BQ2019 基于快闪的精密多化合物充电/放电计数器，具有高速 1 线 I/F (HDQ)
|
BQ2019 |
| Communication Interface |
HDQ |
| Pin/Package |
8TSSOP |
| Approx. Price (US$) |
1.95 | 1ku |
| Operating Temperature Range(°C) |
-20 to 70 |
| Implementation |
Pack |
BQ2019 描述
The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products.
The bq2019 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2019 data and communicates meaningful battery data to the end-user or power-management system.
The bq2019 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM, and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery-monitor information, identification codes, warranty information, or other critical battery parameters when the battery is temporarily shorted or deeply discharged
BQ2019 特性
- Multifunction Monitoring IC Designed to Work With an Intelligent Host Controller
- Provides State-of-Charge Information for Rechargeable Batteries
- Enhances Charge Termination
- Ideal for Single-Cell Li-Ion or 3-Cell NiMH Applications
- High-Accuracy Coulometric Charge and Discharge Current Integration With Offset Calibration
- 32 Bytes of General-Purpose RAM
- 96 Bytes of Flash (Including 32 Bytes of Shadow Flash)
- 8 Bytes of ID ROM
- Internal Temperature Sensor Eliminates the Need for an External Thermistor
- Multifunction Digital Output Port
- High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
- Low Power Consumption
- Operating: <80 uA
- Sleep: <1.5 uA
- Single-Wire HDQ Serial Interface
- Packaging: 8-Lead TSSOP
BQ2019 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 |
| BQ2019PW |
ACTIVE |
-20 to 70 |
2.30 | 1ku |
TSSOP (PW) | 8 |
100 | TUBE |
BQ219 |
| BQ2019PWG4 |
ACTIVE |
-20 to 70 |
2.30 | 1ku |
TSSOP (PW) | 8 |
100 | TUBE |
BQ219 |
| BQ2019PWR |
ACTIVE |
-20 to 70 |
1.95 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
BQ219 |
| BQ2019PWRG4 |
ACTIVE |
-20 to 70 |
1.95 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
BQ219 |
BQ2019 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 |
| BQ2019PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2019PW |
BQ2019PW |
| BQ2019PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2019PWG4 |
BQ2019PWG4 |
| BQ2019PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2019PWR |
BQ2019PWR |
| BQ2019PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2019PWRG4 |
BQ2019PWRG4 |
BQ2019 应用技术支持与电子电路设计开发资源下载
- BQ2019 数据资料 dataSheet 下载.PDF
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- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
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- 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)
BQ2019 相关工具