Lithium Ion BQ79616PAPRQ1 BQ79616 Battery Multi Function Controller IC 64-HTQFP

Product Specification

BQ79616PAPRQ1 BQ79616 Battery Multi-Function Controller IC Lithium Ion 64-HTQFP

Product Description

BQ79616-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.

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.

Host communication to the BQ7961x-Q1 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 for the BQ79616-Q1

• 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)
• 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

​Simplified System Diagram

FAQ
Q. Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q:Which Certificates do you have?
A:We are ISO 9001:2015 Certified Company and member of ERAI.
Q:Can you support small quantity order or sample?Is the sample free?
A:Yes,we support sample order and small order.Sample cost is different according to your order or project.
Q:How to ship my order? Is it safe?
A:We use express to ship,such as DHL,Fedex,UPS,TNT,EMS.We can also use your suggested forwarder.Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q:What about the lead time?
A:We can ship stock parts within 5 working days.If without stock,we will confirm lead time for you based on your order quantity.