BQ25703ARSNR
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Texas Instruments BQ25703ARSNR

Manufacturer No:
BQ25703ARSNR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC BAT MON MULT-CHEM 1-4C 32WQFN
Delivery:
Payment:
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Product Introduction

Overview

The Texas Instruments BQ25703ARSNR is a highly integrated I2C multi-chemistry battery buck-boost charge controller. This device is designed to provide a low component count and high efficiency solution for space-constrained, multi-chemistry battery charging applications. It supports charging 1- to 4-cell batteries from a wide range of input sources, including USB 2.0, USB 3.0, USB 3.1 (Type C), and USB PD. The BQ25703ARSNR also features comprehensive system power monitoring and processor hot monitoring, making it suitable for various portable and industrial applications.

Key Specifications

ParameterValueUnit
Input Voltage Operating Range3.5 to 24V
Switching Frequency800 kHz or 1.2 MHz
Inductor Range1 µH to 3.3 µH
Output Voltage Range4.48 V to 20.8 VV
Output Current LimitUp to 6.35 AA
Charge Voltage Regulation Accuracy±0.5%
Input/Charge Current Regulation Accuracy±2%
Power Monitor Accuracy±5%
Package Type32-Pin 4 × 4 WQFN
Operating Temperature Range-40 to 125°C°C

Key Features

  • Seamless transition between buck and boost operation.
  • Input current and voltage regulation (IDPM and VDPM) against source overload.
  • Comprehensive PROCHOT profile, IMVP8 compliant.
  • Input and battery current monitor.
  • System 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).
  • Integrated ADC to monitor voltage, current, and power.
  • High accuracy regulation and monitoring.
  • Safety features: thermal shutdown, input, system, battery overvoltage protection, and MOSFET inductor overcurrent protection.
  • Low battery quiescent current.
  • Input current optimizer (ICO) to extract maximum input power.
  • Supports various battery chemistries: Li+, LiFePO4, NiCd, NiMH, Lead Acid.

Applications

  • Drones
  • Bluetooth speakers
  • IP cameras
  • Detachable tablet PCs
  • Power banks
  • Industrial and medical equipment
  • Portable equipment with rechargeable batteries

Q & A

  1. What is the input voltage operating range of the BQ25703ARSNR?
    The input voltage operating range is from 3.5 V to 24 V.
  2. What are the supported USB standards?
    The device supports USB 2.0, USB 3.0, USB 3.1 (Type C), and USB PD.
  3. What is the maximum output current limit?
    The maximum output current limit is up to 6.35 A.
  4. What is the accuracy of charge voltage regulation?
    The charge voltage regulation accuracy is ±0.5%.
  5. Does the BQ25703ARSNR support multiple battery chemistries?
    Yes, it supports Li+, LiFePO4, NiCd, NiMH, and Lead Acid battery chemistries.
  6. What is the package type of the BQ25703ARSNR?
    The package type is a 32-Pin 4 × 4 WQFN.
  7. What safety features are included in the BQ25703ARSNR?
    The device includes thermal shutdown, input, system, battery overvoltage protection, and MOSFET inductor overcurrent protection.
  8. Can the BQ25703ARSNR power up a USB port from the battery?
    Yes, it can power up a USB port from the battery (USB OTG).
  9. What is the operating temperature range of the BQ25703ARSNR?
    The operating temperature range is from -40°C to 125°C.
  10. Does the BQ25703ARSNR have an integrated ADC?
    Yes, it has an integrated ADC to monitor voltage, current, and power.

Product Attributes

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 Type:Surface Mount
Package / Case:32-WFQFN Exposed Pad
Supplier Device Package:32-QFN (4x4)
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Similar Products

Part Number BQ25703ARSNR BQ25703ARSNT BQ25700ARSNR
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Function Battery Monitor Battery Monitor Battery Monitor
Battery Chemistry Multi-Chemistry Multi-Chemistry Multi-Chemistry
Number of Cells 1 ~ 4 1 ~ 4 1 ~ 4
Fault Protection Over Current, Over Temperature, Over Voltage Over Current, Over Temperature, Over Voltage Over Current, Over Temperature, Over Voltage
Interface I²C I²C I²C
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad
Supplier Device Package 32-QFN (4x4) 32-QFN (4x4) 32-QFN (4x4)

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