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BQ79656PAPRQ1

Precision Battery Monitors, Balancer, Current Sensor

Manufacturer: Texas Instruments, Inc
Mfr.Part #: BQ79656PAPRQ1
Datasheet: BQ79656PAPRQ1 Datasheet (PDF)
Package/Case: HTQFP-64
Product Type: Power Management ICs
Lifecycle: Active

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BQ79656PAPRQ1 General 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.

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 BQ7965x-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.

Key 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:
- 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
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
5 V LDO output to power external digital isolator
UART/SPI host interface/communication bridge device BQ79600-Q1
Built-in SPI master

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Battery Management	Mfr	Texas Instruments
Series	-	Package	Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status	Active	Function	Battery Monitor
Battery Chemistry	-	Number of Cells	1
Fault Protection	Over Temperature	Interface	SPI, UART
Operating Temperature	-40°C ~ 125°C	Mounting Type	Surface Mount
Package / Case	64-PowerTQFP	Supplier Device Package	64-HTQFP (10x10)
Base Product Number	BQ79656

Shipping

Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

DHL
Fedex
UPS
EMS
Registered Air Mail

Payment

We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

Wire Transfer
Paypal
Credit Card
Western Union
Money Gram

Guarantees

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Packing

AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

ESD
Tape and Reel
Cut Tape
Tube or Tray

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Buying Guide

What is the lifespan of BQ79656PAPRQ1?
The lifespan of BQ79656PAPRQ1 depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.
Where can I find the full specification of BQ79656PAPRQ1?
You can find it with PDF Datasheet for BQ79656PAPRQ1 on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.
How to check the quality of BQ79656PAPRQ1?
Avaq has separate quality services with common quality inspection equipment for testing items, you can also fill out a sample form, our team will get in touch with you within 24 HOURS.
Can I purchase samples for testing?
Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.
Where can I check the delivery after the order is completed?
Once the order is completed, you will receive an order confirmation email containing a tracking number from AVAQ, then you can track the delivery by yourself.
Where to view my order of BQ79656PAPRQ1 or my history order record?
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