BQ79616-Q1, BQ79616H-Q1, BQ79614-Q1, BQ79612-Q1
SLUSE81E – AUGUST 2020 – REVISED NOVEMBER 2023
BQ79616-Q1, BQ79616H-Q1, BQ79614-Q1, BQ79612-Q1 Functional Safety-Compliant
Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector
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
– 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,
BQ79616H-Q1, BQ79656-Q1), 14S (BQ79614-
Q1, BQ79654-Q1), and 12S (BQ79612-Q1,
BQ79652-Q1)
– Standalone monitor 48 V system (BQ75614-
Q1)
Built-in redundancy path for voltage and
temperature diagnostics
Highly accurate cell voltage measurements within
128 µs for all cell channels
Integrated post-ADC configurable digital low-pass
filters
•
Battery Management System (BMS) in hybrid and
electric powertrain systems
Energy storage battery packs with Battery
Management Systems
•
3 Description
BQ79612-Q1, BQ79614-Q1, BQ79616-Q1 and
BQ79616H-Q1 provide high-accuracy cell voltage
measurements in less than 200 μs for 12S, 14S
and 16S battery modules in high-voltage battery
management systems in HEV/EV. The family of
monitors offers different channel options in the same
package type, providing pin-to-pin compatibility and
supporting high reuse of the established software
and hardware across any platform. The integrated
front-end filters enable the system to implement
with simple, low voltage rating, differential RC
filters on the cell input channels. The integrated,
post-ADC, low-pass filters enable filtered, DC-like,
voltage measurements for better state of charge
(SOC) calculation. This device supports autonomous
internal cell balancing with temperature monitoring
to auto-pause and resume balancing to avoid an
overtemperature condition.
•
•
•
•
•
•
Device Information
PART NUMBER(1)
BQ79612-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
BQ79614-Q1
HTQFP (64-pin)
10.00 mm × 10.00 mm
BQ79616-Q1
•
BQ79616H-Q1
– 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
UART/SPI host interface/communication bridge
device BQ79600-Q1
Built-in SPI master
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
•
•
•
•
Battery
Modules
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
12
V
Balance and Filter Components
Balance and Filter Components
DC-DC
To CAN
Bus
MCU
BQ79600
bq79600
BQ7961x
bq79600
BQ7961x
bq79600
NFAULT
NFAULT
UART or
SPI
UART or
SPI
COML
COMH
COML
COMH
COML
COMH
Capactive
Level-shifted Differential Interface
Isolation
Components
Optional Ring Connection
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. PRODUCTION DATA.
5秒后页面跳转
NTC热敏电阻与PTC热敏电阻的应用原理及应用范围
GTO与普通晶闸管相比为什么可以自关断？为什么普通晶闸管不能呢？从GTO原理、应用范围带你了解原因及推荐型号
LF353数据手册解读：特性、应用、封装、引脚说明、电气参数及替换型号推荐
A4950资料手册解读：特性、应用、封装、引脚功能、电气参数及代换型号
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
