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Gleiche Funktionalität, andere Pinbelegung als verglichener Baustein
BQ25628 AKTIV I²C-gesteuertes einzelliges Ladegerät mit Boost-Modus und ADC, Eingang max. 18 V, 2 A This product is a 2-A buck charger with low battery leakage current and Ilim pin
BQ25629 AKTIV I²C-gesteuertes einzelliges Ladegerät mit USB-Erkennung und ADC, Eingang max. 18 V, 2 A This product is a 2-A buck charger with low battery leakage current and D+D- USB detection

Produktdetails

Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 13.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.52 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.9 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 13.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.52 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.9 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 30 5.71999999999999912 mm² 2.2 x 2.5999999999999996
  • Single chip solution to charge wearable accessories from adapter or battery
  • High-efficiency, 1.5-MHz, synchronous switch-mode buck charger
    • 95.5% charge efficiency at 0.5 A and 94.5% efficiency at 1 A
    • ±0.5% charge voltage regulation (10-mV step)
    • I2C programmable JEITA profile of charge voltage, current and temperature thresholds
    • Low termination current with high accuracy 20 mA±10 mA
    • Small inductor form factor of 2.5 x 2.0 x 1.0 mm3
  • Boost mode with output from 4.6 V to 5.15 V
    • 94% boost efficiency at 1-A output
    • Integrated control to switch between Charge and Boost mode
    • PMID_GOOD pin control external PMOS FET for protection against fault conditions
  • Single input supporting USB input, high-voltage adapter, or wireless power
    • Support 4-V to 13.5-V input voltage range with 22-V absolute max input rating
    • Programmable input current limit (IINDPM) with I2C (100 mA to 3.2 A, 100-mA/step)
    • Maximum power tracking by input voltage limit (VINDPM) up to 5.4 V
    • VINDPM threshold automatically tracks battery voltage
  • Narrow VDC (NVDC) power path management
    • System instant-on with no battery or deeply discharged battery
  • Flexible I2C configuration and autonomous charging for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • Low RDSON 19.5-mΩ BATFET to minimize charging loss and extend battery run time
    • BATFET control for Ship mode, and full system reset with and without adapter
  • 7-µA low battery leakage current in Ship mode
  • 9.5-µA low battery leakage current with system standby
  • High accuracy battery charging profile
    • ±6% charge current regulation
    • ±7.5% input current regulation
    • Remote battery sensing to charge faster
    • Programmable top-off timer for full battery charging
  • Safety Related Certifications:
    • IEC 62368-1 CB Certification
  • Single chip solution to charge wearable accessories from adapter or battery
  • High-efficiency, 1.5-MHz, synchronous switch-mode buck charger
    • 95.5% charge efficiency at 0.5 A and 94.5% efficiency at 1 A
    • ±0.5% charge voltage regulation (10-mV step)
    • I2C programmable JEITA profile of charge voltage, current and temperature thresholds
    • Low termination current with high accuracy 20 mA±10 mA
    • Small inductor form factor of 2.5 x 2.0 x 1.0 mm3
  • Boost mode with output from 4.6 V to 5.15 V
    • 94% boost efficiency at 1-A output
    • Integrated control to switch between Charge and Boost mode
    • PMID_GOOD pin control external PMOS FET for protection against fault conditions
  • Single input supporting USB input, high-voltage adapter, or wireless power
    • Support 4-V to 13.5-V input voltage range with 22-V absolute max input rating
    • Programmable input current limit (IINDPM) with I2C (100 mA to 3.2 A, 100-mA/step)
    • Maximum power tracking by input voltage limit (VINDPM) up to 5.4 V
    • VINDPM threshold automatically tracks battery voltage
  • Narrow VDC (NVDC) power path management
    • System instant-on with no battery or deeply discharged battery
  • Flexible I2C configuration and autonomous charging for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • Low RDSON 19.5-mΩ BATFET to minimize charging loss and extend battery run time
    • BATFET control for Ship mode, and full system reset with and without adapter
  • 7-µA low battery leakage current in Ship mode
  • 9.5-µA low battery leakage current with system standby
  • High accuracy battery charging profile
    • ±6% charge current regulation
    • ±7.5% input current regulation
    • Remote battery sensing to charge faster
    • Programmable top-off timer for full battery charging
  • Safety Related Certifications:
    • IEC 62368-1 CB Certification

The BQ25618/619 integrates charge, boost converter and voltage protection in a single device. It offers the industry’s lowest termination current for switching chargers to charge wearable devices by full battery capacity. The BQ25618/619 best-in-class low quiescent current reduces battery leakage down to 6 uA in Ship mode, which conserves battery energy to double the shelf life for the device. BQ25619 is in 4x4 QFN package for easy layout. BQ25618 is in 2.0x2.4mm2 WCSP package for space limited design.

The BQ25618/619 integrates charge, boost converter and voltage protection in a single device. It offers the industry’s lowest termination current for switching chargers to charge wearable devices by full battery capacity. The BQ25618/619 best-in-class low quiescent current reduces battery leakage down to 6 uA in Ship mode, which conserves battery energy to double the shelf life for the device. BQ25619 is in 4x4 QFN package for easy layout. BQ25618 is in 2.0x2.4mm2 WCSP package for space limited design.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet BQ25618/619 I2C Controlled 1-Cell 1.5-A Battery Charger with 20-mA Termination and 1-A Boost Operation datasheet (Rev. D) PDF | HTML 23 Dez 2021
Application note High-Efficiency Charging for TWS Using a 2-Pin Interface Application Report (Rev. A) PDF | HTML 16 Mai 2023
Application note Selection of Single-Cell Buck Narrow VDC Switching Battery Chargers PDF | HTML 10 Nov 2022
User guide BQ25618 BMS024 Evaluation Module 05 Sep 2019

Design und Entwicklung

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Evaluierungsplatine

BQ25618EVM — I2C-gesteuertes Evaluierungsmodul für 1-zellige 1,5-A-Abwärts-Akkuladegerät mit Terminierung und 1,2

The BQ25618EVM is an evaulation module (EVM) used to test the BQ25618 device, a 1.5-A single-cell battery charger optimized for power bank applications in low power portable designs. The OTG reverse synchronous boost operation and forward buck mode operation allows for control over power (...)
Benutzerhandbuch: PDF
Treiber oder Bibliothek

BQ256XXSW-LINUX — Linux-Treiber für BQ256XX

The Linux driver supports the BQ256XX family of I2C Controlled, 1-cell, switch-mode battery charge management and system power path management ICs. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.

Linux mainline status

Available in Linux (...)

Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
DSBGA (YFF) 30 Ultra Librarian

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