM

isotx_en_h = 0

SLAVE 1

BMS

(Slave Unit)

BMS

(Slave Unit)

BMS

(Slave Unit)

BMS

(Slave Unit)

L9963E

Communication architectures

DS13636 - Rev 4

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