產品詳細資料

Number of series cells 1 Charge current (max) (A) 0.5 Vin (max) (V) 5.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 20 Control topology Linear Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Integrated LDO, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.15 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 0.5 Vin (max) (V) 5.5 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 20 Control topology Linear Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Integrated LDO, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.15 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFP) 20 3.96 mm² 1.8 x 2.2
  • Linear battery charger with 1.25-mA to 500-mA fast charge current range
    • 0.5% Accurate I 2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV steps
    • Configurable termination current supporting down to 0.5 mA
    • 20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating range
    • Programmable thermal charging profile, fully configurable hot, warm, cool and cold thresholds
  • Power Path management for powering system and charging battery
    • I 2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and Input pass-though options
    • Dynamic power path management optimizes charging from weak adapters
    • Advanced I 2C control allows host to disconnect the battery or adapter as needed
  • I 2C Configurable load switch or up to 150-mA LDO output
    • Programmable range from 0.6 V to 3.7 V in 100-mV steps
  • Ultra low Iddq for extended battery life
    • 10-nA Ship mode battery Iq
    • 400-nA Iq While powering the system (PMID and VDD on)
  • One push-button wake-up and reset input with adjustable timers
    • Supports system power cycle and HW reset
  • 20-Pin 2-mm x 1.6-mm CSP package
  • 11-mm 2 Total solution size
  • Linear battery charger with 1.25-mA to 500-mA fast charge current range
    • 0.5% Accurate I 2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV steps
    • Configurable termination current supporting down to 0.5 mA
    • 20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating range
    • Programmable thermal charging profile, fully configurable hot, warm, cool and cold thresholds
  • Power Path management for powering system and charging battery
    • I 2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and Input pass-though options
    • Dynamic power path management optimizes charging from weak adapters
    • Advanced I 2C control allows host to disconnect the battery or adapter as needed
  • I 2C Configurable load switch or up to 150-mA LDO output
    • Programmable range from 0.6 V to 3.7 V in 100-mV steps
  • Ultra low Iddq for extended battery life
    • 10-nA Ship mode battery Iq
    • 400-nA Iq While powering the system (PMID and VDD on)
  • One push-button wake-up and reset input with adjustable timers
    • Supports system power cycle and HW reset
  • 20-Pin 2-mm x 1.6-mm CSP package
  • 11-mm 2 Total solution size

The BQ21062 is a highly integrated battery charge management IC that integrates the most common functions for wearable, portable and small medical devices, namely a charger, a regulated output voltage rail for system power, a Load Switch/LDO, and push-button controller.

The BQ21062 IC integrates a linear charger with Power Path that enables quick and accurate charging for small batteries while providing a regulated voltage to the system. The regulated system voltage (PMID) output may be configured through I 2C based on the recommended operating condition of downstream IC’s and system loads for optimal system operation.

The device supports charge current up to 500 mA and supports termination current down to 0.5 mA for maximum charge. The battery is charged using a standard Li-Ion charge profile with three phases: pre-charge, constant current and constant voltage regulation.

The device integrates advanced power path management and control that allows the device to provide power to the system while charging the battery even with poor adapters. The host may also control the power path through I 2C allowing it to disconnect the input adapter and/or battery without physically removing them. The single push-button input eliminates the need of a separate button controller IC reducing the total solution footprint. The push-button input can be used for wake functions or to reset the system. The low quiescent current during operation and shutdown enables maximum battery life. The input current limit, charge current, LDO output voltage, and other parameters are programmable through the I 2C interface making the BQ21062 a very flexible charging solution. A voltage-based JEITA compatible (or standard HOT/COLD) battery pack thermistor monitoring input (TS) is included that monitors battery temperature and automatically changes charge parameters to prevent the battery from charging outside of its safe temperature range. The temperature thresholds are also programable through I 2C allowing the host to customize the thermal charging profile. The charger is optimized for 5-V USB input, with 20-V absolute maximum tolerance to withstand line transients. The device also integrates a linear regulator to provide a quiet rail for radios or processors and can be independently sourced and controlled through I 2C.

The BQ21062 is a highly integrated battery charge management IC that integrates the most common functions for wearable, portable and small medical devices, namely a charger, a regulated output voltage rail for system power, a Load Switch/LDO, and push-button controller.

The BQ21062 IC integrates a linear charger with Power Path that enables quick and accurate charging for small batteries while providing a regulated voltage to the system. The regulated system voltage (PMID) output may be configured through I 2C based on the recommended operating condition of downstream IC’s and system loads for optimal system operation.

The device supports charge current up to 500 mA and supports termination current down to 0.5 mA for maximum charge. The battery is charged using a standard Li-Ion charge profile with three phases: pre-charge, constant current and constant voltage regulation.

The device integrates advanced power path management and control that allows the device to provide power to the system while charging the battery even with poor adapters. The host may also control the power path through I 2C allowing it to disconnect the input adapter and/or battery without physically removing them. The single push-button input eliminates the need of a separate button controller IC reducing the total solution footprint. The push-button input can be used for wake functions or to reset the system. The low quiescent current during operation and shutdown enables maximum battery life. The input current limit, charge current, LDO output voltage, and other parameters are programmable through the I 2C interface making the BQ21062 a very flexible charging solution. A voltage-based JEITA compatible (or standard HOT/COLD) battery pack thermistor monitoring input (TS) is included that monitors battery temperature and automatically changes charge parameters to prevent the battery from charging outside of its safe temperature range. The temperature thresholds are also programable through I 2C allowing the host to customize the thermal charging profile. The charger is optimized for 5-V USB input, with 20-V absolute maximum tolerance to withstand line transients. The device also integrates a linear regulator to provide a quiet rail for radios or processors and can be independently sourced and controlled through I 2C.

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* Data sheet BQ21062 I2C Controlled 1-Cell 500-mA Linear Battery Charger with Power Path, Load Switch, 10-nA Ship Mode, and Regulated System (PMID) Voltage datasheet (Rev. A) PDF | HTML 2023年 4月 26日
Application note State of Charge Estimation Using Smart Battery Charger PDF | HTML 2021年 10月 11日
Technical article Pull the tab: How to implement ship mode in your lithium-ion battery design PDF | HTML 2019年 2月 20日

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