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BQ25170 활성 800mA 선형 배터리 충전기 - 1셀 리튬 이온 및 LiFePO4용 This product is an 800-mA, single cell Li-Ion and LiFePO4 battery linear charger with programmable charge voltage

제품 상세 정보

Number of series cells 1 Charge current (max) (A) 2 Vin (max) (V) 15 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) 18 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) -20 to 70
Number of series cells 1 Charge current (max) (A) 2 Vin (max) (V) 15 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) 18 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) -20 to 70
SOIC (D) 8 29.4 mm² 4.9 x 6 TSSOP (PW) 8 19.2 mm² 3 x 6.4 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Ideal for single (4.1 V or 4.2 V) and dual-cell (8.2 V or 8.4 V) Li-ion or Li-pol packs
  • Requires small number of external components
  • 0.3-V dropout voltage for minimizing heat dissipation
  • Better than ±1% voltage regulation accuracy with preset voltages
  • AutoCompM dynamic compensation of battery pack’s internal impedance to reduce charge time
  • Optional cell-temperature monitoring before and during charge
  • Integrated voltage and current regulation with programmable charge-current and high- or low-side current sensing
  • Integrated cell conditioning for reviving deeply discharged cells and minimizing heat dissipation during initial stage of charge
  • Charge status output for single or dual led or host processor interface
  • Automatic battery-recharge feature
  • Charge termination by minimum current
  • Automatic low-power sleep mode when VCC is removed
  • EVMs available for quick evaluation
  • Packaging: 8-pin SOIC, 8-pin TSSOP, 8-pin MSOP
  • Ideal for single (4.1 V or 4.2 V) and dual-cell (8.2 V or 8.4 V) Li-ion or Li-pol packs
  • Requires small number of external components
  • 0.3-V dropout voltage for minimizing heat dissipation
  • Better than ±1% voltage regulation accuracy with preset voltages
  • AutoCompM dynamic compensation of battery pack’s internal impedance to reduce charge time
  • Optional cell-temperature monitoring before and during charge
  • Integrated voltage and current regulation with programmable charge-current and high- or low-side current sensing
  • Integrated cell conditioning for reviving deeply discharged cells and minimizing heat dissipation during initial stage of charge
  • Charge status output for single or dual led or host processor interface
  • Automatic battery-recharge feature
  • Charge termination by minimum current
  • Automatic low-power sleep mode when VCC is removed
  • EVMs available for quick evaluation
  • Packaging: 8-pin SOIC, 8-pin TSSOP, 8-pin MSOP

The BQ2057 series advanced lithium-ion (Li-ion) and lithium-polymer (Li-pol) linear charge-management ICs are designed for cost-sensitive and compact portable electronics. They combine high-accuracy current and voltage regulation, battery conditioning, temperature monitoring, charge termination, charge-status indication, and AutoComp™ charge-rate compensation in a single 8-pin IC. MSOP, TSSOP, and SOIC package options are offered to fit a wide range of end applications.

The BQ2057 continuously measures battery temperature using an external thermistor. For safety, the BQ2057 inhibits charge until the battery temperature is within user-defined thresholds. The BQ2057 then charges the battery in three phases: conditioning, constant current, and constant voltage. If the battery voltage is below the low-voltage threshold, V(min), the BQ2057 precharges using a low current to condition the battery. The conditioning charge rate is approximately 10% of the regulation current. The conditioning current also minimizes heat dissipation in the external pass-element during the initial stage of the charge. After conditioning, the BQ2057 applies a constant current to the battery. An external sense-resistor sets the current. The sense-resistor can be on either the high or low side of the battery without additional components. The constant-current phase continues until the battery reaches the charge-regulation voltage.

The BQ2057 then begins the constant-voltage phase. The accuracy of the voltage regulation is better than ±1% over the operating-temperature and supply-voltage ranges. For single and dual cells, the BQ2057 is offered in four fixed-voltage versions: 4.1 V, 4.2 V, 8.2 V, and 8.4 V. Charge stops when the current tapers to the charge termination threshold, I(TERM). The BQ2057 automatically restarts the charge if the battery voltage falls below the V(RCH) threshold.

The designer also may use the AutoComp feature to reduce charging time. This proprietary technique allows safe and dynamic compensation for the internal impedance of the battery pack during charge.

The BQ2057 series advanced lithium-ion (Li-ion) and lithium-polymer (Li-pol) linear charge-management ICs are designed for cost-sensitive and compact portable electronics. They combine high-accuracy current and voltage regulation, battery conditioning, temperature monitoring, charge termination, charge-status indication, and AutoComp™ charge-rate compensation in a single 8-pin IC. MSOP, TSSOP, and SOIC package options are offered to fit a wide range of end applications.

The BQ2057 continuously measures battery temperature using an external thermistor. For safety, the BQ2057 inhibits charge until the battery temperature is within user-defined thresholds. The BQ2057 then charges the battery in three phases: conditioning, constant current, and constant voltage. If the battery voltage is below the low-voltage threshold, V(min), the BQ2057 precharges using a low current to condition the battery. The conditioning charge rate is approximately 10% of the regulation current. The conditioning current also minimizes heat dissipation in the external pass-element during the initial stage of the charge. After conditioning, the BQ2057 applies a constant current to the battery. An external sense-resistor sets the current. The sense-resistor can be on either the high or low side of the battery without additional components. The constant-current phase continues until the battery reaches the charge-regulation voltage.

The BQ2057 then begins the constant-voltage phase. The accuracy of the voltage regulation is better than ±1% over the operating-temperature and supply-voltage ranges. For single and dual cells, the BQ2057 is offered in four fixed-voltage versions: 4.1 V, 4.2 V, 8.2 V, and 8.4 V. Charge stops when the current tapers to the charge termination threshold, I(TERM). The BQ2057 automatically restarts the charge if the battery voltage falls below the V(RCH) threshold.

The designer also may use the AutoComp feature to reduce charging time. This proprietary technique allows safe and dynamic compensation for the internal impedance of the battery pack during charge.

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관심 가지실만한 유사 제품

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비교 대상 장치와 유사한 기능
BQ24040 활성 4.2V VBAT 및 온도 감지를 지원하는 독립형 1셀 1A 선형 배터리 충전기 This product is a 1A, standalone, single-cell Li-Ion battery charger in a 2x2mm package.
BQ24401 활성 dT/dt 터미네이션을 지원하는 스위치 모드 NiCd/NiMH 배터리 충전기 This product is a standalone fast charge IC for nickle cadmium (NiCd) and nickel metal-hydride (NiMH)

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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유형 직함 날짜
* Data sheet Advanced Linear Charge Mgmt IC for Single/Two-Cell Lithium-Ion & Lithium-Polymer datasheet (Rev. G) 2022/12/23

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 모듈(EVM)용 GUI

SLVC024 bq24715 EVM GUI Package

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
배터리 충전기 IC
BQ2000 피크 전압 감지 터미네이션을 지원하는 스위치 모드 멀티 케미스트리 배터리 충전기 BQ2000T dT/dt 터미네이션을 지원하는 스위치 모드 멀티 케미스트리 배터리 충전기 BQ2002 음극 dV, PVT 및 Top-Off 시간 설정1을 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002C 음극 dV, PVT를 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002D dT/dt 터미네이션을 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002E 음극 dV, PVT 및 tMTO 설정1을 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002F 음극 dV, PVT 및 Top-Off 시간 설정2를 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002G 음극 dV, PVT 및 tMTO 설정2를 지원하는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2002T dT/dt 터미네이션 및 저온 오류가 있는 NiCd/NiMH 배터리 충전 컨트롤러 BQ2031 사용자 선택 가능한 충전 알고리즘을 지원하는 스위치 모드 납산 배터리 충전기 BQ2057C AutoCompTM, 4.2V를 지원하는 저손실 선형 1셀 리튬 이온 충전 컨트롤러 BQ24010 1셀, 1A, 선형 리튬 이온 배터리 충전기(QFN-11 패키지에서 AC 입력 및 온도 감지 지원) BQ24012 1셀, 1A, 선형 리튬 이온 배터리 충전기(QFN-12에서 FET, AC 입력 및 충전 지원) BQ24013 1셀, 1A, 선형 리튬 이온 배터리 충전기(QFN-11 패키지에서 충전 지원, Term 지원) BQ24200 MSOP-8에서 온도 감지를 지원하는 전류 제한 앱용 500mA, 4.2V 리튬 이온 충전기 BQ24201 MSOP-8에서 온도 감지를 지원하는 전류 제한 앱용 500mA, 4.1V 리튬 이온 충전기 BQ24202 MSOP-8에서 충전 상태를 지원하는 전류 제한 앱용 500mA, 4.2V 리튬 이온 충전기 BQ24203 MSOP-8에서 충전 상태를 지원하는 전류 제한 앱용 500mA, 4.1V 리튬 이온 충전기 BQ24205 전류 제한 앱용 500mA, 4.1V 리튬 이온 충전기(MSOP-8) BQ24715 N채널 MOSFET 선택기를 지원하는 SMBus 2~3셀 NVDC 벅 배터리 충전 컨트롤러
패키지 CAD 기호, 풋프린트 및 3D 모델
SOIC (D) 8 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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