Name: BQ76952PFBR
Brand: Texas Instruments
SKU: BQ76952PFBR

Номер детали

Тип

Параметр

Manufacturer:

Texas Instruments

Product Category:

Battery Management

Product:

Battery Protection

Battery Type:

Lithium Iron Phosphate (LiFePO4), Lithium-ion, Lithium Polymer

Operating Supply Voltage:

4.7 V to 80 V

Package / Case:

TQFP-48

Mounting Style:

SMD/SMT

Series:

BQ76952

Packaging:

MouseReel

Brand:

Texas Instruments

Country of Assembly:

Country of Diffusion:

Country of Origin:

Features:

High Accuracy Monitoring System, Highly Configurable Protection Subsystem

Maximum Operating Temperature:

+ 85 C

Minimum Operating Temperature:

- 40 C

Moisture Sensitive:

Yes

Product Type:

Battery Management

Описание микросхемы BQ76952

Устройство Texas Instruments BQ76952 — это высокоинтегрированный высокоточный монитор и защитник аккумуляторов для литий-ионных, литий-полимерных и литий-железо-фосфатных аккумуляторов с последовательным соединением от 3 до 16 элементов.₄ аккумуляторные блоки. Устройство включает в себя высокоточную систему мониторинга, высоко настраиваемую подсистему защиты и поддержку автономного или управляемого хостом балансирования элементов. Интеграция включает драйверы высокосторонних полевых транзисторов с насосной зарядкой, два программируемых стабилизатора напряжения (LDO) для внешнего использования в системе и периферийное устройство связи с хостом, поддерживающее интерфейс I²C со скоростью 400 кГц.²Стандарты C, SPI и однопроводной интерфейс HDQ. Устройство BQ76952 выпускается в корпусе TQFP с 48 выводами.

Features for the BQ76952

Battery monitoring capability for 3-series to 16-series cells
Integrated charge pump for high-side NFET protection with optional autonomous recovery
Extensive protection suite including voltage, temperature, current, and internal diagnostics
Two independent ADCs
- Support for simultaneous current and voltage sampling
- High-accuracy coulomb counter with input offset error < 1 µV (typical)
- High accuracy cell voltage measurement < 10 mV (typical)
Wide-range current applications (±200-mV measurement range across sense resistor)
Integrated secondary chemical fuse drive protection
Autonomous or host-controlled cell balancing
Multiple power modes (typical battery pack operating range conditions)
- NORMAL mode: 286 µA
- Multiple SLEEP mode options: 24 µA to 41 µA
- Multiple DEEPSLEEP mode options: 9 µA to 10 µA
- SHUTDOWN mode: 1 µA
High-voltage tolerance of 85 V on cell connect and select additional pins
Tolerant of random cell attach sequence on production line
Support for temperature sensing using internal sensor and up to nine external thermistors
Integrated one-time-programmable (OTP) memory programmable by customers on production line
Communication options include 400-kHz I²C, SPI, and HDQ one-wire interface
Dual-programmable LDOs for external system usage
48-pin TQFP package (PFB)

Key Application Scenarios

Light Electric Vehicles (LEVs)
- E-Bikes and E-Scooters.
- Electric mopeds and three-wheelers.
- Golf carts and low-speed electric vehicles.
Power Tools & Garden Tools
- Cordless lawn mowers and string trimmers.
- High-power cordless drills and saws.
- Industrial robotic grippers and machinery.
Energy Storage Systems (ESS)
- Residential Solar Energy Storage Systems (Home ESS).
- Uninterruptible Power Supplies (UPS).
- Telecom base station backup batteries.
Battery Pack Modules
- Commercial and industrial battery packs (12V to 60V+ systems).
- battery replacements for traditional lead-acid batteries.
Robotics & Industrial Automation
- Automated Guided Vehicles (AGVs) and Autonomous Mobile Robots (AMRs).
- Robotic vacuum cleaners and service robots.
- Drones and unmanned aerial vehicles (UAVs).

Why BQ76952 is Chosen for These Scenarios

High Voltage Range: Directly supports up to 16S packs without external stacking.
Integrated High-Side Drivers: Simplifies the circuit design for turning power on/off safely.
Precise Fuel Gauging: High-accuracy ADC enables precise state-of-charge (SoC) calculations for heavy-duty industrial tasks.