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BQ21061 ACTIVO Cargador lineal de 1 celda de 500 mA con modo de carga de 10 nA, ruta de alimentación, tensión de This product is a 500-mA 1-cell I2C linear charger with 10-nA IQ, power path and a LDO

Detalles del producto

Number of series cells 1 Charge current (max) (A) 0.5 Vin (max) (V) 10.2 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.35 Battery charge voltage (max) (V) 4.35 Absolute max Vin (max) (V) 28 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, Power Path Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 0.5 Vin (max) (V) 10.2 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.35 Battery charge voltage (max) (V) 4.35 Absolute max Vin (max) (V) 28 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), Input OVP, Power Path Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGT) 16 9 mm² 3 x 3
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-based Dynamic Power Management (VIN– DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating With Overvoltage Protection
  • 4.35-V Battery Regulation
  • Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 500-mA Charge Current With Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 500 mA for Wall Adapters
  • Programmable Termination Current (bq24232H)
  • Programmable Precharge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-up Sequence Limits Inrush Current
  • Status Indication – Charging/Done, Power Good
  • Small 3-mm × 3-mm 16-Lead QFN Package
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-based Dynamic Power Management (VIN– DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating With Overvoltage Protection
  • 4.35-V Battery Regulation
  • Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 500-mA Charge Current With Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 500 mA for Wall Adapters
  • Programmable Termination Current (bq24232H)
  • Programmable Precharge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-up Sequence Limits Inrush Current
  • Status Indication – Charging/Done, Power Good
  • Small 3-mm × 3-mm 16-Lead QFN Package

The bq2423xH series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter and support charge currents from 25 mA to 500 mA. The high-input voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423xH to meet USB-IF inrush current specifications. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.

The bq2423xH features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this feature enables instant system turn-on even with a totally discharged battery. The power-path management architecture also lets the battery supplement the system current requirements when the adapter cannot deliver the peak system currents, thus enabling the use of a smaller adapter.

The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high-accuracy current and voltage regulation loops, charge status display, and charge termination. The input current limit and charge current are programmable using external resistors.

The bq2423xH series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter and support charge currents from 25 mA to 500 mA. The high-input voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423xH to meet USB-IF inrush current specifications. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.

The bq2423xH features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this feature enables instant system turn-on even with a totally discharged battery. The power-path management architecture also lets the battery supplement the system current requirements when the adapter cannot deliver the peak system currents, thus enabling the use of a smaller adapter.

The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high-accuracy current and voltage regulation loops, charge status display, and charge termination. The input current limit and charge current are programmable using external resistors.

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Documentación técnica

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Tipo Título Fecha
* Data sheet bq2423xx USB-Friendly Lithium-Ion Battery Charger and Power-Path Management IC datasheet (Rev. B) PDF | HTML 08 abr 2017
Application note Configuring Standalone Linear Power Path Chargers (Rev. A) PDF | HTML 06 abr 2020
Application note Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 01 may 2018
Analog Design Journal 2Q 2016 Analog Applications Journal Issue 26 abr 2016
Analog Design Journal Battery-charging considerations for low-power applications 26 abr 2016
User guide bq24230H and bq24232H 1.5-A Single-Chip Li-Ion 29 ene 2014

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

BQ24232HEVM-608 — Cargador completo para el módulo de evaluación de la solución de carga de batería en modo lineal y g

The bq2423XH evaluation module (EVM) is a complete charger module for evaluating compact, linear mode battery charge and power path management solution for single-cell, Li-ion and Li-polymer battery-powered systems used in a wide range of portable applications.

Archivo Gerber

Linear Charger NTC Calculator

SLUC670.ZIP (350 KB)
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VQFN (RGT) 16 Ultra Librarian

Pedidos y calidad

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  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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