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BQ79656PAPRQ1

更新时间： 2024-09-26 02:52:31
品牌 Logo 应用领域
德州仪器 - TI 电池
页数 文件大小 规格书
11页 1575K
描述
BQ79656-Q1, BQ79654-Q1, BQ79652-Q1 Functional Safety-Compliant Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector with Integrated Current Sense

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BQ79656PAPRQ1 数据手册

 浏览型号BQ79656PAPRQ1的Datasheet PDF文件第2页浏览型号BQ79656PAPRQ1的Datasheet PDF文件第3页浏览型号BQ79656PAPRQ1的Datasheet PDF文件第4页浏览型号BQ79656PAPRQ1的Datasheet PDF文件第5页浏览型号BQ79656PAPRQ1的Datasheet PDF文件第6页浏览型号BQ79656PAPRQ1的Datasheet PDF文件第7页 
BQ79656-Q1  
SLUSEI2 – MAY 2021  
BQ79656-Q1, BQ79654-Q1, BQ79652-Q1 Functional Safety-Compliant Automotive  
16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector with  
Integrated Current Sense  
1 Features  
2 Applications  
•
•
Qualified for automotive applications  
AEC-Q100 Qualified with the following results:  
– Device temperature grade 1: –40°C to +125°C  
ambient operating temperature range  
– Device HBM ESD classification level 2  
– Device CDM ESD classification level C4B  
Functional Safety-Compliant  
•
•
•
Battery Management System (BMS) in hybrid and  
electric powertrain systems  
Energy storage battery packs with Battery  
Management Systems  
E-bikes, E-Scooters  
3 Description  
•
The BQ7965x-Q1 family of devices provides high-  
accuracy cell voltage measurements for a minimum  
of 6S to a maximum of 12S (BQ79652-Q1),  
14S (BQ79654-Q1), or 16S (BQ79656-Q1) battery  
modules in less than 200 µs while these devices also  
support shunt-resistor current sense measurement.  
The integrated front-end filters enable the system to  
implement with simple, low voltage raring, differential  
RC filters on the cell input channels. The integrated,  
post-ADC, low-pass filters enable filtered, DC-like,  
voltage measurements. This family of devices also  
supports integrated current sensing capabilities with  
option to synchronize with cell voltage measurements  
for better state of charge (SOC) calculation. The  
device supports autonomous internal cell balancing  
with temperature monitoring to auto-pause and  
resume balancing to avoid an overtemperature  
condition.  
– Developed for functional safety applications  
– Documentation to aid ISO 26262 system design  
– Systematic capability up to ASIL D  
– Hardware capability up to ASIL D  
+/- 1.5mV ADC accuracy  
•
•
Pin-package and software compatible device  
family:  
– Stackable monitor 16S (BQ79616-Q1,  
BQ79656-Q1), 14S (BQ79614-Q1, BQ79654-  
Q1), and 12S (BQ79612-Q1, BQ79652-Q1)  
– Standalone monitor 48 V system (BQ75614-  
Q1)  
Supports current-sense measurement  
Built-in redundancy path for voltage and  
temperature and current diagnostics  
Highly accurate cell voltage measurements within  
128 µs for all cell channels  
•
•
•
•
Integrated post-ADC configurable digital low-pass  
filters  
Device Information  
PART NUMBER (1)  
BQ79652-Q1(2)  
BQ79654-Q1(2)  
BQ79656-Q1  
PACKAGE  
BODY SIZE (NOM)  
•
•
Supports bus bar connection and measurement  
Built-in host-controlled hardware reset to emulate  
POR-like device reset  
Supports internal cell balancing  
– Balancing current at 240 mA  
HTQFP (64-pin)  
10.00 mm × 10.00 mm  
•
– Built-in balancing thermal management with  
automatic pause and resume control  
Isolated differential daisy chain communication  
with optional ring architecture  
Embedded fault signal and heartbeat through  
communication line  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
(2) Product Preview  
•
•
FUSE  
Relay  
fuse/relay sense  
GPIOx  
•
•
5 V LDO output to power external digital isolator  
UART/SPI host interface/communication bridge  
device BQ79600-Q1  
12 V  
BQ7961x  
OUT  
VCC  
IN  
PMIC  
Daisy chain  
communication  
ISO  
GPIOx  
•
Built-in SPI master  
BQ7965x CVDD  
UART  
VCC1 VCC2  
MCU  
Current sense  
Rs  
Simplified System Diagram  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION  
DATA.  
 
 
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