BQ28400

現行

筆記型電腦和平板電腦鋰離子電量計和保護器

立即訂購

產品規格表

document-pdfAcrobat Tablet PC and Netbook 2-Series Cell Li-Ion Battery Gas Gauge and Protection datasheet (Rev. A) (英文)

現在提供此產品的更新版本

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比較替代產品

功能相同，但引腳輸出與所比較的裝置不同

BQ40Z50-R2

現行

支援 Turbo 模式 2.0 的 1-4 系列鋰離子電池組管理器 SHA-1 authentication, TURBO mode 2.0, black box recorder, adaptive charging

BQ28400

現行

產品規格表

立即訂購

產品詳細資料

Cell chemistry

Li-Ion/Li-Polymer

Number of series cells

2-4 Cells

Communication interface

SMBus

Battery capacity (min) (mAh)

500

Battery capacity (max) (mAh)

32000

Implementation

Pack

External capacity indication

None

Features

Impedance Track™ algorithm

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Cell chemistry

Li-Ion/Li-Polymer

Number of series cells

2-4 Cells

Communication interface

SMBus

Battery capacity (min) (mAh)

500

Battery capacity (max) (mAh)

32000

Implementation

Pack

External capacity indication

None

Features

Impedance Track™ algorithm

Operating temperature range (°C)

-40 to 85

Rating

Catalog

TSSOP (PW)

20

41.6 mm² 6.5 x 6.4

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

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.

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.

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	類型	標題		日期
*	Data sheet	Tablet PC and Netbook 2-Series Cell Li-Ion Battery Gas Gauge and Protection datasheet (Rev. A)		2010年 12月 22日
	Application note	Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B)	PDF \| HTML	2019年 7月 12日
	User guide	bq28400 INTEGRATED GAS GAUGE and BATTERY PROTECTION MANAGEMENT with SBS TRM		2011年 6月 28日
	User guide	bq28400 EVM-001 SBS 1.1 Compliant		2011年 3月 1日

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應用軟體及架構

GPCCEDV — 適用於 CEDV 電量計的計量參數計算機

計量參數計算機 (GPC) 是一種數學計算與模擬工具，可協助電池設計人員為特定電池性能評測工具取得相符的補償放電終止電壓 (CEDV) 係數。此工具可讓使用者提高電量計 IC 隨溫度變化的準確度。

電池組必須使用其中一種以 TI 的 CEDV 演算法為基礎的電量計。可接受 3 對記錄檔案，而這些檔案是使用透過 USB 連接 CEDV 評估板之 TI 的 Battery Management Studio (bqStudio) 軟體建立的。充電和放電需要使用外部設備。若要進行準確的計算，也會需要電池組設定的其他參數。輸出資訊將以包含 CEDV (...)

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