제품 상세 정보

Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 6.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 125
Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 6.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² 3 x 3
  • Small 3 mm × 3 mm MLP Package
  • Charges and powers Systems from Either AC Adapter or USB With Autonomous power-Source Selection
  • Integrated USB Control With Selectable 100 mA and 500 mA Charge Rates
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-pol Packs in Space Limited portable applications
  • Integrated power FET and Current Sensor for Up to 1-A Charge applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • power Good (AC Adapter Present) Status Output
  • Optional Battery Temperature Monitoring Before and During Charge
  • Automatic Sleep Mode for Low-power Consumption
  • APPLICATIONS
    • PDAs, MP3 Players
    • Digital Cameras
    • Internet appliances
    • Smartphones

bqTINY is a trademark of Texas Instruments.

  • Small 3 mm × 3 mm MLP Package
  • Charges and powers Systems from Either AC Adapter or USB With Autonomous power-Source Selection
  • Integrated USB Control With Selectable 100 mA and 500 mA Charge Rates
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-pol Packs in Space Limited portable applications
  • Integrated power FET and Current Sensor for Up to 1-A Charge applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • power Good (AC Adapter Present) Status Output
  • Optional Battery Temperature Monitoring Before and During Charge
  • Automatic Sleep Mode for Low-power Consumption
  • APPLICATIONS
    • PDAs, MP3 Players
    • Digital Cameras
    • Internet appliances
    • Smartphones

bqTINY is a trademark of Texas Instruments.

The bqTINY-II series are highly-integrated, flexible Li-Ion linear charge and system power management devices for space-limited charger applications. In a single monolithic device, the bqTINY-II offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power-FET and current-sensor interfaces, high-accuracy current and voltage regulation, charge status, and charge termination.

The bqTINY-II automatically selects the USB-port or the ac-adapter as the power source for the system. In the USB configuration, the host can select from two preset charge rates of 100 mA or 500 mA. In the ac-adapter configuration, an external resistor sets the system or charge current.

The bqTINY-II charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The bqTINY-II automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY-II automatically enters sleep mode when both supplies are removed.

Different versions of the bqTINY-II offer many additional features. These include a temperature-sensor input for detecting hot or cold battery packs, a power-good output (PG) indicating the presence of input power, a TTL-level charge-enable input (CE) used to disable or enable the charge process, and a TTL-level timer and taper-detect enable input (TTE) used to disable or enable the fast-charge timer and charge termination.

The bqTINY-II series are highly-integrated, flexible Li-Ion linear charge and system power management devices for space-limited charger applications. In a single monolithic device, the bqTINY-II offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power-FET and current-sensor interfaces, high-accuracy current and voltage regulation, charge status, and charge termination.

The bqTINY-II automatically selects the USB-port or the ac-adapter as the power source for the system. In the USB configuration, the host can select from two preset charge rates of 100 mA or 500 mA. In the ac-adapter configuration, an external resistor sets the system or charge current.

The bqTINY-II charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The bqTINY-II automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY-II automatically enters sleep mode when both supplies are removed.

Different versions of the bqTINY-II offer many additional features. These include a temperature-sensor input for detecting hot or cold battery packs, a power-good output (PG) indicating the presence of input power, a TTL-level charge-enable input (CE) used to disable or enable the charge process, and a TTL-level timer and taper-detect enable input (TTE) used to disable or enable the fast-charge timer and charge termination.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
4개 모두 보기
유형 직함 날짜
* Data sheet Single-Chip Li-Ion & Li-Pol Charger IC w/Autonomous USB-Port & AC Adapt datasheet (Rev. E) 2007/11/21
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/06
Analog Design Journal Designing a linear Li-Ion battery charger with power-path control 2009/05/01
Analog Design Journal Q2 2009 Issue Analog Applications Journal 2009/05/01

설계 및 개발

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평가 보드

BQ24020EVM — bq24020 bqTINY-II 평가 모듈

The bq24020EVM is an evaluation tool for the bq24020 linear single-cell Li-Ion charger with autonomous USB and AC adapter power management in 3x3mm2 QFN package. The EVM is a complete designed-and-tested charger circuit that allows the user to test all functions of the bq24020 and to charge a (...)

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SLUC670.ZIP (350 KB)
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