Texas Instruments BQ25856QWRRVRQ1
Manufacturer No:
BQ25856QWRRVRQ1
Manufacturer:
Texas Instruments
Package:
Description:
Automotive I2C controlled 70-V bidirectional buck-boost charge controller
Quantity:
In Stock :8050
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Expected Shipping：Thu, May 28 - Fri, May 29, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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BQ25856QWRRVRQ1 Information
Texas Instruments BQ25856QWRRVRQ1 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments BQ25856QWRRVRQ1.
- Type
- Parameter
- Vin (min) (V)
- 4.4
- Vin (max) (V)
- 70
- Absolute max Vin (max) (V)
- 85
- Charge current (max) (A)
- 20
- Control topology
- Switch-Mode Buck-boost
- Number of series cells
- 16
- Cell chemistry
- Li-Ion/Li-Polymer, LiFePO4, Lithium Phosphate/LiFePO4, NiMH, SuperCap
- Rating
- Automotive
- Features
- AEC-Q100 Automotive Qual, Adjustable switching frequency, BAT temp thermistor monitoring (JEITA profile), Bidirectional, IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Integrated LDO, SYNC Pin, USB C/PD compatible, VINDPM (Input voltage threshold to maximize adaptor power)
- Battery charge voltage (min) (V)
- 0
- Type
- Parameter
- Battery charge voltage (max) (V)
- 70
- Control interface
- I2C
- Operating temperature range (°C)
- -40 to 150
- Package
- VQFN (RRV)
- Pins
- 36
- Size
- 30 mm² 6 x 5
- REACH Status
- Yes
- RoHS Status
- RoHS Compliant
Download datasheets and manufacturer documentation for Texas Instruments BQ25856QWRRVRQ1.
Data sheet:
Application note:
Application brief:
The BQ25856-Q1 is an automotive grade, wide input voltage, switched-mode buck-boost Li-Ion, Li-polymer, or LiFePO4 battery charge controller with bidirectional power flow support. The device offers high-efficiency battery charging over a wide voltage range with accurate charge current and charge voltage regulation, in addition to automatic charge preconditioning, termination, and charge status indication. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use. In reverse mode, the device draws power from the battery and regulates the input terminal voltage with an added constant current loop for protection.
Besides the I2C host-controlled charging mode, the device also supports standalone charging mode via resistor programmable limits. Input current, charge current, and charge voltage regulation targets can be set via the ILIM_HIZ, ICHG, and FB pins, respectively.
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: −40ºC ≤ TA≤ 150ºC
- Wide input voltage operating range: 4.4V to 70V
- Wide battery voltage operating range: up-to 70V with multi-chemistry support:
- 1- to 14-cell Li-ion charge profile
- 1- to 16-cell LiFePO4 charge profile
- Up-to 70V supercapacitor charging
- Synchronous buck-boost charge controller with NFET drivers
- Adjustable fSW from 200kHz to 600kHz
- Switching frequency dithering for EMI noise reduction (DRSS)
- Optional synchronization to external clock
- Integrated loop compensation with soft start
- Optional gate driver supply input for optimized efficiency
- Bidirectional converter operation (Reverse Mode) supporting USB-PD Extended Power Range (EPR)
- Adjustable input voltage (VAC) regulation from 3.3V to 65V with 20mV/step
- Adjustable input current regulation (RAC_SNS) from 0.4A to 20A with 50mA/step using 5mΩ resistor
- High accuracy
- ±0.5% charge voltage regulation
- ±3% charge/input current regulation
- ±2% input voltage regulation
- I2C controlled for optimal system performance with resistor-programmable option
- Hardware adjustable input and output current limits
- Integrated 16-bit ADC for voltage, current, and temperature monitoring
- High safety integration
- Adjustable input overvoltage and undervoltage protection
- Battery overvoltage and overcurrent protection
- Charging safety timer
- Thermal shutdown
- Status outputs
- Input power present status (PG)
- Charger operation status (STAT1, STAT2)
- Package
- 36-pin 5mm × 6mm QFN with wettable flanks
- Functional Safety-Capable
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12.28 M
Listed Part Number
3,000+
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In-stock SKU
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