Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The BQ25792RQMR is a fully integrated switch-mode buck/boost charger designed for 1-4 cell lithium-ion and lithium-polymer batteries. The integration includes four switch MOSFETs (Q1, Q2, Q3, Q4), input and charge current detection circuits, a battery FET (QBAT), and loop compensation for the buck/boost converter. It uses NVDC power path management to regulate the system voltage to a level slightly above the battery voltage but does not drop below the configurable minimum system voltage. When system power exceeds the input source rating, the battery boost mode supports the system without overloading the input source. The BQ25792RQMR supports the full input and output (OTG) voltage range for USB Type-C™ and USB Power Delivery (USB-PD) applications.

BQ25792RQMR Features

• High power density, highly integrated buck/boost charger for 1–4 cells, supporting any USB PD 3.0 profile

– Integrated four switch MOSFETs and BATFET  

– Integrated input and charging current detection  

• Efficient  

– 750kHz or 1.5MHz switching frequency  

– 5A charging current with 10mA resolution  

• Efficiency up to 96.5%: charging a 16V battery from a 20V input at 3A current  

• Supports wide input sources

– Wide input operating voltage range from 3.6V to 24V, with an absolute maximum voltage rating of 30V

– Maximum power tracking, input voltage dynamic power management (VINDPM) up to 22V, input current dynamic power management (IINDPM) up to 3.3A

– Detects USB BC1.2, SDP, CDP, DCP, HVDCP, and non-standard adapters

• Dual input power multiplexer controller for source selection (optional)

• Narrow Voltage DC (NVDC) power path management

• Powering USB ports from the battery (USB OTG)

– OTG output voltage from 2.8V to 22V with 10mV resolution, supporting USB-PD PPS

– OTG output current regulation up to 3.32A with 40mA resolution

• Flexible autonomous and I2C modes for excellent system performance

• Integrated 16-bit ADC for voltage, current, and temperature monitoring

• Low battery static current

– 21μA when operating on battery power only

– 600nA in charger shutdown mode

• High precision

– 2S-4S battery charging voltage regulation range of +0.65% to -0.85%

– Charging current regulation range of ±5%

– Input current regulation range of ±5%

• Safety

– Thermal regulation and thermal shutdown

– Input/battery OVP and OCP

– Converter MOSFET OCP

– Charging safety timer

• Packaging

– 29-pin, 4mm × 4mm QFN

BQ25792RQMR Applications

• Video doorbells, smart home control

• Data concentrators, lawn mowing robots, vacuum cleaning robots

• Asset tracking, mobile POS

• Multi-parameter patient monitors, electrocardiogram (ECG), ultrasound smart probes

• 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.