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BQ28400
- Fully Integrated Gas Gauge and Analog Monitoring with Protection in a Single Package
- 2-Series Cell Li-Ion or Li-Polymer Battery Packs
- Flexible Memory Architecture with Integrated Flash Memory
- Zero-Volt and Pre-Charge Mode
- Full Array of Programmable Protection:
- OV (Overvoltage)
- UV (Undervoltage)
- SC (Short Circuit)
- OT (Overtemperature)
- CIM (Cell Imbalance)
- Accurate CEDV Gauging Algorithm with Self Discharge Compensation
- High Accuracy Analog Interface with Two Independent ADCs:
- High Resolution 16-Bit Integrator for Coulomb Counting
- 16-Bit Delta-Sigma ADC with a 16-Channel Multiplexer for Voltage, Current, and Temperature
- High Side Protection FET Drive
- Fully Integrated Internal Clock Synthesizer with No External Components Required
- Two-Wire SMBus v1.1 Compliant Communications
- Reduced Power Modes (Typical Battery Pack Operating Range Conditions)
- Low Power
- Shutdown
- 20-Pin TSSOP Package (RoHS-Compliant)
- JEITA/Enhanced Charging
- Supports SHA-1 Authentication Responder
- APPLICATIONS
- Tablet PCs
- Slate PCs
- Netbooks/Notebooks
- Smartbooks
The bq28400 device is a fully integrated gas gauge and analog monitoring management solution that provides protection and control for 2-series cell Li-Ion battery packs in a single TSSOP package.
Implementing the optimum balance of quick response analog hardware-based monitoring and control along with an integrated fast CPU provides the ideal pack-based or in-system Li-Ion battery solution. The bq28400 also provides flexible user programmable settings stored in flash memory for control of critical system parameters such as overcurrent, short circuit, under/overvoltage, and over/undertemperature conditions.
The bq28400 communicates with the system host via a two-wire SMBus 1.1 compatible interface, providing high-accuracy reporting and control of battery pack operation. The FET drive and TSSOP package enable a lower cost and small footprint solution along with a simple layout and routing on narrow pack PCBs.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Tablet PC and Netbook 2-Series Cell Li-Ion Battery Gas Gauge and Protection datasheet (Rev. A) | 2010/12/22 | |
| Application note | Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B) | PDF | HTML | 2019/07/12 | |
| User guide | bq28400 INTEGRATED GAS GAUGE and BATTERY PROTECTION MANAGEMENT with SBS TRM | 2011/06/28 | ||
| User guide | bq28400 EVM-001 SBS 1.1 Compliant | 2011/03/01 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| TSSOP (PW) | 20 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치