company blog about Origial TI Battery Charger IC, Supply BQ25703ARSNR NVDC Buck Boost Battery Charge Controller

Origial TI Battery Charger IC, Supply BQ25703ARSNR NVDC Buck Boost Battery Charge Controller

Shenzhen Mingjiada Electronics Co., Ltd.——Long Term Supply TI (BQ25703ARSNR) I2C Multi-Chemistry Battery Buck-Boost Charge Controller, Below are product details for BQ25703ARSNR:

BQ25703ARSNR——Basic Information:
Part Number: BQ25703ARSNR
Package: WQFN-32
Type: NVDC Buck Boost Battery Charge Controller
Product Details: BQ25703ARSNR—— I2C Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor.

Product Attributes Of BQ25703ARSNR
Function: Battery Monitor
Battery Chemistry: Multi-Chemistry
Number of Cells: 1 ~ 4
Fault Protection: Over Current, Over Temperature, Over Voltage
Interface: I2C
Operating Temperature: -40°C ~ 85°C (TA)
Mounting TypeSurface Mount
Package / Cas: e: 32-WFQFN Exposed Pad
Supplier Device Package32-QFN (4x4)

BQ25703ARSNR is a synchronous NVDC battery buck-boost charge controller, offering low component count, high efficiency solution for space-constraint, multi-chemistry battery charging applications.

BQ25703ARSNR——The NVDC-1 configuration allows the system to be regulated at battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.

BQ25703ARSNR charges battery from a wide range of input sources including USB adapter, high voltage USB PD sources and traditional adapters.

During power up, the charger sets converter to buck, boost or buck-boost configuration based on input source and battery conditions. The BQ25703ARSNR charger automatically transits among buck, boost and buck-boost configuration without host control.

BQ25703ARSNR——In the absence of an input source, the bq25703A supports On-the-Go (OTG) function from 1- to 4-cell battery to generate 4.48 V to 20.8 V on VBUS. During OTG mode, the charger regulates output voltage and output current.

BQ25703ARSNR monitors adapter current, battery current and system power. The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.

Features Of BQ25703ARSNR

Charge 1- to 4-Cell Battery From Wide Range of Input Sources
- 3.5-V to 24-V Input Operating Voltage
- Supports USB2.0, USB 3.0, USB 3.1 (Type C), and USB_PD Input Current Settings
- Seamless Transition Between Buck and Boost Operation
- Input Current and Voltage Regulation (IDPM and VDPM) Against Source Overload
Power/Current Monitor for CPU Throttling
- Comprehensive PROCHOT Profile, IMVP8 Compliant
- Input and Battery Current Monitor
- Power Monitor, IMVP8 Compliant
Narrow-VDC (NVDC) Power Path Management
- Instant-On With No Battery or Deeply Discharged Battery
- Battery Supplements System When Adapter is Fully-Loaded
Power Up USB Port From Battery (USB OTG)
- Output 4.48-V to 20.8-V Compatible With USB PD
- Output Current Limit up to 6.35 A
800-kHz or 1.2-MHz Programmable Switching Frequency for 1-µH to 3.3 µH Inductor
Host Control Interface for Flexible System Configuration
- I2C (bq25703A) Port for Optimal System Performance and Status Reporting

- Hardware Pin to Set Input Current Limit Without EC Control
Integrated ADC to Monitor Voltage, Current and Power
High Accuracy Regulation and Monitor
- ±0.5% Charge Voltage Regulation
- ±2% Input/Charge Current Regulation
- ±2% Input/Charge Current Monitor
- ±5% Power Monitor
Safety
- Thermal Shutdown
- Input, System, Battery Overvoltage Protection
- MOSFET Inductor Overcurrent Protection
Low Battery Quiescent Current
Input Current Optimizer (ICO) to Extract Max Input Power
Charge Any Battery Chemistry: Li+, LiFePO4, NiCd, NiMH, Lead Acid
Package: 32-Pin 4 × 4 WQFN

Applications Of BQ25703ARSNR
Drones, Bluetooth Speakers, IP Cameras, Detachable, Tablet PCs and Power Bank
Industrial and Medical Equipment
Portable Equipment With Rechargeable Batteries

[Mingjiada Electronics] Long Term Supply TI (BQ25703ARSNR) I2C 1-4 cell NVDC Buck-Boost battery charge controller with system power monitor and processor, For more product information about BQ25703ARSNR or to purchase samples, please visit the official website of Mingjiada Electronics (https://www.integrated-ic.com/).