BQ2023 用于手机和 PDA 应用领域的单线高级电池监控 IC
|
BQ2023 |
| Communication Interface |
SDQ |
| Pin/Package |
8TSSOP |
| Approx. Price (US$) |
2.45 | 1ku |
| Operating Temperature Range(°C) |
-20 to 70 |
| Implementation |
Pack |
BQ2023 描述
The bq2023 is an advanced battery monitoring IC that accurately measures the charge and discharge currents in rechargeable battery packs. Intended for pack integration, the bq2023 contains all the necessary functions to form the basis for an accurate battery gas gauge in cellular phones, PDAs, or other portable products.
Gas gauging is accomplished by coulomb counting (i.e., measuring the charge input to and subsequently removed from the battery). The bq2023 achieves that by measuring the differential voltage drop across a low-value series sense resistor between the negative terminal of the battery and the battery-pack negative contact. An internal voltage-to-frequency converter (VFC) converts this voltage into charge and discharge counts
BQ2023 特性
- Multifunction Monitoring IC Designed to Work With an Intelligent Host Controller:
- Provides Accurate State of Charge Information for Rechargeable Batteries
- Enhances Power and Charge Management in the System
- Supply Operation Down to 2.4 V; Ideal for Single-Cell Li-Ion or Li-Pol Applications
- Communicates Over Single-Wire SDQTM Serial Interface
- Resolves Signals Down to 3.05 uVh
- High-Accuracy Coulometric Charge and Discharge Current Integration
- Differential Current Sense Input
- Automatic and Continuous Offset Calibration and Compensation
- 32 Bytes of General-Purpose RAM, 224 Bytes of FLASH, and 8 Bytes of Secure ID ROM
- Internal Temperature Sensor With 0.25°K Resolution Eliminates the Need for an External Thermistor
- Programmable Digital Output Port
- Battery-Pack Removal Detection Input Places the IC in the Sleep Mode When System Is Not Present
- High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
- Low Power Consumption:
- Operating: 40 uA
- Sleep: 1.5 uA
BQ2023 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ2023PW |
ACTIVE |
-20 to 70 |
2.25 | 1ku |
TSSOP (PW) | 8 |
100 | TUBE |
2023 |
| BQ2023PWG4 |
ACTIVE |
-20 to 70 |
2.25 | 1ku |
TSSOP (PW) | 8 |
100 | TUBE |
2023 |
| BQ2023PWR |
ACTIVE |
-20 to 70 |
1.90 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
2023 |
| BQ2023PWRG4 |
ACTIVE |
-20 to 70 |
1.90 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
2023 |
BQ2023 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| BQ2023PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2023PW |
BQ2023PW |
| BQ2023PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2023PWG4 |
BQ2023PWG4 |
| BQ2023PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2023PWR |
BQ2023PWR |
| BQ2023PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2023PWRG4 |
BQ2023PWRG4 |
BQ2023 应用技术支持与电子电路设计开发资源下载
- BQ2023 数据资料 dataSheet 下载.PDF
- TI 德州仪器电池管理产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- QFN Layout Guidelines (PDF 1279 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPADTM Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
BQ2023 相关工具