Shenzhen Meiyuxin Technology Co., Ltd. has the advantage of selling new original BQ79616PAPRQ1 16-S automotive precision battery monitor!

Description：

BQ79616PAPRQ1 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.

The inclusion of the isolated, bidirectional, daisy chain ports supports both capacitor- and transformer-based isolation, allowing the use of the most effective components for centralized or distribution architectures commonly found in the xEV powertrain system. This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.

BQ79616PAPRQ1 family of devices can be connected via the device’s dedicated UART interface or through a communication bridge device, BQ79600. Additionally, an isolated, differential daisy-chain communication interface allows the host to communicate with the entire battery stack over a single interface. in the event of a communication line break, the daisy-chain communication interface is configurable to a ring architecture that allows the host to talk to devices at either end of the stack.

Features：

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:

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

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

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

Applications：

Battery Management System (BMS) in hybrid and

electric powertrain systems

Energy storage battery packs with Battery

Management Systems