BQ2031 用户可选择充电算法的铅酸开关模式充电管理 IC
BQ2031 描述
The bq2031 Lead-Acid Fast Charge IC is designed to optimize charging of lead-acid chemistry batteries. A flexible pulse-width modulation regulator allows the bq2031 to control constant-voltage, constant-current, or pulsed-current charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum for high charge current applications.
A charge cycle begins when power is applied or the battery is replaced. For safety, charging is inhibited until the battery voltage is within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2031 provides trickle-currentcharging until the voltage rises into the allowed range or an internal timer runs out and places the bq2031 in a Fault condition
| BQ2031 | |
| # Series Cells | Multiple |
| Charge Current(Max)(A) | >2 |
| Charge Status Outputs | 3 |
| Control Topology | Switchmode |
| Switching Frequency(kHz) | 100 |
| Primary Charge Termination Method | Maximum Voltage, (-)d2V, Minimum Current |
| Pin/Package | 16PDIP, 16SOIC |
BQ2031 特性
- Conforms to battery manufacturers' charge recommendations for cyclic and float charge
- Pin-selectable charge algorithms
- Two-Step Voltage with temperature-compensated constant-voltage maintenance
- Two-Step Current with constant-rate pulsed current maintenance
- Pulsed Current: hysteretic, on-demand pulsed current - Pin-selectable charge termination by maximum voltage,
2V, minimum current, and maximum time
- Pre-charge qualification detects shorted, opened, or damaged cells and conditions battery
- Charging continuously qualified by temperature and voltage limits
- Internal temperature-compensated voltage reference
- Pulse-width modulation control
- Ideal for high-efficiency switch-mode power conversion
- Configurable for linear or gated current use - Direct LED control outputs display charge status and fault conditions
BQ2031 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 |
| BQ2031PN-A5 | ACTIVE | -20 to 70 | 2.80 | 1ku | PDIP (N) | 16 | 25 | TUBE | 2031PN-A5 |
| BQ2031PN-A5E4 | ACTIVE | -20 to 70 | 2.80 | 1ku | PDIP (N) | 16 | 25 | TUBE | 2031PN-A5 |
| BQ2031SN-A5 | ACTIVE | -20 to 70 | 3.35 | 1ku | SOIC (D) | 16 | 40 | TUBE | 2031 (-A5, A5) |
| BQ2031SN-A5G4 | ACTIVE | -20 to 70 | 3.35 | 1ku | SOIC (D) | 16 | 40 | TUBE | 2031 (-A5, A5) |
| BQ2031SN-A5TR | ACTIVE | -20 to 70 | 2.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | 2031 (-A5, A5) |
| BQ2031SN-A5TRG4 | ACTIVE | -20 to 70 | 2.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | 2031 (-A5, A5) |
BQ2031 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 |
| BQ2031PN-A5 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | BQ2031PN-A5 | BQ2031PN-A5 |
| BQ2031PN-A5E4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | BQ2031PN-A5E4 | BQ2031PN-A5E4 |
| BQ2031SN-A5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2031SN-A5 | BQ2031SN-A5 |
| BQ2031SN-A5G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2031SN-A5G4 | BQ2031SN-A5G4 |
| BQ2031SN-A5TR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2031SN-A5TR | BQ2031SN-A5TR |
| BQ2031SN-A5TRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2031SN-A5TRG4 | BQ2031SN-A5TRG4 |
BQ2031 应用技术支持与电子电路设计开发资源下载
- BQ2031 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)
- PowerPAD™ 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)
BQ2031 相关工具
| 名称 | 型号 | 工具/软件类型 |
| 池充电器的快速搜索选择工具 | BATTERY_CHARGERS_SELECTION_TOOL | 免费评估工具 |
| 温度传感设计软件 | TEMPSENSE-SW | 分析软件 |
| 用于铅酸、开关模式 BQ2031 的评估模块 | DV2031S2 | 开发电路板/EVM |
