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BQ76952PFBR

3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4

Manufacturer:

TI
Mfr.Part #:

BQ76952PFBR
Datasheet:

BQ76952PFBR Datasheet (PDF)
Pbfree Code:

Yes
Part Life Cycle Code:

Active
Reach Compliance Code:

compliant
ECCN Code:

EAR99
EDA/CAD Models:

Request Free CAD Models for BQ76952PFBR

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

BQ76952PFBR General Description

The Texas Instruments BQ76952 device is a highly integrated, high-accuracy battery monitor and protector for 3-series to 16-series Li-ion, Li-polymer, and LiFePO₄ battery packs. The device includes a high-accuracy monitoring system, a highly configurable protection subsystem, and support for autonomous or host controlled cell balancing. Integration includes high-side charge-pump NFET drivers, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I²C, SPI, and HDQ one-wire standards. The BQ76952 device is available in a 48-pin TQFP package.

Key Features

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)

Specifications

Source Content uid	BQ76952PFBR	Pbfree Code	Yes
Part Life Cycle Code	Active	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code	8542.39.00.01
Date Of Intro	2020-08-13	Adjustable Threshold	YES
Analog IC - Other Type	POWER SUPPLY MANAGEMENT CIRCUIT	Input Voltage-Max	80 V
JESD-30 Code	R-PQFP-G48	JESD-609 Code	e4
Moisture Sensitivity Level	2	Number of Channels	16
Number of Functions	1	Number of Terminals	48
Operating Temperature-Max	85 °C	Operating Temperature-Min	-40 °C
Peak Reflow Temperature (Cel)	260	Supply Voltage-Max (Vsup)	80 V
Supply Voltage-Min (Vsup)	4.7 V	Supply Voltage-Nom (Vsup)	59.2 V
Surface Mount	YES	Temperature Grade	INDUSTRIAL
Terminal Finish	NICKEL PALLADIUM GOLD	Terminal Form	GULL WING
Terminal Position	QUAD	Time@Peak Reflow Temperature-Max (s)	30