Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The BQ25703ARSNR is a synchronous NVDC battery buck/boost charge controller that provides a high efficiency solution with a low component count for space-constrained multi-compound battery charging applications.

The NVDC-1 configuration stabilises the system voltage within the battery voltage range, but not below the minimum system voltage. The system continues to operate even when the battery is fully discharged or removed. When the load power exceeds the input source rating, the battery enters recharge mode and prevents the system from crashing.

The BQ25703ARSNR charges the battery from a variety of input sources such as USB adapters, high voltage USB PD sources, and conventional adapters.

During a charge, the charger sets the converter to buck, boost, or buck/boost configuration based on the input source and battery condition. The charger automatically switches between buck, boost, and buck/boost configurations without host control.

In the absence of an input source, the BQ25703ARSNR supports the On-the-Go (OTG) function with one to four batteries to generate 4.48V to 20.8V on VBUS. In OTG mode, the charger regulates the output voltage and output current.

The BQ25703ARSNR monitors adapter current, battery current, and system power. The flexibly programmable PROCHOT output goes directly to the CPU and can be derated as needed.

Features of the BQ25703ARSNR

Charges 1 to 4 batteries from a variety of input sources

3.5V to 24V input operating voltage

Supports USB 2.0, USB 3.0, USB 3.1 (Type-C) and USB_PD input current settings

Seamless transition between buck and boost operation

Provides input current and voltage regulation (IDPM and VDPM) to prevent power supply overloads

Power/current monitor for CPU throttling

Integrated PROCHOT setting, IMVP8 compliant

Input and battery current monitors

System power monitor, IMVP8 compliant

Narrow VDC (NVDC) power path management

Instant start without battery or with deeply discharged battery

Battery recharges the system when the adapter is full

Power USB port from battery (USB OTG)

Output 4.48V to 20.8V USB PD compatible

Output current limit up to 6.35A

Programmable switching frequency of 800kHz or 1.2MHz for 1µH to 3.3µH inductors

Flexible system configuration via host control interface

I2C (bq25703A) port for optimised system performance and status reporting

Hardware pin to set input current limits without EC control

Integrated ADC monitors voltage, current, and power

Highly accurate regulation and monitoring

±0.5% charge voltage regulation

±2% input/charge current regulation

±2% input/charge current monitoring

±5% power monitor

Safety

Thermal shutdown

Input, System, Battery Overvoltage Protection

MOSFET Inductive Overcurrent Protection

Low battery quiescent current

Input current optimiser (ICO) for maximum input power

Charge any battery chemistry: Li+, LiFePO4, NiCd, NiMH, Lead Acid

Package: 32-pin 4 x 4 WQFN

Applications for the BQ25703ARSNR

- Drones, Bluetooth speakers, IP cameras, detachable computers, tablets and mobile power supplies

- Industrial and medical equipment

- Portable devices with rechargeable batteries

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.